Liquid Traps Or Separators Patents (Class 159/31)
  • Patent number: 10272376
    Abstract: A louvered separator for separating water from an air flow is provided which includes a number of vertical slat structures having a constant profile, horizontally spaced from each other so as to form horizontally tortuous separating channels in the spaces between the slats. The slat structures include water-collecting troughs and two separate slats having differing constant profiles; in the air flow direction a foremost front slat and a following back slat. The front slat includes, in the flow direction, a leading edge, a middle area and a trailing edge, and the back slat includes, in the flow direction, a leading edge, a middle area and a trailing edge. The water-collecting trough is limited to the area of the trailing edge of the back slat, so that the front slat entirely, and the back slat for more than a half of its length from the leading edge towards the trailing edge, form only even surfaces to guide the flow.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: April 30, 2019
    Assignee: ALUPRO OY
    Inventors: Vesa Samela, Juha Kivekäs
  • Patent number: 9944873
    Abstract: The add-on system for removing paraffin from a natural gas dehydration system is a method of removing paraffin from the dehydrated TEG. The add-on system for removing paraffin from a natural gas dehydration system processes the cooled and dehydrated TEG through a second heat exchanger, which raises the temperature of the dehydrated TEG to a previously determined temperature. Once the dehydrated TEG is at temperature, the TEG is processed through one or more separators, which separates the paraffin from the dehydrated TEG. The separated paraffin is collected in one or more collection apparatus for disposal while the processed TEG is released to further processing and delivery to the contactor for reuse. The add-on system for removing paraffin from a natural gas dehydration system comprises a second heat exchanger, one or more separators, one or more pumps, one or more collection apparatus, and a plurality of valves.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: April 17, 2018
    Inventor: Phil Belveal, Sr.
  • Patent number: 9920707
    Abstract: The container unit type cogeneration engine generator comprises a long generator container in which an engine and components on a generator main body side including a generator driven by the engine are accommodated, and a short exhaust heat utilizing container in which a boiler that generates steam and hot water for hot-water supply by utilizing exhaust heat of the engine and an exhaust heat utilizing apparatus including a heat exchanger are accommodated. A combination container unit is configured so that shorter walls on one end side of the both containers in a longer direction are positioned on a same straight line, and making both longer walls of the long generator container and the short exhaust heat utilizing container to face each other. Both containers are coupled with a plurality of pipes along the shorter direction of the containers across the facing walls along which the both containers are arranged.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: March 20, 2018
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Tomokazu Yamanaka, Takuya Hirai, Shuichi Shimodaira, Hirokazu Narita, Takeshi Abe
  • Patent number: 9880046
    Abstract: A method and apparatus for determining properties of at least one of a surface or materials adjacent to a portable device. The method includes windowing a segment of the received signal to remove an edge transients, computing the FFT power spectral density of the signal, determining a peak in the spectral energy at a frequency, finding local peaks by determining the difference in the signal amplitude is relation to a pre-determined threshold, and computing harmonic energy according to the local peaks and the difference and determining at least one property of the surface or material.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: January 30, 2018
    Inventors: Amardeep Sathyanarayana, Nitish Murthy, Sourabh Ravindran, Brian Paul Burk
  • Patent number: 9823020
    Abstract: A chlorine bypass device which can cool exhaust gas quickly by mixing extracted exhaust gas with cooling air at high efficiency, to thereby produce fine chloride dust, and increase dust recovery efficiency.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: November 21, 2017
    Inventors: Daisuke Sakaniwa, Junzhu Wang, Hirokazu Shima
  • Patent number: 9452369
    Abstract: The invention relates to a vaporizer comprising a housing, a housing cap, which covers an end of the housing and has a vapor discharge opening, and a heating element, which sits in the housing and protrudes into the housing cap, wherein an annular gap is provided between the heating element and the housing and also between the heating element and the housing cap and connects an inlet opening in the housing to the vapor discharge opening. In accordance with this disclosure, the annular gap has a starting portion, a middle portion and an end portion, wherein the starting portion and the middle portion are arranged in the housing and the end portion is arranged in the housing cap, and wherein the annular gap is wider in the middle portion than in the starting portion.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: September 27, 2016
    Assignee: BorgWarner Ludwigsburg GmbH
    Inventors: Martin Eller, Nicolaus Wulff, Andreas Ruthmann, Tobias Inclan
  • Publication number: 20150041071
    Abstract: A compact evaporator system is provided having a horizontal vapor separator and a horizontal forced circulation heat exchanger utilizing mechanical vapor recompression. The vapor separator has at least one product chamber having at least one product passage configured to receive at least one product. The vapor separator can also have at least one vapor chamber in fluid communication with the at least one product chamber having at least one vapor passage, wherein the at least one vapor chamber has a substantially horizontal orientation. The vapor separate can be configured such that a portion of the at least one product evaporates in the product chamber to produce a vapor that travels into the at least one vapor chamber, residual entrained droplets are removed from the vapor as it flows laterally through the vapor chamber, and the vapor is then discharged through the at least one vapor passage.
