Under Pressure Or Vacuum Patents (Class 203/11)
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Publication number: 20140083838Abstract: Method for removing dissolved gases from water to produce boiler feed water in a catalytic steam reforming process where boiler feed water is heated by indirect heat transfer with a reformate stream and/or a combustion product gas stream and the boiler feed water subsequently flash vaporized to form steam and residual liquid water, where the steam formed by flash vaporization strips the dissolved gases from the water.Type: ApplicationFiled: June 7, 2013Publication date: March 27, 2014Inventors: Joel Charles MacMurray, Gary Stuart Roth, Russell Ira Snyder, III, Gerald Michael Loughney
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Patent number: 8647477Abstract: Water can be separated from a liquid composition (e.g., salt water) by directing a carrier gas flow through an evaporator and directly contacting the carrier gas flow with the liquid composition in the evaporator to humidify the carrier gas with water evaporated from the liquid composition, producing a humidified gas flow, which is then compressed by injecting a fluid that includes steam and/or an organic compound at an elevated pressure at least five times greater than the pressure in the evaporator and at a temperature at least as high as a saturation temperature of the steam/organic compound at the elevated pressure of the fluid. After being compressed, the humidified gas flow is directed through at least one condenser where water is condensed from the compressed humidified gas flow and collected; and the dehumidified gas flow is re-circulated back through the evaporator for reuse as the carrier gas.Type: GrantFiled: February 15, 2011Date of Patent: February 11, 2014Assignees: Massachusetts Institute of Technology, King Fahd University of Petroleum and MineralsInventors: Prakash N. Govindan, Karan H. Mistry, John H. Lienhard, Syed M. Zubair
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Publication number: 20140034478Abstract: An evaporator assembly includes an inlet member and a diffuser, and receives a mixture of a gas and a solution to vaporize a portion of a solvent from the solution. First portions of the diffuser and of the inlet member collectively define a first flow path. A second portion of the diffuser defines a second flow path that diverges. A third portion of the diffuser and a second portion of the inlet member collectively define an evaporation volume between the first flow path and the second flow path. At least one of the diffuser or the inlet flow member includes multiple vanes that produce a rotation within a flow of the mixture when the flow exits the first flow path into the evaporation volume. A separator receives the mixture to produce a first flow of a portion of the solvent and a second flow of a portion of the solute.Type: ApplicationFiled: January 31, 2013Publication date: February 6, 2014Applicant: MICRONIC TECHNOLOGIES, INC.Inventor: Micronic Technologies, Inc.
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Publication number: 20140014492Abstract: Embodiments of the invention provide a method for producing a treated water stream. The method includes receiving a feed stream including at least one substance dissolved in a water phase, and processing the feed water stream in a plurality of stages arranged in operation from a lowest temperature and pressure to a highest temperature and pressure, to produce the treated water stream and a concentrated stream. Each stage includes a vessel, a heat exchanger, an evaporator, and a condenser. Each evaporator is configured to evaporate an amount of water using one of direct heat or indirect heat. Each condenser is configured to condense at least a portion of steam generated by a successive stage. In accordance with various embodiments, the plurality of stages is arranged in series. In other embodiments, the plurality of stages is arranged in parallel.Type: ApplicationFiled: June 5, 2013Publication date: January 16, 2014Inventors: Mourad Victor Younes, Regis Didier Alain Vilagines, Guillaume Robert Jean-Francois Raynel
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Patent number: 8608966Abstract: The invention relates to a method and an apparatus for dewatering mixture of ethanol and water. The method comprises steps for feeding mixture of ethanol and water (1) into an evaporator (2), evaporating said mixture of ethanol and water (1) and feeding a stream of vaporized mixture of ethanol and water (3) to a vapor recompression unit (4), pressurizing vaporized mixture of ethanol and water (3) in the vapor recompression unit (4) and feeding a stream of pressurized vaporized mixture of ethanol and water (5) to a membrane unit (6), and dividing said stream of pressurized mixture of ethanol and water (5) in to a stream of mixture of ethanol and water (8) and into a stream of dewatered mixture of ethanol and water (7).Type: GrantFiled: November 7, 2008Date of Patent: December 17, 2013Assignee: ST1 Biofuels OyInventors: Antti Pasanen, Mikko Ahokas
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Patent number: 8603223Abstract: A water desalination system including at least one pair of evaporators, said pair including a high pressure and a low pressure evaporator, each for evaporating saline water to produce water vapor; at least three adsorption beds in selective vapor communication with each evaporator, said adsorption beds arranged to reversibly adsorb the water vapor from the corresponding evaporator; said adsorption beds in selective vapor communication with a condenser, and in heat transfer communication with a heat source for selectively desorbing the adsorbed water vapor; said condenser arranged to condense the water vapor to desalinated water; wherein said system is arranged to sequentially connect, for a pre-determined period, each evaporator to a corresponding adsorption bed, and the heat source to the third bed.Type: GrantFiled: July 20, 2010Date of Patent: December 10, 2013Assignee: National University of SingaporeInventors: Bidyut Baran Saha, Kim Choon Ng, Anutosh Chakraborty, Kyaw Thu
