Flash Vaporization Of Distilland Patents (Class 203/88)
  • Publication number: 20150133707
    Abstract: A process (10) to separate a multi-component hydrocarbon stream (26) comprising ethylene, at least one polymer and other components includes flashing the multi-component hydrocarbon stream in a first flash stage (12) from an elevated pressure of more than 30 bar(a) and an elevated temperature in the range of 150° C. to 185° C. to a flash pressure in the range of 10 bar(a) to 30 bar(a), producing a first ethylene-containing vapour overheads product (28) at a pressure in the range of 10 bar(a) to 30 bar(a) and a first flash stage bottoms product (30.1) which includes some ethylene, the at least one polymer and some of the other components. The flash pressure and the elevated temperature of the multi-component hydrocarbon stream (26) are selected such that the first flash stage bottoms product (30.1) has a concentration of the at least one polymer of less than 5% by mass to render the viscosity of the first flash stage bottoms product (30.1) at the temperature of the first flash stage bottoms product (30.
    Type: Application
    Filed: May 8, 2013
    Publication date: May 14, 2015
    Inventors: Denise Louisette Venter, Natasha Brigman, Tyrone Mcknight, Kevin Blann, Stephen John Evans
  • Patent number: 9017522
    Abstract: A process to separate a multi-component hydrocarbon stream which includes ethylene and other components with at least some of the components being present in a number of phases, is provided. The process includes in a first flash stage, flashing the multi-component hydrocarbon stream, from an elevated pressure and temperature to a pressure in the range of 10-18 bar(a), producing a first ethylene-containing vapor stream at a pressure in the range of 10-18 bar(a) and a multi-phase stream which includes some ethylene. In a second flash stage, the multi-phase stream is flashed to a pressure of less than 6 bar(a), producing a second vapor stream at a pressure of less than 6 bar(a) and a bottoms stream. The first ethylene-containing vapor stream is removed from the first flash stage, the second vapor stream is removed from the second flash stage and the bottoms stream is removed from the second flash stage.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: April 28, 2015
    Assignee: Sasol Technolgy (Proprietary) Limited
    Inventors: Johannes Jochemus Gildenhuys, Andrew Kenneth Stone, William Francis Revelt
  • Patent number: 8952187
    Abstract: The present invention provides certain improvements in methods for processing vegetable oils and apparatus for carrying out such methods. One embodiment provides a method for processing a partially processed oil including glycerides and a volatilizable impurity fraction. The partially processed oil may processed by driving off a first volatiles stream comprising a portion of the glycerides and at least a portion of the volatilizable impurity fraction, leaving a deodorized oil. The first volatiles stream may be introduced into a first condensing chamber and a glyceride-rich, impurity-poor first condensate may be condensed from the first volatiles stream, leaving a glyceride-poor, impurity-rich second volatiles stream. The second volatiles stream may be passed into a second condensing chamber and a glyceride-poor, impurity-rich second condensate may be condensed from the second volatiles stream.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: February 10, 2015
    Assignee: Cargill, Incorporated
    Inventor: Marco Bernardus Kruidenberg
  • Patent number: 8945398
    Abstract: A water recovery process for a steam assisted gravity drainage system for a heavy oil recovery facility, the process comprising a flash drum and a flash drum heat exchanger/condenser, wherein the water recovery process receives hot water produced by a facility at a temperature above the water atmospheric boiling point and cools it to a temperature below the water atmospheric boiling point before transferring it to the remaining section of the water recovery process.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: February 3, 2015
    Assignee: 1nSite Technologies, Ltd.
    Inventor: Kenneth James
  • Patent number: 8936718
    Abstract: A method for recovering base oil from waste lubricating oil by separating base oil range constituents from a waste lubricating oil mixture, thereafter separating higher quality base oil constituents and lower quality base oil constituents from the base oil recovered from the waste lubricating oil mixture and thereafter treating the lower quality base oil constituents to produce marketable base oil. The total base oil produced from a waste lubricating oil mixture by this process is greater than the quantity producible by previous processes using only base oil separation from the waste lubricating oil mixture or processes which use only treatment of the base oil recovered from the waste lubricating oil mixture to produce the product base oil.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: January 20, 2015
    Assignee: Verolube, Inc.