    Type: Application
    Filed: August 11, 2014
    Publication date: February 12, 2015
    Inventor: Artur G. Zimmer
  • Publication number: 20140014278
    Abstract: A liquid concentrator having an evaporator assembly and a cyclonic separator includes features designed to improve the performance of the liquid concentrator. A settling chamber is separated from a sump of the cyclonic separator. A liquid inlet opening into a mixing chamber of the evaporator injects wastewater at low pressures. Features to aid in the cleaning of the liquid concentrator include easy open doors and clean water injection ports for cleaning interior portions of the liquid concentrator. In one feature a settling tank is disposed below the cyclonic separator and has a width that is larger than the width of the cyclonic separator. In another variation, the cyclonic separator has a tubular body with an interior that is substantially unobstructed between an inlet from the evaporator assembly and an exhaust outlet. In yet another variation, the cyclonic separator has an upper chamber that is separated from a lower chamber.
    Type: Application
    Filed: July 13, 2012
    Publication date: January 16, 2014
    Inventor: Bernard F. Duesel, JR.
  • Patent number: 8562709
    Abstract: A wire mesh mist collector pad having multiple density zones, the zones being arranged other than to provide a constantly increasing density gradient, provides a reduced pressure drop and increased capacity. For example, the pad can include at least three zones with the zones arranged so that the density gradient in the direction of gas flow through the pad varies from low to high to low or from high to low to high.
    Type: Grant
    Filed: December 26, 2011
    Date of Patent: October 22, 2013
    Assignee: Amistco Separation Products, Inc.
    Inventor: Kantilal P. Patel
  • Publication number: 20130037223
    Abstract: A liquid concentrator having an evaporator assembly and a cyclonic separator includes features designed to improve the performance of the liquid concentrator. A settling chamber is separated from a sump of the cyclonic separator. A liquid inlet opening into a mixing chamber of the evaporator injects wastewater at low pressures. Features to aid in the cleaning of the liquid concentrator include easy open doors and clean water injection ports for cleaning interior portions of the liquid concentrator.
    Type: Application
    Filed: July 13, 2012
    Publication date: February 14, 2013
    Inventor: Bernard F. Duesel, JR.
  • Patent number: 8246916
    Abstract: Disclosed herein is provided an evaporator/calciner in which hazardous materials, such as radioactive liquids, are converted into chemically stable, solid forms by evaporating, drying and calcination within a single vessel, that can then be sealed and used for long term storage.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: August 21, 2012
    Assignee: Atomic Energy of Canada Limited
    Inventors: Kenneth James Franklin, Andrew Donald Kettner, Bruce Wayne Hildebrandt, Howard Charles Jessup, Jr.