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Patent number: 8580084Abstract: A method of water desalination in a filter press may comprise: providing a chamber between two filter plates in the filter press, the chamber being lined by filter cloths; substantially filling the chamber with a plurality of beads; pumping water into the chamber filled with the beads; heating the water in the chamber; and collecting water vapor generated by the heating; wherein salts precipitate in the chamber during the heating. Furthermore, during the heating, the chamber may be vacuum pumped to facilitate removal of water vapor. The beads may be reused in the chambers of the filter press.Type: GrantFiled: February 1, 2010Date of Patent: November 12, 2013Inventors: Daniel J. Simpson, Ferdinand Kogler
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Patent number: 8551343Abstract: A method and system for managing heat energy in a fluid purification system is provided. Initially, air is compressed using one or more compressors to obtain a compressed hot air. Then one or more fluids are purified using the heat energy associated with the compressed hot air in one or more fluid purification units thereby releasing a compressed cooled air. One or more hot purified fluids are stored in one or more fluid storage tanks obtained in response to the purification of the one or more fluids. Thereafter, the compressed cooled air is heated using a heat energy associated with the one or more hot purified fluids to obtain a heated compressed air. Subsequently, one or more turbines are operated using heat energy associated with the heated compressed air to obtain an expanded cooled air. The expanded cooled air is utilized for cooling.Type: GrantFiled: May 25, 2010Date of Patent: October 8, 2013Assignee: King Abdulaziz City for Science and Technology (KACST)Inventors: Mazen Abdullah Ba-Abbad, Hany Abdulrahman Al-Ansary
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Patent number: 8545681Abstract: Disclosed is a process for improving the efficiency of a combined-cycle power generation plant and desalination unit. The process includes supplying exhaust gases from a gas turbine set used to generate electrical power to a heat recovery steam generator (HRSG) and then directing the steam from the HRSG to a steam turbine set. Salinous water is supplied into an effect of the desalination unit. Steam exhausted from the steam turbine set is utilized in the effect of the desalination unit to produce a distillate vapor and brine from the effect by heat exchange. Additionally, steam is introduced steam from at least one additional heat source from the combined-cycle power generation plant to the effect to increase the mass flow rate of steam into the effect. In one embodiment, the additional heat source is an intercooler heat exchanger. Heated water from the intercooler heat exchanger is provided to a reduced atmosphere flash tank, and the steam flashed in the flash tank is provided to the effect.Type: GrantFiled: December 23, 2009Date of Patent: October 1, 2013Assignee: General Electric CompanyInventors: Andrew Philip Shapiro, Nishith Vora, Ching-Jen Tang, AliciA Jillian Jackson Hardy, Douglas Westerkamp
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Patent number: 8535542Abstract: A method of separating a mixture of liquid and insoluble solids in a filter press may comprise: pumping the mixture into a chamber between two filter plates in the filter press to form a filter cake, wherein the chamber is lined by filter cloths, and wherein, during the pumping, filtrate is forced through the filter cloths and out of the chamber; heating the filter cake in the chamber, wherein, during the heating, filtrate is forced through the filter cloths and out of the chamber, and wherein the heating is by radio frequency irradiation of the filter cake in the chamber; and releasing dried filter cake from the chamber.Type: GrantFiled: November 2, 2009Date of Patent: September 17, 2013Inventors: Daniel J. Simpson, Ferdinand Kogler
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Patent number: 8535538Abstract: Embodiments provided herein include methods and apparatuses for purification and recycling of hydrofracture water used in natural gas drilling and production. Embodiments include removal of dissolved solids by precipitation with sodium sulfate and by evaporation using, for example, a multiple effect evaporator.Type: GrantFiled: January 26, 2010Date of Patent: September 17, 2013Assignee: Fairmount Brine Processing, LLCInventors: John J. Keeling, Rex B. Tennant, II, David B. Wingard
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Publication number: 20130233697Abstract: Methods including a) volatilizing at least a portion of contaminated water contained in a contaminated water reservoir and thereby generating volatilized water, the contaminated water reservoir being fluidly coupled to a water generator reservoir; b) conveying the volatilized water to the water generator reservoir; c) cooling the volatilized water in the water generator reservoir and thereby generating purified water, substantially dehumidified gas, and heat; and d) conveying at least one of the substantially dehumidified gas and the heat to the contaminated water reservoir.Type: ApplicationFiled: March 8, 2013Publication date: September 12, 2013Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventor: Jason Bryant