    Inventor: Martin R. MacDonald
  • Publication number: 20140353138
    Abstract: The invention relates to a process for vacuum distillation of a hydrocarbon stream comprising i) passing a hydrocarbon stream into a preflash vessel maintained under conditions to separate the hydrocarbon stream into a preflash liquid and a preflash vapor, ii) passing the preflash liquid into a vacuum furnace maintained under conditions to heat and partly vaporize the preflash liquid, iii) passing the heated furnace effluent into a zone located in the lower part of a vacuum distillation column maintained under fractionating conditions, and iv) passing the preflash vapor into the vacuum distillation column into a further zone located in the lower part of the vacuum distillation column. The invention also relates to a high vacuum unit (HVU) configured to perform the vacuum distillation process.
    Type: Application
    Filed: January 15, 2013
    Publication date: December 4, 2014
    Inventors: Amit Sureshrao Amale, Edmundo Steven Van Doesburg, Peter Mervyn Wilkinson
  • Publication number: 20140283717
    Abstract: Processes for converting organic material into renewable fuel products. A feedstock containing organic material is processed at an elevated pressure and temperature to lyse, decarboxylate, and carbonize cell structures. A portion of the processed slurry may be recirculated and mixed with cool, pressurized feedstock prior to reaching a mechanical mixing device to preheat and reduce the viscosity of the feedstock. The pressure and temperature are reduced, which may occur simultaneously to flash volatile materials, such as ammonia, out of the slurry, thereby reducing the presence of the materials in the final product and allowing recovery of the materials. The processed slurry may be treated with a halide to reduce mercury emissions in the final product. The treated slurry is mechanically and thermally dewatered resulting in a renewable fuel product in dried particulate or pelletized form that is a viable energy source having a positive heating value.
    Type: Application
    Filed: June 4, 2014
    Publication date: September 25, 2014
    Applicant: SGC Advisors, LLC
    Inventors: Kevin M. Bolin, James R. Miller
  • Publication number: 20140166263
    Abstract: Systems and methods generate steam in hydrocarbon recovery operations and may further enable emulsion separation and product upgrading. The methods rely on indirect boiling of water by contact with a thermal transfer liquid heated to a temperature sufficient to vaporize the water. Examples of the liquid include oils, recovered hydrocarbons, liquid metals and brine. Heating of the liquid may utilize circulation of the liquid across or through a furnace, heat exchangers, or a gas-liquid contactor supplied with hot gas. Further, a solvent for bitumen introduced into the water may also vaporize upon contact with the thermal transfer liquid.
    Type: Application
    Filed: December 5, 2013
    Publication date: June 19, 2014
    Applicant: CONOCOPHILLIPS COMPANY
    Inventors: Peter N. SLATER, Christopher R. COPELAND
  • Patent number: 8747621
    Abstract: A process for the rectification of mixtures of high-boiling air- and/or temperature-sensitive substances which require a high separation efficiency is proposed, in particular a process for the working-up of a VE- or VEA-containing product stream. The process includes a first purification stage to separate low-boiling products and unspecified isomers of the useful product from the product stream virtually without loss of useful product and a second purification stage for removing the useful product in a stream having a purity of >97% by weight and a further stream having a purity of >92% by weight.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: June 10, 2014
    Assignee: DSM IP Assets B.V.
    Inventors: Juan Herguijuela, Werner Pietzonka, Angela Wildermann, Thomas Wolf
  • Patent number: 8691054
    Abstract: The present invention provides a configuration of a multi stage flash cross tube evaporator wherein flash stages are arranged in a plurality of at least two tiers with a first flash stage to which a heated solution is fed, a plurality of intermediate flash stages and a last flash stage from which the concentrated solution is discharged in each tier, wherein the flash stages in each tier are in a serial flow communication and the flash stages of each tier are in parallel flow communication to the flash stages in the other tier(s). Such configuration allows to minimize the size of the tube bundles, flash stages and evaporator shell and consequently minimizing evaporator weight and cost.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: April 8, 2014
    Inventor: Friedrich Alt
  • Publication number: 20140048408
    Abstract: A tailings solvent recovery unit (TSRU) recovers a solvent from a solvent diluted tailings and includes a separation apparatus which has a flash vessel, tailings outlet, solvent outlet and an inlet spray system for supplying the diluted tailings to the flash vessel. The spray nozzle system may include multiple nozzles arranged around the periphery of the flash vessel for flash-atomization over its cross-section of the flashing chamber, a nozzle sized and configured to provide choked flow of the diluted tailings, multiple nozzles each being operable in an on/off mode to regulate a total feed flow, or multiple nozzles associated with a distributor and multiple feed conduits.