  • Publication number: 20100034697
    Abstract: Apparatus for concentrating a vapor including an optional vaporizer, a vapor flow conduit; a counter flow conduit; and an optional humidity controller; wherein at least a portion of the vapor flow conduit and counter-flow conduit define respective opposed sides of a membrane. Also, a method of producing a concentrated active from a solution including an active in a solvent and having a first active-to-solvent ratio, the method comprising the steps of: (1) vaporizing the solution to form a vapor wherein the concentration of active is at about said first ratio, (2) providing a flow of the vapor to a first side of a membrane; and (3) providing an alternate flow of a gas to a second side of the membrane whereby to increase said first active-to-solvent ratio on the first side to a second active-to-solvent ratio greater than the first active-to-solvent ratio.
    Type: Application
    Filed: January 31, 2008
    Publication date: February 11, 2010
    Inventors: Ron Weinberger, Michael Potas
  • Patent number: 7540936
    Abstract: An evaporator for receiving waste fluid stream and producing separate streams of an evaporated fluid and a condensate liquid for use in industrial waste treatment has a curved pathway bounded by a casing having an inlet port through which the waste fluid enters the casing. The casing defines a pathway having a flow direction therein through which the waste fluid stream flows, and within which casing the evaporated fluid is produced. The casing has a drain beneath the pathway through which the condensate passes, and an outlet through which the evaporated fluid is drawn. A series of fins of elongate aerofoil cross-section are located in and extend across the pathway in the flow direction of the waste fluid stream flowing along the pathway. The casing is curved and the fins are arranged parallel to a tangent of the curve.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: June 2, 2009
    Assignee: Industrial Waste Treatment Limited
    Inventor: Richard Lilleystone
  • Publication number: 20090025885
    Abstract: The invention relates to an evaporation apparatus for depositing material on a vertically oriented substrate (10). The apparatus comprises at least one evaporation crucible (100) with the evaporation crucible (100) having an evaporation surface (120) for evaporating the material (300) wherein the evaporation surface is inclined at an inclination angle (?) in relation to the horizontal. The invention further provides a method for evaporating a substrate with the steps of providing a vertically oriented substrate (10); providing a crucible having an evaporation surface (120) for evaporating a material; evaporating the material on the evaporation surface (120) that is inclined at an inclination angle (?) in relation to the horizontal.
    Type: Application
    Filed: July 17, 2008
    Publication date: January 29, 2009
    Inventors: Wolfgang BUSCHBECK, Michael KOENIG, Stefan KELLER, Stefan BANGERT
  • Publication number: 20040045682
    Abstract: A cogeneration waste heat evaporation system and method for wastewater treatment utilizing waste heat recovery from, e.g., a gas turbine, is described, comprising recovering engine waste heat by capturing and routing such waste heat through a unique evaporator system. Such evaporation system may include one or more of a bypass throttle system, which controls the flow such exhaust through one or both of a bypass duct and an evaporator duct, at least one electrical thermal resistance heater operated to modulate demand on the engine, and thus, modulate output of waste heat into the evaporation system and/or to provide additional heat for the evaporation and/or drying process, and a downstream afterburner utilized in conjunction with a gas turbine engine.
    Type: Application
    Filed: April 24, 2003
    Publication date: March 11, 2004
    Inventor: Randal Liprie
  • Patent number: 6656327
    Abstract: An evaporation product discharged from a lower end a falling-film evaporator enters a downpipe (7), makes a 180° turn at a bottom of the downpipe, and moves upward through an annular rising channel (9) defined between the downpipe and an intermediate housing (10). As the evaporation product moves along a spiral path (12) defined by the spiral fins, centrifugal forces urges water droplets and impurities to a radial outward periphery where they pass through openings (13) in the intermediate shell as pure steam continues through the spiral path and out a pure steam outlet (21). A cooling jacket (15) chills a peripheral wall of an outer shell (14) adjacent the holes such that the discharged water droplets condense on the outer shell and flow down a reject water return path to a reject water reservoir at the bottom of the outer shell.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: December 2, 2003
    Assignee: Steris Europe, Inc. Suomen Sivuliike
    Inventor: Mauri J. Salmisuo
  • Patent number: 6648938
    Abstract: An apparatus for cleaning a fluid in the form of steam from a circuit in which a given flow of water vapour is generated and led to a separator (1) and thence to a cooler or a condenser or it is discharged into the atmosphere, said separator (1) comprising a closed volume (2), a steam inlet duct (4) and a steam outlet duct (5) opposite one another on said closed volume (2) incorporating a tabular element (3) lying below the vertical and sloping downward in relation to said steam inlet (4), forming a channel (6) at the bottom with a discharge pipe (7) which moves the liquefied substances and particles adhered to said tabular element (3) to the bottom of said closed volume (2) from where they are removed through drains (8).