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Patent number: 8512567Abstract: A desalination system wherein a latent heat of condensation produced by the temperature gradient across a membrane distillation (MD) module is transferred directly to a latent heat of vaporization during desalination of a liquid flow stream. The desalination system comprises the MD module disposed within an object and configured to receive an input feed stream for desalination and produce an output flow stream of a product. The system also comprises a vapor compressor in fluidic communication with the MD module and configured to introduce a hot steam to a high temperature side of the MD module and extract a cool steam, having a temperature less than the hot steam, from a low temperature side of the MD module, thereby creating a temperature gradient across of the MD module. A desalination method is also presented.Type: GrantFiled: August 31, 2010Date of Patent: August 20, 2013Assignee: General Electric CompanyInventor: Andrew Philip Shapiro
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Patent number: 8491276Abstract: A pump includes: a branch pipe extending from a pump body for branching a part of raw water introduced from outside through a raw water inlet; a first tank having an exhaust pipe of an engine accommodated therein, the raw water supplied via the branch pipe being evaporated by heat of the exhaust pipe; a second tank provided over the first tank and having the branch pipe accommodated therein, vapor produced by evaporation of the raw water in the first tank being condensed into water droplets in the second tank; and a communication pipe interconnecting the first and second tanks in communication with each other.Type: GrantFiled: May 19, 2011Date of Patent: July 23, 2013Assignee: Honda Motor Co., LtdInventors: Kaku Okabe, Asagi Miwa
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Patent number: 8470139Abstract: In accordance with one embodiment, a method for treating fractionated water produced by a hydraulic fracturing process is provided. The method includes decanting a fractionated water stream in at least one decanter. The decanter is maintained at a temperature ranging from about 90° F. to about 120° F. The method also includes flashing the decanted water in at least one first flash tank and at least one second flash tank in fluid communication with one another to provide a residual concentrate stream. The first flash tank is operated at a temperature ranging from about 180° F. to about 200° F. and the second flash tank is operated at a temperature ranging from about 140° F. to about 160° F. Both the first flash tank and the second flash tank are maintained at a vacuum pressure. The method also includes evaporating the residual concentrate stream in at least one evaporator kettle to produce a concentrated brine.Type: GrantFiled: September 9, 2010Date of Patent: June 25, 2013Assignee: NGInnovations, Inc.Inventor: Donald W. Booth
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Patent number: 8460555Abstract: This invention reveals to the public the centralized sump oil and acid oil treatment process and system. The process consist of (1) the filter; (2) entry to reaction kettle, the sodium carbonate solution added at the time of air floatation till PH value keeps about 6.0-8.0; and emulsion splitter and flocculating agent added for further reaction; (3) suspension of air floatation and static settlement; (4) the international crude oil is collected after the detergent oil at the upper level of the reaction kettle is dehydrated under normal and reduced pressure; the wastewater is drained after filtering by the natural oil removal tank and the oil-water filter; the sludge is solidified by the cement and the quick lime and aluminium oxide are used as the coagulant aid for solidifying the sludge.Type: GrantFiled: June 24, 2010Date of Patent: June 11, 2013Inventor: Gang Yuan
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Patent number: 8444830Abstract: A desalination process including heating brine in a preheating chamber and transferring the brine to a rotary kiln to be sprayed against the wall structure of the rotary kiln to boil to steam and a residue of salt/impurities, the exiting steam being pressurized in a compressor and passed to an externally powered heater to be heated and then fed to a hollow wall structure of the rotating kiln in which the steam condenses to pure water to be transferred to the preheating chamber to preheat the incoming brine, the rotating kiln being arranged to rotate past a scraper to remove salt/impurities from the wall structure for collection at the base of the kiln.Type: GrantFiled: June 17, 2008Date of Patent: May 21, 2013Inventor: Garth Davey
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Patent number: 8419903Abstract: The invention relates to a method for controlling, manually or automatically, the composition or quality of one or more products removed from the head, the sump or a lateral removal point of the distillation column having a built-in heat-exchanger. The method is characterized in that, by changing the pressure in the column, in the region of the product removal, the new boiling temperature of the product is determined from the vapor pressure curve of the product at said pressure and the temperature of the distillation removal is adjusted to said new boiling temperature by means of the modified coolant flowing through the heat-exchanger, preferably in the counter direction.Type: GrantFiled: July 12, 2008Date of Patent: April 16, 2013Inventor: Frank Bahr
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Patent number: 8414745Abstract: The scarcity of fresh water for human consumption and agricultural irrigation is an ongoing problem affecting billions of people. This problem is only getting worse with growing human populations, pollution and global warming. Relying on underground sources of fresh water is not a viable long-term solution. I propose to solve the problem of fresh water scarcity with a new kind of desalination method. This desalination method is comprised of recycled materials thereby reducing the amount of pollution in the world. This desalination method uses no other power sources other than solar energy. The usage of recycled materials and renewable energy sources thereby ensures that this desalination method is a low cost way of transporting seawater and converting it into fresh water.Type: GrantFiled: April 26, 2010Date of Patent: April 9, 2013Inventor: Caroline Richards Cormier