    Type: Application
    Filed: April 4, 2012
    Publication date: February 20, 2014
    Applicant: FORT HILLS ENERGY L.P.
    Inventors: Shawn Van Der Merwe, Thomas Hann
  • Patent number: 8652304
    Abstract: The present invention is directed to an enhanced process for separating dissolved and suspended solids from valuable or harmful liquids and more particularly to improving the operational aspects and separation efficiency of treating certain water miscible fluids including those used for oil and gas processing such as glycols, as well as automobile and aircraft fluids, that have become contaminated with dissolved and/or suspended solid matter.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: February 18, 2014
    Assignees: Prime Services Trustee Limited, VBW Trustees No. 2 Limited
    Inventor: Craig Nazzer
  • Publication number: 20130299337
    Abstract: The invention relates to a method for compressing at least two gas streams by means of a single compressor that does not support a fluctuation in flow rate and/or pressure above a critical percentage, said method being characterized in that at least one of the gas streams is fed into a buffer space before being fed into the single compressor.
    Type: Application
    Filed: September 12, 2011
    Publication date: November 14, 2013
    Applicant: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Arthur Darde, Alain Briglia, Xavier Traversac, Christophe Szamlewski
  • Patent number: 8545681
    Abstract: 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: Grant
    Filed: December 23, 2009
    Date of Patent: October 1, 2013
    Assignee: General Electric Company
    Inventors: Andrew Philip Shapiro, Nishith Vora, Ching-Jen Tang, AliciA Jillian Jackson Hardy, Douglas Westerkamp
  • Patent number: 8506766
    Abstract: A method for recovering acetic acid from an aqueous feed stream containing acetic acid and, in particular, a stream generated during terephthalic acid production includes feeding a water-rich feed stream to a liquid-liquid extraction column, which includes a guard bed near the top thereof for conversion of alcohol within the feed stream by reaction with acetic acid to the corresponding ester, and removing residual water from acetic acid in an azeotropic distillation column by feeding water-poor feed streams from the extraction column to the distillation column at a height at which the mixture has a similar water concentration. The liquid-liquid extraction column produces an extract of an extraction solvent and acetic acid which is sent to the azeotropic distillation column to separate residual water and acetic acid.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: August 13, 2013
    Assignee: AMT International Inc.
    Inventors: Kuang-Yeu Wu, Ji-Young Jang, Karl Tze-Tang Chuang
  • Patent number: 8496787
    Abstract: A method and apparatus for eliminating brine effluent from desalination plants by distillation, is disclosed. To eliminate the brine the salt is converted into a solid and all of the water in the brine is converted to distilled water. The key to achieving this is reducing or eliminating the scale formation in the heating chamber. In one embodiment the process can be used to reduce or eliminate scale formation in a vapor compression sea water desalinization system and there-by use this system to produce drinking water. This process requires no chemical additives but relies entirely upon separation of the process of vaporization of the fluid involved, from the process of heating of the fluid. In one embodiment of this apparatus sea water can be desalinated and the resulting products can be dry salt and pure water leaving no brine return to the ocean.
    Type: Grant
    Filed: July 26, 2009
    Date of Patent: July 30, 2013
    Inventor: Michael John Lord
  • Publication number: 20130153402
    Abstract: A CO2 desorption method and equipment for performing this method is described. More specific, a method for desorbing CO2 from an absorption fluid without involving a traditional stripper but instead using a heat exchanger as a flash-tank is disclosed. Further described is the utilization of cooling heat from a condenser for cooling the lean absorbent fluid.