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: November 18, 2003
    Inventor: Nicasio Paulino Mora Vallejo
  • Patent number: 6332949
    Abstract: A process for concentrating spent sulphuric acids particularly sulphuric acids which arise during the nitration of hydrocarbons with nitric acid in the presence of sulphuric acid, wherein single- or multi-stage concentration is effected under vacuum.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: December 25, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heiko Beckhaus, Jürgen Münnig, Wolfgang Lorenz, Karl Schumacher
  • Patent number: 6254734
    Abstract: A process for the evaporation of an available warm or hot liquid under a vacuum by applying a pressure drop thereon initiating flash-down evaporation, and followed by further flash-down evaporation under an applied pressure gradient whereby the residual liquid is raised by the vapor produced to an elevation sufficient for subsequently discharging the residual liquid from vacuum without a pump; and by separating the vapor phase from the residual liquid phase before condensing the vapor produced into distilled liquid.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: July 3, 2001
    Inventor: Hugo H Sephton
  • Patent number: 6213197
    Abstract: A sorption unit for air-conditioning technology apparatus with sheets for heat emission, past which water vapor is passed. The sheets are provided with zeolite, that forms string-shaped profiled bodies which are designed to have surface contact with the sheets. Channels for vapor passage are defined between bodies arranged one beside the other. A buffer section and a condenser/evaporator unit complete the sorption unit to form an air-conditioning system.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: April 10, 2001
    Assignee: Electrolux Leisure Appliances AG
    Inventor: Bengt Ebbeson
  • Patent number: 6210455
    Abstract: An evaporation apparatus for evaporation of, for example, spent liquor from pulp cooking. The apparatus has a vertical cylinder that has evaporation surfaces disposed therein. An outlet opening is defined in a widened part of the cylinder to receive driven-off steam. A skirt is disposed in the cylinder and surrounds the evaporated liquid and driven-off steam and has a diameter that is smaller than a diameter of the widened part. The skirt has an open bottom and a skirt opening is defined in a portion of the skirt that is facing away from the outlet opening.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: April 3, 2001
    Assignee: Kvaerner Pulping AB
    Inventors: Lars Olausson, Michael Thiede, Olle Wennberg, Anders Wernqvist, Martin Collander
  • Patent number: 5736003
    Abstract: Process for vacuum-concentrating urea solutions in which the final step of evaporation of the urea solution under vacuum is carried out within the injection of overheated water vapor in the overhead portion of the concentrator, in order to counteract the formation and deposition of high-melting, fouling compounds derived from urea.
    Type: Grant
    Filed: August 10, 1995
    Date of Patent: April 7, 1998
    Assignee: Snamprogetti S.p.A.
    Inventor: Franco Granelli
  • Patent number: 5614029
    Abstract: A method and apparatus to minimize contamination in a furnace comprising placing a case to accommodate material to be heat treated in the furnace, forming a gas flow into the case from inside of the furnace, heating the work maintained in the case to evaporate organic matters contained in the work, evacuating the vapor containing the organic matter to the outside of the furnace through an internal evacuation duct provided through the furnace, liquefying the vapor containing the organic matters under reduced pressure by introducing same into a liquefying trap and thereafter continuously collecting these liquefied organic matters.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: March 25, 1997
    Assignee: Shimadzu Mectem, Inc.