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Publication number: 20130068608Abstract: Heat exchanger steam condenser water distillation is described. In one aspect, a water distillation condenser has a heated air conduit in air flow communication with a heat exchanger. A cold raw water compartment is disposed above the heated air conduit and at least a bottom surface of the cold raw water compartment disposed at an angle. A heated raw water channel is defined between the heated air conduit and the raw water compartment. A floor of the heated raw water channel is defined by a top of the heated air conduit. A distilled water trough is disposed below a lower extent of the cold raw water compartment.Type: ApplicationFiled: September 19, 2011Publication date: March 21, 2013Applicant: King Saud UniversityInventors: Mazen A. Ba-abbad, Hany A. Al-Ansary, Essam A. Al-Ammar
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Publication number: 20130062188Abstract: A system and method for treating waste water includes: receiving waste water at a first pressure and a first temperature, the waste water including dissolved solids and volatile organic compounds; pressurizing, by a pump, the received waste water to a second pressure greater than the first pressure; preheating, by a preheater, the pressurized waste water to produce distilled water and a pressurized/preheated waste water; heating, by a heater, the pressurized/preheated waste water to a second temperature greater than the first temperature to produce pressurized/heated waste water; removing, by a flash evaporator, dissolved solids from the pressurized/heated waste water by evaporation to produce steam and brine water, wherein the brine water has a total dissolved solids content greater than a total dissolved solids content of the received waste water; and crystallizing, by a plasma crystallizer, the brine water to produce a solid mass of waste product and steam.Type: ApplicationFiled: September 13, 2012Publication date: March 14, 2013Applicant: AQUASOURCE TECHNOLOGIES CORPORATIONInventor: Shyam V. Dighe
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Publication number: 20130062189Abstract: System and method of treating waste water includes: receiving waste water at a first pressure and a first temperature, the waste water comprising dissolved solids and VOCs; pressurizing the waste water to a second pressure; preheating the pressurized waste water to a second temperature to produce distilled water and pressurized/preheated water; heating the pressurized/preheated to a third temperature to produce pressurized/heated water; removing dissolved solids from the pressurized/heated water, by an evaporator operated at a third pressure less than the second pressure, to produce steam and brine water; and crystallizing the brine water, by a crystallizer operated at a fourth pressure greater than the second pressure, to produce a solid mass waste product and steam. Steam produced by the crystallizer, at the fourth pressure and a fourth temperature, is a heat source for the preheater and/or heater, and steam produced by the evaporator is a heat source for the crystallizer.Type: ApplicationFiled: September 13, 2012Publication date: March 14, 2013Applicant: Aquasource Technologies CorporationInventor: Shyam V. Dighe
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Publication number: 20130062191Abstract: System and method of treating waste water includes: receiving waste water at a first pressure and temperature, the waste water comprising dissolved solids and VOCs; pressurizing, by a pump, the received waste water to a second pressure greater than the first pressure; preheating, by a preheater, the waste water to a second temperature greater than the first temperature producing distilled water; heating, by a condenser, the waste water to a third temperature greater than the second temperature; heating the pressurized/heated water with a heater operated with a hot gas developed by a plasma torch to a fourth temperature greater than the third temperature; and removing dissolved solids from the waste water by evaporation to produce steam and brine water, wherein the brine water has a total dissolved solids content greater than a total dissolved solids content of the received waste water. The brine water is crystallized to a solid mass.Type: ApplicationFiled: September 13, 2012Publication date: March 14, 2013Applicant: AQUASOURCE TECHNOLOGIES CORPORATIONInventor: Shyam V. Dighe
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Publication number: 20130062190Abstract: System and method of treating waste water includes: receiving waste water at a first pressure and temperature, the waste water comprising dissolved solids and VOCs; pressurizing, by a pump, the received waste water to a second pressure greater than the first pressure; preheating, by a preheater, the waste water to a second temperature greater than the first temperature producing distilled water; further heating, by a condenser, the pressurized/preheated waste water to a fourth temperature greater than the second temperature; still further heating, by a heater, the pressurized/further heated waste water to a third temperature greater than the fourth temperature; and removing, by a flash evaporator, dissolved solids from the pressurized/heated waste water by evaporation producing steam and brine water, the brine water having a TDS content greater than a TDS content of the received waste water. The brine water may be crystallized to a solid mass.Type: ApplicationFiled: September 13, 2012Publication date: March 14, 2013Applicant: AQUASOURCE TECHNOLOGIES CORPORATIONInventor: Shyam V. Dighe
