Patents for F25J 3 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification (11,467)
09/1997
09/23/1997US5669236 Cryogenic rectification system for producing low purity oxygen and high purity oxygen
09/17/1997EP0795728A2 Combustion turbine and elevated pressure air separation system with argon recovery
09/17/1997EP0795727A1 Process and apparatus for liquefying a low-boiling gas
09/17/1997EP0795614A1 Process for operating an installation comprising a metal treatment unit and a unit for the treatment of gas
09/17/1997EP0795349A1 Device and process for evaporating a liquid
09/17/1997EP0580276B1 Refrigeration system for a natural gas liquefaction process
09/17/1997CN1159568A Defrost and liquid distribution for plate-fin heat exchanger
09/17/1997CN1159358A Liquid redistribution device
09/16/1997US5667643 Heat exchanger and double distillation column
09/16/1997US5667005 Heat exchanging unit and heat exchanging apparatus
09/16/1997US5666828 Cryogenic hybrid system for producing low purity oxygen and high purity oxygen
09/16/1997US5666825 Introduction or withdrawal of liquid rich in nitrogen to maintain purities of oxygen and nitrogen rich fractions
09/16/1997US5666824 Cryogenic rectification system with staged feed air condensation
09/16/1997US5666823 Storage of selected cryogenic liquids during periods of low power or low product demand; compression of air, combustion with a fuel, exapansion of hot combustion product, cooling to remove impurities
09/16/1997US5666822 Pre-purification, compression and rectification in stages to separate nitrogen, oxygen and argon
09/16/1997US5666812 Apparatus and process for renewing refrigerants
09/16/1997US5666800 Gasification combined cycle power generation process with heat-integrated chemical production
09/13/1997CA2199330A1 Combustion turbine and elevated pressure air separation system with argon recovery
09/12/1997WO1997033132A1 Deethanizer/depropanizer sequences with thermal and thermo-mechanical coupling and component distribution
09/12/1997WO1997033131A1 An installation for producing liquefied natural gas
09/10/1997EP0793985A1 Liquid redistribution system
09/10/1997CN1158978A Method and apparatus for producing ultra-high purity oxygen
09/10/1997CN1158977A Process for removing nitrogen from liquefied natural gas (LNG)
09/10/1997CN1158941A High pressure combustion turbine and air separation system integration
09/09/1997US5664438 Cryogenic side column rectification system for producing low purity oxygen and high purity nitrogen
09/09/1997US5664411 Heat exchange
09/08/1997CA2191414A1 Liquid redistribution system
09/04/1997WO1997032172A1 Reducing the amount of components having low boiling points in liquefied natural gas
09/04/1997WO1997032171A1 Membrane-augmented cryogenic methane/nitrogen separation
09/04/1997WO1997031701A1 Methane/nitrogen separation process
09/04/1997DE19708025A1 Recovery and purification of argon from silicon crystal growing oven
09/03/1997EP0793070A2 High pressure combustion turbine and air separation system integration
09/03/1997EP0793069A1 Dual purity oxygen generator with reboiler compressor
09/03/1997EP0792835A1 Ozone storing method and ozone storage system
09/03/1997EP0572634B1 Combined adjustable-flow rate nitrogen and oxygen production method
09/02/1997US5661987 Three-bed nonimmobilized rapid pressure-swing adsorber
08/1997
08/26/1997US5660059 Plurality of compression stages; higher pressure rectification, condensation, lower pressure rectification, refrigeration, liquefication, vaporization, heat exchange, heating and recompression
08/20/1997EP0790212A1 Process and apparatus for producing carbon monoxide
08/20/1997CN1157181A Process for introducing multicomponent liquid feed stream at pressure P2 into distillation column operating at lower pressure P1
08/19/1997US5659109 Method for removing mercaptans from LNG
08/19/1997US5657644 Using double rectification column having high and low pressure sections and side rectification column for withdrawing argon
08/17/1997CA2197529A1 Process and plant for producing carbon monoxide
08/13/1997EP0789208A1 Process and installation for the production of gaseous oxygen under high pressure
08/12/1997US5656557 Process for producing various gases for semiconductor production factories
08/12/1997US5655388 Cryogenic rectification system for producing high pressure gaseous oxygen and liquid product
08/12/1997CA2197156A1 Process and installation for producing high pressure oxygen
08/05/1997US5653126 Packing material comprising thin corrugated plates having plurality of holes in square pattern, plurality of projections arranged in line, wherein lines of holes are parallel to lines of projections
07/1997
07/31/1997CA2195909A1 High pressure combustion turbine and air separation system integration
07/30/1997EP0786633A1 Method and apparatus for separating argon
07/29/1997US5651271 Precooling