    Inventors: Eiji Nakatsukasa, Masao Takeda, Ippei Yamauchi
  • Patent number: 5273623
    Abstract: Process for vacuum-concentrating urea solutions in which the final step of evaporation of the urea solution under vacuum is carried out within the injection of overheated water vapor in the overhead portion of the concentrator, in order to counteract the formation and deposition of high-melting, fouling compounds derived from urea.
    Type: Grant
    Filed: April 18, 1991
    Date of Patent: December 28, 1993
    Assignee: Snamprogetti, S.p.A.
    Inventor: Franco Granelli
  • Patent number: 5246541
    Abstract: A falling film evaporator includes a chamber having a top and bottom tube plate; a plurality of vertical tubes each having an interior and exterior surface and extending through the chamber and being supported by the top and bottom tube plates; an inlet at the chamber for feeding heating medium into the chamber; a distributor above the tubes for feeding liquid to be evaporated into the tubes and for causing the liquid to be distributed as a falling film along the interior surface of the tubes so as to evaporate the liquid and generate vapor as the liquid passes in heat exchanging relationship with a heating medium present at the exterior surface of the tubes; a vapor space defined by a circumferential wall below the tubes; a plurality of vertically elongated spaced elements having a substantially U-shaped cross-section with inwardly pointing vertical edges for receiving the evaporated liquid and the vapor, the elements being arranged in a circumferential wall below the tubes within the vapor space spaced from
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: September 21, 1993
    Assignee: A. Ahlstrom Corporation
    Inventor: Rolf Ryham
  • Patent number: 5028298
    Abstract: The present invention relates to a technique of concentrating waste water whereby the water content of the waste water is removed with a high decontamination factor, employs a porous membrane having a property allowing gas such as steam to permeate but not allowing a liquid such as water to do, as a membrane for concentrating the waste water, and adopts a method wherein the waste water is turned into a vapor flow and this vapor flow is made to contact the porous membrane so as for the waste water to be concentrated on the occasion when the waste water is to be concentrated by means of this porous membrane. By turning the waste water into the vapor flow, most of various metal ions, a surfactant, etc. existing in the waste water are separated from the vapor flow. Mist, metal ions in the mist and others contained in the vapor flow are removed by the aforesaid porous membrane from the steam while permeating the same.
    Type: Grant
    Filed: November 4, 1988
    Date of Patent: July 2, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Tsutomu Baba, Koichi Chino, Shunsuke Uchida, Toshio Sawa, Makoto Kikuchi
  • Patent number: 5022967
    Abstract: A microdistillation column for the quantitative steam distillation of cyanide, phenolic compounds, hydrogen fluoride, ammonia, sulfites and other volatile analyte compounds from samples of environmental waters and sludge for their subsequent analysis involves volatilizing the water in the sample tube of the microdistillation column. The pressure which develops due to the water vapor forces all volatile compounds from the water sample, including the water itself, through a hydrophobic membrane and into the collector tube of the microdistillation column. The volatile compounds and the water vapor condense in the cooler collector tube and are quantitatively trapped and retained over the membrane. Relatively small samples may be distilled in the column.
    Type: Grant
    Filed: September 18, 1989
    Date of Patent: June 11, 1991
    Assignee: Lachat Instruments
    Inventor: Scott Stieg
  • Patent number: 4902446
    Abstract: Reducing the volume of radioactively loaded liquids, particularly evaporator concentrates, by heating in a storage container up to solidification, wherein liquids are replenished for filling up the storage container. Heating takes place discontinuously in heating periods separated from each other in time. The heat is introduced directly into the container contents. Vapors produced are drawn off intermittently.
    Type: Grant
    Filed: August 22, 1985
    Date of Patent: February 20, 1990
    Assignee: Siemens Aktiengesellschaft
    Inventors: Dietmar Erbse, Lydia Fuchs, Dietmar Bege, Horst Queiser, Siegfried Meininger
  • Patent number: 4828717
    Abstract: The device for reducing the volume of an aqueous waste effluent includes a holding tank, a heating tank for receiving waste effluent from the holding tank and including a heater for heating the waste effluent to a predetermined temperature which is below the boiling point of water and high enough to cause a portion of the water to evaporate and be discharged as water vapors, an agitation pump for continuously recirculating the liquids contents of the heating tank and filter units mounted on top of the heating tank for separating solids and particulate matter from the resulting slurry and returning the filtrate to the heating tank.