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Patent number: 8372248Abstract: A water purification system having an oil and vapor separation subsystem for removing many heavy duty and toxic contaminants from the water. The subsystem removes volatile vapors from the feed water, heats the feed water, and by imparting a swirling vortex action to the heated water, the oils are separated from the water. The water separated from the oil is pumped by a high pressure pump through a helical coil that is heated to a high temperature by the burner. The high temperature, hot water is then fed to an expansion nozzle in an expansion chamber to flash the hot water into steam. The steam is passed through a condenser which converts the steam to purified water.Type: GrantFiled: January 13, 2012Date of Patent: February 12, 2013Inventor: Raymond C. Sherry
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Publication number: 20130015051Abstract: The productivity of a combined heat and mass transfer device is improved by directing a flow of a carrier-gas mixture through a fluid flow path in a combined heat and mass transfer device operating at a pressure below atmospheric pressure. Heat and mass are transferred from or to the carrier-gas mixture by a direct or indirect interaction with a liquid composition that includes a vaporizable component (e.g., water) in a liquid state to substantially change the content of the vaporizable component in the carrier-gas mixture via evaporation of the vaporizable component from the liquid composition or via condensation of the vaporizable component from the carrier-gas mixture, producing a flow of carrier-gas mixture having a concentration of the vaporizable component that differs from the concentration of the vaporizable component in the carrier-gas mixture before the heat and mass transfer process.Type: ApplicationFiled: September 21, 2012Publication date: January 17, 2013Applicants: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Massachusetts Institute of Technology, King Fahd University of Petroleum and Minerals
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Patent number: 8337672Abstract: The invention relates to the oil processing industry and can be used for producing vacuum in a vacuum petroleum distillation column. The inventive method involves pumping out a vapor-gas medium from the column by of a gas-gas ejector in such a way that a vapor-gas mixture is formed at the entry thereof and supplying said mixture to a condenser for producing a gas mixture and a vapor phase condensate. The gas mixture is supplied from the condenser to a liquid-gas jet apparatus and the condensate is delivered to an additional separator. A hydrocarbon-containing condensate is removed from the additional separator for the intended use thereof and a water-containing condensate is fed to a steam generator for producing steam by supplying heat of a hot distillate evacuated from the vacuum column. The thus obtained steam is used in the gas-gas ejector as a high-pressure gas.Type: GrantFiled: November 6, 2008Date of Patent: December 25, 2012Inventor: Valery Grigorievich Tsegelsky
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Patent number: 8317982Abstract: The present invention discloses a process and apparatus for utilization of waste heat of flue gas liberated from different heat sources to provide high quality water from sea/brackish.Type: GrantFiled: March 15, 2007Date of Patent: November 27, 2012Inventor: Subrahmanyam Kumar
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Publication number: 20120294795Abstract: A hydraulic desalination system, device and method includes lowering the pressure of liquid saltwater to the vaporization point by generating flow through piping and accompanying infrastructure that may include valves that impart friction and control flow, capturing the vapor, condensing the vapor using higher pressure supplied by the ambient surroundings producing freshwater, recovering the heat released during condensation by maintaining ambient temperatures greater than vapor temperatures, and then using the recovered heat to enhance and perpetuate vaporization in a cyclical manner. A novel spring-loaded pump for pumping fluids may facilitate the process.Type: ApplicationFiled: March 29, 2012Publication date: November 22, 2012Inventor: Marvin W. PIERRE
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Publication number: 20120267231Abstract: The present invention relates to systems and related methods of water purification by distillation that will operate in a self-contained mode using a passive heat source, such as, without limitation, solar heat, air conditioning waste heat, or waste heat from the exhaust or cooling systems of an internal combustion engine, which may be used to desalinate sea water, saline water, or saline water containing contaminants. The present invention may also be used to distil sewage water, creek water, swamp water or water containing contaminants or used to cleanse or purify water contaminated with mud, chemicals, minerals, or bacteria in a local environment.Type: ApplicationFiled: May 8, 2012Publication date: October 25, 2012Inventor: Rahmi Oguz Capan
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Publication number: 20120267232Abstract: A system and method for processing a fluid, including decontaminating water and generating water vapor includes introducing the fluid into a vessel. The fluid is moved through a series of rotating trays alternately separated by stationary baffles so as to swirl and heat the fluid to effect the vaporization thereof to produce a vapor having at least some of the contaminants separated therefrom. The vapor is removed from the vessel for condensing apart from the separated contaminants and the remaining water. The vapor may be passed through a turbine connected to an electric generator. Sensors in a controller may be employed to adjust the speed of rotation of the trays or fluid input into the vessel in response to the sensed conditions. The treated fluid may be recirculated and reprocessed through the vessel to increase the purification thereof.Type: ApplicationFiled: June 28, 2012Publication date: October 25, 2012Applicant: VERNO HOLDINGS, LLCInventors: John D. Riley, Dana L. Johnson