    Type: Application
    Filed: June 1, 2011
    Publication date: June 20, 2013
    Applicant: Statoil Petroleum AS
    Inventor: John Arild Svendsen
  • Patent number: 8460509
    Abstract: A fluid evaporation system includes a housing bounding a fluid reservoir and an air flow path that is disposed over top of the fluid reservoir. The housing has an inlet opening and a spaced apart outlet opening that both provide communication between the outside environment and the air flow path. A fan is positioned to draw the air out of the air flow path through the outlet opening. A baffle projects into the air flow path at a location between inlet opening and the outlet opening so as to constrict the area of the air flow path thereat. A plurality of spray nozzles are positioned within air flow path between the baffle and the first end of the housing. A pump is configured to draw fluid from the reservoir and deliver it to the plurality of spray nozzles.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: June 11, 2013
    Assignee: Total Water Management, LLC
    Inventors: Janos I. Lakatos, Edward Clay Slade, Clayton R. Carter
  • Patent number: 8430993
    Abstract: A fluid evaporation system includes a housing bounding a fluid reservoir and an air flow path that is disposed over top of the fluid reservoir. The housing has an inlet opening and a spaced apart outlet opening that both provide communication between the outside environment and the air flow path. A fan is positioned to draw the air out of the air flow path through the outlet opening. A baffle projects into the air flow path at a location between inlet opening and the outlet opening so as to constrict the area of the air flow path thereat. A plurality of spray nozzles are positioned within air flow path between the baffle and the first end of the housing. A pump is configured to draw fluid from the reservoir and deliver it to the plurality of spray nozzles.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: April 30, 2013
    Assignee: Total Water Management, LLC
    Inventors: Janos I. Lakatos, Edward Clay Slade, Clayton R. Carter
  • Patent number: 8372248
    Abstract: 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: Grant
    Filed: January 13, 2012
    Date of Patent: February 12, 2013
    Inventor: Raymond C. Sherry
  • Patent number: 8328995
    Abstract: A method and a system to produce a distillate stream from an aqueous stream containing at least one dissolved solid by a thermal distillation process using at least one of a heated aqueous stream from a turbine system intercooler and a stack heater as a heat source.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: December 11, 2012
    Assignee: Black & Veatch Holding Company
    Inventor: Michael J. Eddington
  • Patent number: 8328994
    Abstract: Processes for the recovery of ethanol, useful as a fuel, from various cellulosic feedstock materials fermented to produce ethanol-containing beer are disclosed. The present invention provides a method and a system for ethanol recovery from highly viscous fermented citrus waste biomass. The systems overcome various challenges, including effectively stripping the ethanol from biomass beer in an energy efficient and economical manner that may allow for the further dehydration of the ethanol/water mix in a traditional rectifier distillation column. In certain embodiments, a series of flash stages and beer stripping columns are capable of operating with highly viscous slurries and/or feedstocks containing high levels of solids.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: December 11, 2012
    Inventor: David A. Stewart
  • Patent number: 8277614
    Abstract: 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: Grant
    Filed: September 29, 2008
    Date of Patent: October 2, 2012
    Assignee: King Abdulaziz University
    Inventor: Majed Moalla Alhazmy
  • Patent number: 8216431
    Abstract: 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: Grant
    Filed: April 23, 2008
    Date of Patent: July 10, 2012
    Inventor: Mark Edward Tellam
  • Patent number: 8202403
    Abstract: A distillation tower for use in a petrochemical or petroleum operation effects liquid and vapor separation by using centrifugal force applied to the feed introduced into a ring from a tangential inlet. The feed is separated into a liquid component that flows into the bottoms section of the tower and a vapor component that flows upwardly through the core of the ring to a wash zone in the tower. De-entrainment devices are provided in the core so that the vapor swirling upwardly impacts the devices and any remaining entrained liquid is separated from the vapor. As a result, overflash with decreased resid can be collected from the wash zone and used as feed suitable for a fluid catalytic cracking operation, for example.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: June 19, 2012
    Assignee: ExxonMobil Research & Engineering Company
    Inventors: Theodore Sideropoulos, Arun K. Sharma
  • Patent number: 8097128
    Abstract: 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: Grant
    Filed: May 31, 2008
    Date of Patent: January 17, 2012
    Inventor: Raymond C. Sherry
  • Patent number: 8092656