07/29/1997US5651270 Core-in-shell heat exchangers for multistage compressors
07/29/1997US5651269 Dense phase to a liquid phase without phase transition
07/16/1997CN1154464A Ultra high purity nitrogen and oxygen generator unit
07/16/1997CN1154463A Process and installation for production of gaseous oxygen under pressure at variable flow rate
07/16/1997CN1035428C nitrogen deoxygen purifying method
07/15/1997US5647972 Low pressure chilling train for olefin plants
07/15/1997US5647961 Refrigerant decontamination and separation system
07/15/1997US5647227 Membrane-augmented cryogenic methane/nitrogen separation
07/09/1997CN1153896A Air separation
07/09/1997CN1153895A Method and apparatus for extracting oxygen and nitrogen under condition of super atmospheric pressure
07/08/1997US5644934 Cooling compressed air, ractifying to form liquid oxygen and gaseous nitrogen, vaporizing liquid product fraction, condensing, separating crude argon vapors and oxygen rich liquid, liquefying crude argon
07/08/1997US5644933 Rectification by heat exchanging
07/08/1997US5644932 Use of structured packing in a multi-sectioned air seperation unit
07/08/1997US5644931 Feeding, heat exchanging, extracting, compressing, separating and cooling; low power consumption by compressor for refrigerant; gas-liquid separation
07/01/1997US5642630 Process for solids waste landfill gas treatment and separation of methane and carbon dioxide
07/01/1997CA2127523C Cryogenic liquid nitrogen production system
06/1997
06/25/1997EP0780649A1 A method and installation for the removal of nitrogen from natural gas
06/25/1997EP0780648A2 Nitrogen generation method and apparatus
06/25/1997EP0780647A2 Cryogenic rectification system with nitrogen turboexpander heat pump
06/25/1997EP0780646A2 Heat exchanger and double distillation column
06/25/1997CN1152702A Method and apparatus for preparing high-purity nitrogen
06/25/1997CN1152547A Method for preparing high-pureness carbon dioxide
06/19/1997CA2187494A1 Nitrogen generation method and apparatus
06/18/1997CN1152350A High efficiency nitrogen generator
06/18/1997CN1152108A Air separation method and apparatus for producing nitrogen
06/17/1997US5638699 Rectification column; heat exchanger; expansion valve for adiabatic expansion; low temperature air pipe; inverted u-shaped nitrogen gas delivery pipe
06/17/1997US5638698 Cryogenic system for producing nitrogen
06/11/1997EP0778354A1 Process for supplying controlled atmosphere gases into a heat treatment furnace and heat treatment plant
06/04/1997EP0776685A1 Process for introducing a multicomponent liquid feed stream into a distillation column operating at lower pressure
06/04/1997EP0666772B1 Device for adsorption separation of elements in a gaseous mixture
06/04/1997CN1151011A Production of ultra-high purity oxygen from cryogenic air separation plants
06/04/1997CN1150917A Integrated air separation process
06/03/1997US5635541 Natural gas oxidized to produce synthesis gas which is reacted to produce hydrocarbons; steam produced generates work
06/03/1997US5634356 Process for introducing a multicomponent liquid feed stream at pressure P2 into a distillation column operating at lower pressure P1
06/03/1997US5634354 Condensation of ethylene; removal of hydrogen from noncondensed gas by polymeric membrane permeation, adsorptive membrane permeation or pressure swing adsorption
05/1997
05/29/1997CA2191186A1 Process for introducing a multicomponent liquid feed stream at pressure p2 into a distillation column operating at lower pressure p1
05/28/1997EP0775881A2 Process and apparatus for recovering oxygen and nitrogen at superatmospheric pressure
05/28/1997EP0775880A2 Double column process and apparatus for cryogenic air separation
05/28/1997EP0588690B1 Cryogenic treatment installation, particularly for the distillation of air
05/27/1997US5632934 Packing with improved capacity for rectification systems
05/27/1997US5632807 Device for the separation of elements of a gas mixture by adsorption
05/27/1997US5632162 Carbon monoxide production plant incorporating a cryogenic separation unit
05/26/1997CA2191161A1 Method and device for obtaining oxygen and nitrogen at superatmospheric pressure
05/21/1997EP0774634A2 Gas manufacture
05/21/1997CN1150056A Process and device for preparation of flow which is ubstantially purified with respect to at least one of impurities oxygen and carbon monoxide
05/20/1997US5630475 Device for pressurizing a plate bundle, especially for a plate heat exchanger
05/20/1997US5630328 Refrigeration unit for chilling compressed natural gas before and during dispensing to vehicle fuel tanks
05/14/1997EP0773417A2 Air separation method and apparatus for producing nitrogen
05/14/1997EP0773416A2 Operation of integrated gasification combined cycle power generation systems at part load
05/14/1997EP0772665A1 Method of enriching the methane content of a mine gas
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