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Patent number: 8282791Abstract: This invention describes a low temperature, self-sustainable desalination process operated under natural vacuum conditions created and maintained by barometric pressure head.Type: GrantFiled: December 20, 2011Date of Patent: October 9, 2012Assignee: Arrowhead Center, Inc.Inventors: Nagamany Nirmalakhandan, Veera Gnaneswar Gude
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Patent number: 8277614Abstract: The once-through multi-stage flash (MSF) desalination plant with feed cooler is a desalination system utilizing a feed water cooler. Particularly, the plant includes a conventional MSF system, with a separate water cooler for cooling the seawater or brine that is input into the system, prior to the passage of the brine into the condensation conduits and brine heater. In use, the cooled brine is pumped, under pressure, through at least one conduit that passes through a plurality of flash chambers. The brine is then heated and injected into the plurality of flash chambers, where it is flashed into steam. The steam condenses on an external surface of the at least one conduit, and the condensed water is then extracted from the plant.Type: GrantFiled: September 29, 2008Date of Patent: October 2, 2012Assignee: King Abdulaziz UniversityInventor: Majed Moalla Alhazmy
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Patent number: 8273156Abstract: Contaminated water stored in an equalization basin is distributed to one or more flash vessels and a desired vacuum is pulled in a filled flash vessel, reducing the boiling point of the contained contaminated water. The suction force is preferably created by passing the contaminated water under pressure through a differential pressure injector. The contaminated water in the flash vessel completes an electrical circuit between conductive plates and a heating element that are submerged therein. An alternating electrical current is applied, some of which is conducted by the contaminated water to a heating element that heats the water, and the rest of which dissipates as thermal energy, heating the contaminated water. The alternating current is preferably generated by passing the contaminated water under pressure through a hydroelectric power generator. Little thermal energy is needed to evaporate the contaminated water, which condenses at the top of the flash vessel and is collected from a collection trough.Type: GrantFiled: July 1, 2009Date of Patent: September 25, 2012Inventor: Eric John Dole
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Publication number: 20120205236Abstract: Water can be separated from a liquid composition, such as salt water, by directing a flow of a carrier gas through at least one evaporator and directly contacting the carrier gas flow with the liquid composition in the evaporator to humidify the carrier gas with water evaporated from the liquid composition, producing a humidified gas flow. The humidified gas flow is then compressed by injecting a fluid that includes steam and/or an organic compound at an elevated pressure at least five times greater than the pressure in the evaporator and at a temperature at least as high as a saturation temperature of the steam/organic compound at the elevated pressure of the fluid. After being compressed, the humidified gas flow is directed through at least one condenser where water is condensed from the compressed humidified gas flow and collected. The dehumidified gas flow is re-circulated from the condenser back through the evaporator, where the dehumidified gas is reused as the carrier gas.Type: ApplicationFiled: February 15, 2011Publication date: August 16, 2012Applicants: KING FAHD UNIVERSITY OF PETROLEUM & MINERALS, MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Prakash N. Govindan, Karan H. Mistry, John H. Lienhard, Syed M. Zubair
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Publication number: 20120199534Abstract: In accordance with particular embodiments, a desalination system includes a plurality of evaporators. The plurality of evaporators includes at least a first evaporator and a last evaporator. The plurality of evaporators are arranged in cascading fashion such that a concentration of salt in a brine solution increases as the brine solution passes through the plurality of evaporators from the first evaporator towards the last evaporator. The desalination system also includes a plurality of heat exchangers. An input of each evaporator is coupled to at least one of the plurality of heat exchangers. The system also includes a vapor source coupled to at least one of the plurality of evaporators.Type: ApplicationFiled: August 17, 2011Publication date: August 9, 2012Applicants: TERRABON ADVE, LLC, The Texas A&M University SystemInventors: Mark T. Holtzapple, George A. Rabroker, Li Zhu, Jorge H.J. Lara Ruiz, Somsak Watanawanavet
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Patent number: 8226799Abstract: An embodiment of a distillation system is disclosed having an influent column with an influent column first end and an influent column second end and having therein, a gas deflector. The influent column may contain at least an influent liquid and vapor from the influent liquid. The influent column first end may be in fluid communication with an influent liquid source. A distillation system is disclosed as having at least one effluent column having an effluent column first end and an effluent column second end and further comprising a condensation chamber adjacent the effluent second end. The effluent column may be positioned within the influent column and may contain at least an effluent liquid and vapor. A primary vacuum source may be in fluid communication with an influent column and positioned at an influent second end. A blower may be provided and connected to the condensation chamber. The influent column may have at least one vertically positioned influent conduit.Type: GrantFiled: June 11, 2009Date of Patent: July 24, 2012Inventor: Anthony D. Young