    Abstract: A process for treatment of an aqueous stream to produce a low solute containing distillate stream and a high solute/solids containing blowdown stream utilizing a method to increase the efficiency of an evaporator while providing an essentially scale free environment for the heat transfer surface. Multi-valent ions and non-hydroxide alkalinity are removed from aqueous feed streams to very low levels and then the pH is increased preferably to about 9 or higher to increase the ionization of low ionizable constituents in the aqueous solution. In this manner, species such as silica and boron become highly ionized, and their solubility in the concentrated solution that is present in the evaporation equipment is significantly increased. The result of this is high allowable concentration factors and a corresponding increase in the recovery of high quality reusable water with essentially no scaling.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: January 10, 2012
    Assignee: Aquatech International Corporation
    Inventors: Keith R. Minnich, Ramkumar Karlupudi, Richard M. Schoen
  • Patent number: 8083901
    Abstract: A de-entrainment device separates entrained liquid from vapor in a fluid stream that flows through a chimney tray in a distillation tower. The separated liquid is collected and shielded from the fluid stream to prevent re-entrainment of the liquid in the vapor flowing upward into the tower. The chimney tray includes risers with hats that have gutters to guide liquid toward the tray deck, channels to collect and drain liquid from the top of the hats to the tray deck, and baffles extending from the risers to shield the liquid collected on the tray deck from the vapor flow.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: December 27, 2011
    Assignee: ExxonMobil Research & Engineering Company
    Inventors: Arun K. Sharma, Theodore Sideropoulos, Berne K. Stober, Brian D. Albert, Alvin U. Chen, Vikram Singh
  • Publication number: 20110308931
    Abstract: The present invention relates to a feed distribution device in separation columns and a method of operation. In particular it relates to distillation columns in which the feed stream is substantially liquid phase, or a mixture of gas and liquid upstream of the column, but where the feed vaporizes or vaporizes prior to or as it enters the column. More specifically, the feed distribution device contains a plurality of opening which allow the feed to vaporize prior to or as it enters the column and where the openings are maintained in critical condition during operation. Significant advantage is achieved through the implementation and use of the present feed distribution devices.
    Type: Application
    Filed: June 27, 2011
    Publication date: December 22, 2011
    Applicant: Neste Oil Oyj
    Inventor: Esa Tamminen
  • Patent number: 8080140
    Abstract: A process for debottlenecking a system for the separation of a conjugated diolefin the system including a first extraction section having an extractive distillation column and a stripping column and a second extraction section. The process includes the steps of withdrawing a first portion of an extract from the extractive distillation column, the extract having at least the first portion and a second portion, and transferring the first portion of the extract to a flash/separation vessel; separating the first portion of the extract into a vapor phase and a liquid phase by flashing in a flash/separation vessel; and combining the liquid phase of the separated first portion of the extract with the second portion of the extract to produce an extract feed for further processing. A system and process for the separation of a conjugated diolefin from a C4- or C5-hydrocarbon mixture containing the conjugated diolefin and higher acetylenes are also provided.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: December 20, 2011
    Assignee: Exxonmobil Chemical Patents Inc.
    Inventors: May-Ru Chen, Micheal E. Smith, Ross T. Garner
  • Patent number: 8075740
    Abstract: A system for treating feedwater includes a fluidized bed heat exchanger unit connected to receive feedwater and a flash concentrator column connected to receive feedwater discharged from the fluidized bed heat exchanger unit. A spray dryer is provided to receive a solids/liquid slurry discharged from the flash concentrator column. Feedwater can be treated by converting dissolved solids in the feedwater to suspended solids, vaporizing a portion of the feedwater to produce a solids/liquid slurry, and separating solids from the solids/liquid slurry.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: December 13, 2011
    Assignees: AHT Solutions, LLC, Watervap, LLC
    Inventors: Robert E. Bailie, Robert R. Wright
  • Publication number: 20110278151
    Abstract: A method for recovering base oil from waste lubricating oil by separating base oil range constituents from a waste lubricating oil mixture, thereafter separating higher quality base oil constituents and lower quality base oil constituents from the base oil recovered from the waste lubricating oil mixture and thereafter treating the lower quality base oil constituents to produce marketable base oil. The total base oil produced from a waste lubricating oil mixture by this process is greater than the quantity producible by previous processes using only base oil separation from the waste lubricating oil mixture or processes which use only treatment of the base oil recovered from the waste lubricating oil mixture to produce the product base oil.