    Type: Grant
    Filed: April 14, 1988
    Date of Patent: May 9, 1989
    Assignee: Arkay Corporation of Wisconsin
    Inventors: James A. DeLeeuw, Raymond E. Sims
  • Patent number: 4770748
    Abstract: An improved vacuum distillation system is disclosed for purifying contaminated liquids, such as seawater, brackish water and chemical effluents. In the preferred embodiment, the system includes a vertical separation chamber in which contaminated liquid (e.g.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: September 13, 1988
    Assignee: Roncell, Inc.
    Inventors: John V. Cellini, Mario F. Ronghi, James G. Geren
  • Patent number: 4608119
    Abstract: An apparatus for concentrating aqueous solutions of hygroscopic organic liquid having boiling points higher than the normal boiling point of water is disclosed. The apparatus includes an airtight evacuated chamber, means for injecting a preheated temperature adjusted solution into the chamber to vaporize water from the solution and produce a concentrated aerosol of organic liquid, and means for coalescing the concentrated aerosol. Also included is a system for recovery of organic vapor leaving the chamber along with the vaporized water.
    Type: Grant
    Filed: May 14, 1984
    Date of Patent: August 26, 1986
    Assignee: Niagara Blower Company
    Inventor: Jack T. Rowland
  • Patent number: 4585520
    Abstract: A method and apparatus to prevent water hammer and condensation shock in evaporators by closing a vent line when the condensate level rises in an evaporator, thus causing steam flow to the evaporator to stop. The apparatus prevents continuing entry of steam through a steam inlet and thus prevents damage to the evaporator equipment.
    Type: Grant
    Filed: April 18, 1983
    Date of Patent: April 29, 1986
    Assignee: Rosenblad Corporation
    Inventor: Axel E. Rosenblad
  • Patent number: 4412887
    Abstract: An improved evaporation process for accomplishing the separation of a solution into its volatile and non-volatile components. The improvement over conventional evaporation, according to which the solution is fed to a calandria where it is heated and partially vaporized and the resulting calandria vapor stream is subjected to vapor-liquid separation for the removal of entrainment, relates to the practice of an additional and intermediate step in which the calandria vapor is contacted with the feed solution.
    Type: Grant
    Filed: February 1, 1980
    Date of Patent: November 1, 1983
    Assignee: Shell Oil Company
    Inventor: Robert F. Dye
  • Patent number: 4409064
    Abstract: This invention relates to an improved process for reducing solute in a vapor stream and, particularly, to the adaption of this process in concentrating solutions in an evaporator wherein the solution is heated to volatilize solvent. The improvement for reducing solute in the vapor stream resides in (a) the utilization of a wire mesh mist eliminator pad having a wire diameter of from 0.001-0.05 inches, an interfacial area from 50-200 ft.sup.2 /ft.sup.3, a void space of about 90-99 percent and a packing thickness of 4-16 inches and (b) spraying a liquid through the mist eliminator pad, the liquid being sprayed uniformly over the surface of the mist eliminator pad at a rate of 0.6-2.5 pounds liquid per pound of vapor to provide a wetting rate of 0.1-0.25 gallons per minute per square foot of mist eliminator surface area. The process has been particularly advantageous in the multistage concentration of corrosive products particularly in the concentration of a 60-70% sulfuric acid solution to about 93 percent.
    Type: Grant
    Filed: November 9, 1981
    Date of Patent: October 11, 1983
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Suresh M. Vora, William J. Mazzafro, Pierre L. T. Brian, Michael S. K. Chen
  • Patent number: 4375386
    Abstract: A vacuum evaporator is provided with an integral cyclonic-type entrainment separator at the top of the evaporator vapor body which comprises a helical spin plate for imparting a centrifugal action to the vapor and entrained liquid rising from the boiling liquid in the flash chamber. Liquid entrainment is deposited on the vertical wall of the evaporator and flows downward countercurrent to vapor flow into a collecting trough, from which it is discharged into a pipe that returns it to the boiling liquid.