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Publication number: 20120175239Abstract: A method for processing waste solution in the plate-making process, in which the waste solution in the plate-making process, which is discharged when the plate-making process of a photosensitive planographic printing plate is carried out using a developer for a photosensitive planographic printing plate, the developer containing at least one sugar selected from non-reducing sugars and at least one base without containing a silicate and by having a pH from 9.0 to 13.5, is evaporated and concentrated by an evaporative concentration apparatus, thereby being separated into water vapor and a dissolved component, wherein, the waste solution in the plate-making process is heated by a heating means in an evaporation container that is provided with base resistance, and the water vapor separated from the waste solution in the plate-making process is taken out from the evaporation container and condensed in a cooling means, thereby being turned into reclaimed water.Type: ApplicationFiled: June 18, 2010Publication date: July 12, 2012Inventors: Norio Aoshima, Toshihiro Watanabe, Fumikazu Kobayashi
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Patent number: 8216431Abstract: There is described a water distillation system comprising a boiler assembly and a condenser assembly communicating by means of superheated steam through a passive magnetic valve opening directly under force of pressure. This allows the recovery of the latent heat of evaporation through a passive process. Additional features are described which complement the efficient transfer and recapture of heat energy, and the management of miscible fluid constituents. The distillation system described is useful for producing potable water and can be transportable or fixed in location and/or scaled for residential, neighborhood and municipal application. The distillation system may also be used for efficiently clarifying other fluids, such as for ‘de-watering’ ethanol.Type: GrantFiled: April 23, 2008Date of Patent: July 10, 2012Inventor: Mark Edward Tellam
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Patent number: 8206557Abstract: In one embodiment, an apparatus includes a housing that has at least an inlet and an outlet. The housing is configured to receive a volume of fluid via the inlet. The volume of fluid is in a substantially liquid state and at least a portion of the volume of fluid includes a dissolved impurity. The apparatus also includes a heat-transfer element coupled to an interior volume of the housing. The heat-transfer element includes a surface, at least a portion of which is disposed at an angle with respect to a horizontal plane. The volume of fluid includes a surface parallel to the horizontal plane. The apparatus further includes a compression component configured to compress at least a portion of fluid boiled from the volume of fluid.Type: GrantFiled: November 7, 2007Date of Patent: June 26, 2012Assignee: Hydrologic Industries, Inc.Inventors: Francis P. Burke, Kenneth J. Horne, David B. Taylor, Stephen R. Topaz
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Patent number: 8202401Abstract: In one embodiment, a method includes moving a first volume of fluid from a region above a heat-transfer element to a region below the heat-transfer element after the first volume of fluid is boiled from a second volume of fluid within the region above the heat-transfer element. The first volume of fluid including an impurity concentration lower than an impurity concentration of the second volume of fluid. The region below the heat-transfer element has a temperature higher than a temperature of the region above the heat-transfer element. The method also includes transferring latent heat from the first volume of fluid to a third volume of fluid on a top surface of the heat transfer element. The latent heat is released when the first volume of fluid condenses.Type: GrantFiled: November 7, 2007Date of Patent: June 19, 2012Assignee: Hydrologic Industries, Inc.Inventors: David B. Taylor, Stephen R. Topaz
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Patent number: 8202402Abstract: The present invention relates to systems and related methods of water purification by distillation that will operate in a self-contained mode using a passive heat source, such as, without limitation, solar heat, air conditioning waste heat, or waste heat from the exhaust or cooling systems of an internal combustion engine, which may be used to desalinate sea water, saline water, or saline water containing contaminants. The present invention may also be used to distil sewage water, creek water, swamp water or water containing contaminants or used to cleanse or purify water contaminated with mud, chemicals, minerals, or bacteria in a local environment.Type: GrantFiled: November 29, 2006Date of Patent: June 19, 2012Assignee: Hse Hittt Solar Enerji Anonim SirkertiInventor: Rahmi Oguz Capan
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Publication number: 20120118722Abstract: Herein disclosed is a heat exchanger. The heat exchanger comprises at least one pipe having a centerline, an inlet and an outlet; and a multiplicity of tubes, wherein each tube comprises a centerline, an inner surface, an outer surface, and groves; wherein the multiplicity of tubes are placed inside the pipe and the centerline of each tube is perpendicular to the centerline of the pipe. Herein also disclosed is a heat exchange system. Such a system comprises the heat exchanger as described herein, wherein the heat exchanger is configured to receive an incoming feed stream and to discharge a vapor stream. Herein also described is a process that utilizes the heat exchanger disclosed herein. Such a process comprises the separation of a volatile component from a non-volatile component in a mixture. In some cases, the non-volatile component comprises a salt or a sugar and the volatile component comprises water.Type: ApplicationFiled: November 11, 2011Publication date: May 17, 2012Inventors: Mark T. HOLTZAPPLE, Jorge R. Lara