    Type: Application
    Filed: May 16, 2011
    Publication date: November 17, 2011
    Inventor: Martin R. MacDonald
  • Patent number: 8021519
    Abstract: A system for distilling sea or brackish water includes a feed water arrangement for supplying feed water from a feed water source to one or more flashing stages. Each flashing stage has a water flash evaporator for vaporizing at least part of the water therein, and a condenser for receiving the vapour and converting at least a part of the vapour into distilled water. A heat storage arrangement provided with a heat generating source for storing heat energy is used to heat a fluid medium flowing through it. A heat exchange arrangement receives the hot fluid medium and transfers heat to a stream of vapour flowing under pressure from each flashing stage. The vapour leaving the heat exchange arrangement being at a raised temperature is arranged to be condensed into water at the condenser and to transfer some of its latent heat to the evaporator.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: September 20, 2011
    Inventor: Gregory Mark Paxton
  • Patent number: 7981253
    Abstract: An improved de-entrainment device for use in distillation towers, especially vacuum distillation towers used for fractionating petroleum atmospheric resids is in the form of a baffle which is to be located in the portion of the tower below the feed zone and at the top of the flash zone. The baffle is in the form of an apertured plate above the stripping zone and in its preferred form comprises number of radial fins or blades, resembling a static fan with openings between the fins to permit vapors from the lower portions of the tower to pass upwards through the baffle with a minimal pressure drop. The fins of the baffle are preferably oriented at an angle between 30° and 60° away from the incoming feed so that the incoming feed stream skims over the top edges of the fins.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: July 19, 2011
    Assignee: ExxonMobil Research & Engineering Company
    Inventors: Arun K. Sharma, Theodore Sideropoulos, Rutton D. Patel, Brian D. Albert, Alvin U. Chen
  • Patent number: 7935228
    Abstract: A process to reduce emissions discharged from a natural gas processing system wherein the processing system includes a glycol dehydrator for absorbing water, moisture and absorbable hydrocarbons, a reboiler for heating water rich glycol, a still column in communication with the reboiler and a reflux condenser. The process includes the steps of directing vapors and gases from the still column and reflux condenser to a condenser in order to condense vapors to liquid. The gases and liquids from the condenser are directed to a condensate separator in order to separate by gravity. Non-condensible vapors and water from the condensate separator are delivered to a vaporization chamber immersed in the reboiler. Water is re-vaporized into steam and permitted to mix with non-condensible vapors in the vaporization chamber. The steam and non-condensible vapors are inducted into a combustion zone in a firetube in the reboiler. The hydrocarbons in the vapors are combusted in the firetube.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: May 3, 2011
    Assignee: Process Equipment & Service Company, Inc.
    Inventor: James E. Rhodes
  • Publication number: 20100320073
    Abstract: One embodiment of a method of water treatment comprising straining fractionated water to remove particles larger than one micron in diameter, decanting the strained fractionated water to remove surfactants and oil, evaporating the decanted water to provide concentrated brine and water vapor, and condensing the water vapor.
    Type: Application
    Filed: January 25, 2010
    Publication date: December 23, 2010
    Applicant: NG INNOVATIONS, INC.
    Inventor: Donald Booth
  • Patent number: 7850826
    Abstract: The present invention provides a multi stage flash long tube evaporator with flash stages arranged in a plurality of at least three tiers, wherein each tier is divided into a plurality of at least two flash stages and a plurality of at least three tube bundles are arranged in parallel and in a longitudinal direction in each tier. This configuration allows to minimize the evaporator shell volume, shell surface, foot print and weight, minimizing the cost of an evaporator and other related plant cost. This configuration is in particular suitable for large evaporator unit capacities.