    Type: Grant
    Filed: May 7, 1981
    Date of Patent: March 1, 1983
    Assignee: The Badger Company, Inc.
    Inventor: Donald M. Windham
  • Patent number: 4280867
    Abstract: A system for regeneration of a liquid disiccant which utilizes a reboiler and still column to remove a major portion of absorbed water and then exposes the hot, partially dehydrated desiccant to a flow of dry, inert flue gas and a partial vacuum, in order to remove additional water from the desiccant.
    Type: Grant
    Filed: June 11, 1979
    Date of Patent: July 28, 1981
    Assignee: Maloney-Crawford Corporation
    Inventor: Robert A. Hodgson
  • Patent number: 4254246
    Abstract: A new process for use with continuously operated plants for the production of polyester polymers suitable for producing fibers, bottles and film, by reacting ethylene glycol and terephthalic acid in the presence of a catalyst so that the vapour by-products from the esterification, prepolycondensation and polycondensation stages are continuously rectified in two in-line columns yielding ethylene glycol of high purity (99.85%) which is returned to the process, waste water with 400 ppm ethylene glycol, and a heavy fraction containing oligomers, diethylene glycol, etc.Moreover, an improvement in the quality of the esterified product is attained as it contains less than 0.6% diethylene glycol without the use of diisopropylamine, a poisonous additive.
    Type: Grant
    Filed: March 26, 1979
    Date of Patent: March 3, 1981
    Assignee: Davy International AG
    Inventors: Ovidiu Dicoi, Hans Wewer
  • Patent number: 4082606
    Abstract: An integral forced circulation evaporator apparatus which comprises an evaporating chamber, providing therein a liquid space and a vapor space, a heating zone containing vertically disposed heat exchange tubes, and a liquid receiving chamber, said evaporating chamber being surmounted on said heating zone, in direct communication with the upper ends of said heat exchange tubes, said liquid receiving chamber being surmounted by said heating zone, in direct communication with the lower ends of said heat exchange tubes; pump means horizontally disposed within said liquid receiving chamber for the circulation of liquid through said evaporator apparatus, partition means disposed within said liquid receiving chamber so as to form, within said liquid receiving chamber, a first section containing the intake side of said pump means and a second section containing the discharge side of said pump means, said partition means further being positioned such that the lower ends of a portion of the heat exchange tubes are in d
    Type: Grant
    Filed: October 20, 1975
    Date of Patent: April 4, 1978
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventors: James E. Houston, Reynard W. Gingrich, Earl A. Schilt
  • Patent number: 4026681
    Abstract: A gas dehydrator system for removing salty water from natural gas, and thereafter subsequently removing the salt and water from the dehydrating agent. The salty water is removed from the gas in a scrubber. The water is then distilled from the dehydrating agent, leaving a salty dehydrating agent from which the salt is crystallized before the agent is recirculated to the scrubber. This expedient prevents undesired crystallization of salt from occurring within the various components of the system.
    Type: Grant
    Filed: December 4, 1975
    Date of Patent: May 31, 1977
    Inventor: Thomas J. Roskelley
  • Patent number: 4010065
    Abstract: Improved process and apparatus for drying oxygen-containing streams, particularly wet air streams, are provided wherein these streams are contacted with glycols. The regeneration of glycols and in particular the removal of oxygen from the glycols is effected in a first step at a temperature below the oxidation temperature of the glycols, and then the removal of water from the glycols is effected in a second step, preferably by heating the wet glycols.