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Publication number: 20120085635Abstract: An apparatus and method for the distillation of ocean and brackish water that includes insulation means for preventing heat from escaping to the atmosphere is disclosed. The insulation means comprises a second wall surrounding the basic assemblies of a desalination system in which the space between the second wall and basic assemblies is under low partial vacuum and is partially or totally filled with an insulation material for structural support. The system provides a means for flash evaporation of heated input water and condensing the resultant vapors into pure distilled water. A means for recapturing and using the heat of condensation as well as heat from the salt byproduct to preheat the input contaminated water is also disclosed.Type: ApplicationFiled: October 11, 2010Publication date: April 12, 2012Inventor: JOEL HAYNES
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Patent number: 8154138Abstract: An electrical generating assembly 10 which may be selectively used in combination with and/or as part of a municipal wastewater treatment facility 12 and which allows the wastewater treatment facility 12 to generate electrical energy 48, 62, 13 as received wastewater 14 is cleaned according to a plurality of diverse energy generating strategies.Type: GrantFiled: December 7, 2010Date of Patent: April 10, 2012Inventors: Subramaniam Ganesan, Christopher J. Kobus, John Gerard Chupa
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Patent number: 8097128Abstract: An efficient flash evaporation water purification system located at a hydrocarbon well site. An internal combustion engine uses hydrocarbon fuel from the well and drives a pump to pressurize production water from the well. The engine also generates thermal energy used to preheat the production water. An electrical generator is also driven by the engine to produce electrical power for the water purification system, as well as produce AC power for off-site consumers.Type: GrantFiled: May 31, 2008Date of Patent: January 17, 2012Inventor: Raymond C. Sherry
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Patent number: 8083942Abstract: The present disclosure provides methods and systems for purifying liquids. In a particular implementation, the system includes a forward-osmosis unit for diluting a water source for a downstream desalination unit. A pretreatment unit may be located hydraulically upstream of the desalination unit, such as upstream or downstream of the forward-osmosis unit. In certain embodiments, the system includes an extraction unit for extracting a relatively easily extractable osmotic agent from an osmotic draw solution. The system may include one or more forward-osmosis units downstream of the desalination unit for diluting a concentrated brine stream produced by the desalination unit. In particular embodiments, a downstream forward-osmosis unit uses the concentrated brine stream as an osmotic agent, such as to extract water from seawater or brackish water. Another downstream forward-osmosis unit may use impaired water as a feed stream.Type: GrantFiled: December 6, 2005Date of Patent: December 27, 2011Assignee: Board of Regents of the Nevada System of Higher Education, on Behalf of the Universary of Nevada, RenoInventors: Tzahi Y. Cath, Amy E. Childress
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Patent number: 8080138Abstract: This invention describes a low temperature, self-sustainable desalination process operated under natural vacuum conditions created and maintained by barometric pressure head.Type: GrantFiled: December 12, 2007Date of Patent: December 20, 2011Assignee: Arrowhead Center, Inc.Inventors: Nagamany Nirmalakhandan, Veera Gnaneswar Gude
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Patent number: 8080166Abstract: A multiphase separation system utilized to remove contaminants from fluids includes a pre-filtering module for filtering a contaminated fluid to provide a filtered contaminated fluid. A condenser module receives the filtered contaminated fluid and a contaminated gas phase for condensing the contaminated gas phase to a contaminated liquid. A phase reaction chamber converts the filtered contaminated fluid to a contaminated mist wherein the mist is subjected to a low energy, high vacuum environment for providing a first change of phase by separating into a contaminated gas phase and a liquid mist phase. The contaminated gas phase is carried out of the phase reaction chamber by a carrier air. A vacuum pump provides the low energy, high vacuum environment in the phase reaction chamber and delivers the contaminated gas phase to the condenser module for condensation providing a second change of phase.Type: GrantFiled: October 5, 2009Date of Patent: December 20, 2011Assignee: Liquid Separation Technologies and Equipment, LLCInventor: Wayne W. Spani
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Publication number: 20110290636Abstract: A method and system for managing heat energy in a fluid purification system is provided. Initially, air is compressed using one or more compressors to obtain a compressed hot air. Then one or more fluids are purified using the heat energy associated with the compressed hot air in one or more fluid purification units thereby releasing a compressed cooled air. One or more hot purified fluids are stored in one or more fluid storage tanks obtained in response to the purification of the one or more fluids. Thereafter, the compressed cooled air is heated using a heat energy associated with the one or more hot purified fluids to obtain a heated compressed air. Subsequently, one or more turbines are operated using heat energy associated with the heated compressed air to obtain an expanded cooled air. The expanded cooled air is utilized for cooling.Type: ApplicationFiled: May 25, 2010Publication date: December 1, 2011Applicant: KING ABDUL AZIZ CITY FOR SCIENCE AND TECHNOLOGYInventors: Mazen Abdullah BA-ABBAD, Hany Abdulrahman AL-ANSARY