    Type: Grant
    Filed: February 18, 2008
    Date of Patent: December 14, 2010
    Inventor: Friedrich Alt
  • Patent number: 7708865
    Abstract: According to one embodiment of the invention, a vapor-compression evaporation system includes a plurality of vessels in series each containing a feed having a nonvolatile component, a mechanical compressor coupled to the last vessel in the series and operable to receive a vapor from the last vessel in the series, a pump operable to deliver a cooling liquid to the mechanical compressor, a tank coupled to the mechanical compressor and operable to separate liquid and vapor received from the mechanical compressor, a plurality of heat exchangers coupled inside respective ones of the vessels, the heat exchanger in the first vessel in the series operable to receive the vapor from the tank, at least some of the vapor condensing therein, whereby the heat of condensation provides the heat of evaporation to the first vessel in the series, and wherein at least some of the vapor inside the first vessel in the series is delivered to the heat exchanger in the next vessel in the series, whereby the condensing, evaporating, a
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: May 4, 2010
    Assignees: Texas A&M University System, StarRotor Corporation
    Inventors: Mark T. Holtzapple, Gary P. Noyes, George A. Rabroker
  • Patent number: 7695594
    Abstract: A distillation process for separating a target component from a mixture containing a solvent and the target includes the steps of flashing off a vapor mixture of said solvent and said target in an evaporator, separating said target from said vapor mixture, and providing additional solvent to said evaporator to maintain the temperature of said evaporator substantially below the boiling point of said target. The process also includes the step of removing accumulated non-volatile components from said evaporator by allowing the non-volatile components to precipitate from a mixture of the target and the solvent.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: April 13, 2010
    Inventor: Arthur F. Clark
  • Patent number: 7678227
    Abstract: The present invention provides tube bundle configurations for multi stage flash cross tube type evaporators using concepts with parallel and counter current coolant flow. Those tube bundle configurations allow to build the evaporators more compact and provide the possibilities to lower the thermal and electrical energy consumption for a multi stage flash desalination plant by maintaining or reducing the distilled water generation cost as achievable with cross tube evaporators utilizing single pass tube bundles in serial flow communication.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: March 16, 2010
    Inventor: Friedrich Alt
  • Patent number: 7666282
    Abstract: The invention is a process for the purification of ethanol. In one embodiment the process includes boiling a degassed beer feed (106) in a pre-boiler (110) to provide a vapor by-pass fraction (112) that by-passes the conventional beer column and is fed into the rectifier column (124). The process allows free capacity in the rectifier column of new or established plants to be filled by ethanol-water vapor and/or condensate streams that do not originate from the beer column.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: February 23, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Robert G. Sylvester, Stephen Thomas Breske, David A. Culver, Bruce M. Vrana
  • Patent number: 7628893
    Abstract: A method and an apparatus is provided for the separation of liquid-liquid and liquid-solids compositions by flash evaporation in a heated vacuum chamber. The compositions are injected through an atomizing spray nozzle having a spray cone downward of about 30 to 150 degrees. The compositions are preheated and injected under pressure into the preheated vacuum evaporation chamber. The vaporized liquid that is formed is collected in a condenser which draws the vapors by vacuum or pressure differential. Any solids are collected at the bottom of the vacuum chamber as semi-dry or dry solids.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: December 8, 2009
    Assignees: Pure Energy Technology Co, PPT Research Inc.
    Inventors: David William Bonser, Irl E. Ward, Alan R. Duly
  • Patent number: 7566383
    Abstract: A method and system for recovering heat from a pretreated hot biomass stream is described. The method and system for heat recovery includes a flash cooler connected to a direct contact condenser. A liquid portion of the hot biomass stream flashes into vapors upon the hot biomass stream entering the flash cooler. The flashed vapors are transferred to the direct contact condenser. The flashed vapors and an incoming cold biomass stream subsequently come into contact with each other in the direct contact condenser, thereby causing heat to be transferred from the hot biomass stream to the cold biomass stream. As the heat transfer occurs, the flashed vapors condense onto the surface of the cold biomass.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: July 28, 2009
    Assignee: Purdue Research Foundation
    Inventors: Rollo J. Everett, Nathan S. Mosier, Jerry L. Weiland, Gary Welch, Michael R. Ladisch
  • Patent number: 7465376
    Abstract: The invention provides for the removal of impurities from treatment fluid including a base liquid and a variety of impurities contained in the base liquid by conveying the treatment fluid to at least one preheating separating device, including a preheating heat exchanger and a separator unit, before the admixture of a carrier gas to the treatment fluid. The treatment fluid is preheated by the preheating heat exchanger to a temperature below the boiling temperature of a base liquid so that the liquid impurities with lower boiling temperatures than the base liquid are evaporated and expelled thermally, whereby the evaporated and expelled impurities are separated in the separator unit of the preheating separator device. The treatment fluid is then evaporated and separated from impurities having a higher boiling point than the base liquid.