    Type: Grant
    Filed: March 20, 1975
    Date of Patent: March 1, 1977
    Assignee: Phillips Petroleum Company
    Inventor: Carl E. Alleman
  • Patent number: 3976537
    Abstract: The invention comprises a method of evaporating an aqueous solution containing dissolved solids or mineral salts without adherence of the solids or mineral salts to any surfaces contacting the aqueous solution which comprises the following steps:A. Flowing the aqueous solution as an outside medium mixed with sufficient dispersed oil to form a continuous film on all preferentially oil wettable contacting surfaces, upward through a confined heating and vaporizing zone and therein contacting heating elements the surfaces of which are substantially zero water adsorbent and totally wetted with a film of oil, converting a portion of the aqueous solution to water vapor and precipitated solids.B. Separating this mixture of oil, misty vapors, solids, and remaining aqueous solution (still the outside water medium) into components of thereof in succeeding zones or chambers in which substantially all surfaces contacting these materials are preferentially oil wettable.
    Type: Grant
    Filed: February 4, 1975
    Date of Patent: August 24, 1976
    Assignee: Austral-Erwin Engineering Co.
    Inventor: Ransome W. Erwin
  • Patent number: 3975229
    Abstract: An apparatus for flamelessly reconcentrating liquid desiccant includes upper and lower enclosed reboiler drums having an enclosed heating section interposed therebetween. Water-rich liquid desiccant is continuously recirculated between the upper and lower reboiler drums through riser conduits disposed within the heating section and return conduits exterior thereof. Simultaneously with the recirculation of the water-rich liquid desiccant an exhaust gas stream from a prime mover is passed through the heating section to convectionally heat the liquid desiccant within the riser conduits causing disengagement of water vapors therefrom. The upper drum includes an outlet for the disengaged water vapors and also an outlet for the resultant water-lean liquid desiccant.
    Type: Grant
    Filed: January 10, 1972
    Date of Patent: August 17, 1976
    Inventor: Morden A. Jackson
  • Patent number: 3970512
    Abstract: The invention relates to evaporators of adiabatic or "instantaneous" boiling for distilling sea water. According to the invention, the evaporator, substantially for a distiller, is characterized in that it comprises a housing accomodating pipelines with slot-like nozzles used for feeding superheated water onto an evaporating surface accomplished by plates positioned within the housing at an acute angle to its vertical plane. These plates provide for film evaporation of the overheated water. Mounted in the housing on the path of movement of the vapor are gravitational-kinetic traps to catch the liquid particles carried away by the vapor.
    Type: Grant
    Filed: October 8, 1974
    Date of Patent: July 20, 1976
    Inventors: Ismail Zulfugarovich Makinsky, Samuil Petrovich Baksht
  • Patent number: 3966559
    Abstract: In a deodorizing apparatus, at least the lower part of a column is surrounded at least partly by compartments which are not connected together, each compartment having means for supplying treatment fluid and means for discharging the treated material with separate control but opening into a common duct. The duct for discharging the treated material from the central column is divided into separate ducts the outlets of which open into the compartments and which are provided with separately-controlled means for carrying the material to the respective compartments.
    Type: Grant
    Filed: May 14, 1974
    Date of Patent: June 29, 1976
    Assignee: Extraction de Smet
    Inventor: Anthony Athanassiadis
  • Patent number: 3965005
    Abstract: Apparatus for separating feed solution, such as chrome or nickel plating rinse solutions, into a concentrated liquor portion and a solvent portion, comprising vertical shell and tube evaporator means for generating a stream of vapor and entrained droplets; first impingement means for separating a first liquor portion from the stream; second impingement means for separating a second liquid portion from the stream; mesh entrainment pad means for separating a third liquor portion from the stream to form a stream consisting essentially of pure solvent vapor; reduced pressure generating means for drawing the stream from the evaporator tubes through the impingement and mesh entrainment pad; capacitance means for accumulating a preselected volume of the first, second, and third liquor portions above the lower end of the evaporator; and conduit means for recycling liquor from the capacitance means to the evaporator means.
    Type: Grant
    Filed: November 22, 1974
    Date of Patent: June 22, 1976
    Assignee: Corning Glass Works
    Inventors: Lawrence C. Boyd, Jr., Everett F. Kelm, John C. Randall