    Type: Grant
    Filed: February 9, 2002
    Date of Patent: December 16, 2008
    Inventors: Joachim Neubert, Karl-Ferdinand Staab
  • Publication number: 20080283383
    Abstract: The present invention relates to a method for removing volatile compounds from sparingly volatile fluids by means of rectification using an auxiliary and also to separation methods and chemical reactions in which sparingly volatile fluids are used, the purification of which is effected by means of rectification and using an auxiliary.
    Type: Application
    Filed: March 21, 2006
    Publication date: November 20, 2008
    Applicant: BAYER TECHNOLOGY SERVICES GMBH
    Inventors: Gerhard Ruffert, Oliver Pfohl, Marcus Grun
  • Publication number: 20080275653
    Abstract: Systems, methods and apparatus implementing techniques for separating and/or analyzing fluid mixtures. The techniques employ microfluidic separation devices that include an inlet port for receiving a fluid feed stream, a microscale fluid flow channel in fluid communication with the fluid inlet port, a phase equilibrium control region located along the fluid flow channel for controlling conditions including temperature and/or pressure to provide a thermal equilibrium, a capillary network in the temperature control region, a first outlet port in indirect fluid communication with the fluid flow channel through the capillary network, and a second outlet port in direct fluid communication with the fluid flow channel. A plurality of microfluidic separation devices can be coupled in fluidic communication to provide for separation of complex mixtures. The systems, methods and apparatus can be used to characterize fluid mixtures.
    Type: Application
    Filed: September 14, 2006
    Publication date: November 6, 2008
    Applicant: SYMYX TECHNOLOGIES, INC.
    Inventors: Stephen Cypes, Sam H. Bergh, Damian Hajduk
  • Patent number: 7442348
    Abstract: A sulfur-bearing residue treatment system is provided for the recovery of valuable organic components and the reduction of capital costs and operating costs. The treatment system involves the use of a stripping vessel in conjunction with a heating apparatus. All elements of the treatment system may be coupled together to form one integral piece of equipment.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: October 28, 2008
    Assignee: Rohm and Haas Company
    Inventors: Curtis Instad Carlson, Jr., Michael Stanley DeCourcy, Jamie Jerrick John Juliette, Thomas Albert Kaminski, Nelson Ivan Quiros, Paul Benjamin Schladenhauffen
  • Publication number: 20080202914
    Abstract: A de-entrainment device separates entrained liquid from vapor in a fluid stream that flows through a chimney tray in a distillation tower. The separated liquid is collected and shielded from the fluid stream to prevent re-entrainment of the liquid in the vapor flowing upward into the tower. The chimney tray includes risers with hats that have gutters to guide liquid toward the tray deck, channels to collect and drain liquid from the top of the hats to the tray deck, and baffles extending from the risers to shield the liquid collected on the tray deck from the vapor flow.
    Type: Application
    Filed: February 19, 2008
    Publication date: August 28, 2008
    Applicant: ExxonMobil Research and Engineering Company Law Department
    Inventors: Arun K. Sharma, Theodore Sideropoulos, Berne K. Stober, Brian D. Albert, Alvin U. Chen, Vikram Singh
  • Patent number: 7390380
    Abstract: Incoming wastewater is preheated in a heat exchanger before delivery to a flash chamber through an orifice for flashing into water vapor rising into an upper section of the flash chamber which also has a bottom section into which liquid waste oil or other contaminants settles. Rise of such water vapor into the upper chamber section is induced by a vacuum established therein by a vacuum pump withdrawing the water vapor in a superheated and compressed condition for cooling within a condenser from which the incoming wastewater is delivered to a heat exchanger for preheating. The water vapor during rise into the upper section of the flash chamber is filtered to extract contaminates therefrom while liquefied water vapor thereafter formed therein is collected before the remaining water vapor is cooled into the condensate for collection within a distillate tank from which it is withdrawn for overboard discharge after being monitored for oil content.
    Type: Grant
    Filed: February 11, 2004
    Date of Patent: June 24, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Henry J. Molintas
  • Patent number: 7351312
    Abstract: A vessel is provided for collecting a process stream and fractionating the process stream into a liquid and gas phase in the vessel. Cooling may be provided by an internal bath and/or an external bath. The liquid phase retained in the vessel and the gas phase collected in lots from the vessel may be delivered to a lab for analysis.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: April 1, 2008
    Assignee: UOP LLC
    Inventor: Jessy E. Trucko