Patents for F25J 3 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification (11,467)
01/1997
01/07/1997US5590544 Process and apparatus for recovery of pure argon
01/07/1997US5590543 Removing portion of liquid descending the distillation column
01/07/1997US5590519 Combined combustion and exhaust gas cleansing plant
01/02/1997EP0751358A2 Method and apparatus for producing ultra-high purity oxygen
01/02/1997EP0750933A1 Process and apparatus for the preparation of a substantially purified flux of at least one of the impurities chosen between oxygen and carbon monoxide
01/02/1997EP0750932A2 Volatile organic compounds recovery from vent gas streams
01/02/1997EP0636237B1 Process for the low-temperature air separation and air separation plant
01/02/1997DE19526225C1 Refrigerant circuit for cooling fluids
01/01/1997CN1139196A Cryogenic vapor recovery process and system
12/1996
12/31/1996US5588308 Cooling, partially liquefying compressed natural gas feed stream, separating methane-rich vapor, introducing liquid into stripping column, recovering methane vapor, expanding and vaporizing bottoms liquid by indirect heat exchange
12/31/1996US5588306 Process for obtaining an ethane-rich fraction for refilling an ethane-containing refrigerant circuit of a process for liquefaction of a hydrocarbon-rich fraction
12/31/1996CA2180235A1 Process and device for the preparation of a flow which is substantially purified with respect to at least one of the impurities oxygen and carbon monoxide
12/27/1996EP0750340A1 Nitrogen gas supply system
12/27/1996CA2175775A1 Method and apparatus for producing ultra-high purity oxygen
12/24/1996US5586451 Cryogenics; dividing rich liquid into two fractions and reentering them at different levels in low pressure column; withdrawing impure nitrogen
12/24/1996CA2111618C Triple column distillation system for oxygen and pressurized nitrogen production
12/24/1996CA2110664C Cryogenic helium production system
12/19/1996WO1996040604A1 Hydrocarbon gas processing
12/19/1996DE19543953C1 Recovery of oxygen@ and nitrogen@ under super-atmospheric pressure
12/18/1996EP0748765A1 Installation for the production of carbon monoxide including a cryogenic separation plant
12/18/1996EP0748763A1 Integrated natural gas conversion and air separation
12/18/1996EP0748644A1 Liquid-vapour contact apparatus
12/18/1996CN1138314A Method and apparatus for preparing high purity hydrogen bromide
12/11/1996EP0607006B1 Plate fin heat exchanger built-in type multi-stage thermosiphon
12/10/1996US5582036 Producing oxygen enriched blast air and high purity oxygen
12/10/1996US5582035 Air separation
12/10/1996US5582034 Reflux for distillation column is produced by condensation of stream of nitrogen-rich vapor through indirect heat exchange with liquid stream extracted from distillation column
12/10/1996US5582033 Purification by pressurizing in two different pressure columns, liquefying, vaporization
12/10/1996US5582032 High purity product produced from bottom of distillation column comprising at the bottom of the column a reboiler in fluid contact with the high purity product liquid
12/10/1996US5582031 Air separation
12/10/1996US5582029 Use of nitrogen from an air separation plant in carbon dioxide removal from a feed gas to a further process
12/10/1996US5582014 Gas compressor for halocarbon purification
12/05/1996DE19620453A1 Procedure for dissociation of gases at low temperature
12/04/1996EP0745817A1 oxygen gas manufacturing apparatus
12/04/1996EP0744992A1 Process for preparing particles or powders
12/04/1996CN1137020A Oxygen gas production apparatus
12/03/1996CA2071123C Process and system for controlling a cryogenic air separation unit during rapid changes in production
12/03/1996CA2068065C Process to produce oxygen and nitrogen at medium pressure
11/1996
11/27/1996EP0744205A2 Integrated air separation method
11/26/1996US5577394 Air separation
11/14/1996WO1996035914A1 Energy saving process
11/14/1996DE19538614A1 Working up natural gas contg., e.g., nitrogen@
11/13/1996EP0742415A2 Process for removing nitrogen from LNG
11/13/1996CN1135597A Method for recovering and purifying argon from low-temp. air separating device and apparatus thereof
11/13/1996CN1135596A Air separation
11/12/1996US5572874 Argon, oxygen
11/12/1996US5572861 S cycle electric power system
11/12/1996CA2072179C Cryogenic rectification method for producing refined argon
11/07/1996DE19623322A1 Double column air sepn. plant
11/07/1996DE19623310A1 Low pressure single column air sepn. plant
11/05/1996US5570582 Heat exchanging, liquefaction, cryogenics and purification
10/1996
10/30/1996EP0740119A2 Defrost and liquid distribution devices for plate-fin heat exchangers
10/30/1996CN1134748A Cryogenic separation
10/30/1996CN1134310A Fluid distributor for heat and material ehchange column
10/29/1996US5568737 Hydrocarbon gas processing
10/23/1996EP0738862A1 Heat exchanger with brazed plates, and corresponding method for processing a two-phase fluid
10/23/1996CN1134187A Improved thermodynamic separation
10/23/1996CN1134179A Method for recovery of coal bed methane
10/23/1996CN1133964A Process for separation of gas mixture by cryogenic distillation
10/22/1996US5566556 Process and unit for supplying a gas under pressure to an installation that consumes a constituent of air
10/22/1996US5566554 Hydrocarbon gas separation process
10/16/1996CN1133431A Liquid inlet/outlet cavity and relative fluid circulation device
10/16/1996CN1133429A 流体循环装置 Fluid circulation means
10/16/1996CN1133428A Extraction process for pure carbon monoxide fraction
10/16/1996CN1133392A Method and device for expanding and compressing at least one kind of gaseous stock fluid
10/15/1996US5564290 High pressure
10/15/1996CA2096141C Sequence for separating propylene from cracked gases
10/09/1996EP0736314A1 Distributor for fluids
10/08/1996US5561988 Retrofit unit for upgrading natural gas refrigeraition plants
10/05/1996CA2173280A1 Fluid distributor for a heat and material exchange column
10/03/1996WO1996030708A1 Method of treating a pyrogas before gas separation; method of obtaining industrial low temperatures in a vapour compression refrigeration machine by treating the pyrogas before gas separation
10/03/1996WO1996030695A1 Self-cleaning low temperature refrigeration system
10/02/1996DE19513050A1 Operation of high temp. waste disposal reactor with oxygen fractionator
10/02/1996CN1132105A Purification apparatus
10/01/1996US5560763 Three or more beds subjected to a pressure swing adsorption process; feeding; pressurization; purging; repressurization; purge conducted with a waste stream of nitrogen
10/01/1996US5560223 Process and installation for the expansion and compression of at least one gaseous stream
09/1996
09/25/1996EP0733869A2 Air separation
09/25/1996EP0733589A2 Process and apparatus for recovery and purification of argon from a cryogenic air separation unit
09/25/1996EP0733390A2 Cryogenic vapour recovery process and system
09/24/1996US5557951 Process and apparatus for recovery and purification of argon from a cryogenic air separation unit
09/18/1996EP0732556A1 Method and apparatus for vaporizing a liquid stream
09/18/1996EP0731900A1 Method and plant for liquefying natural gas
09/18/1996CN1131056A Structured packing with improved capacity for rectification systems
09/18/1996CN1131053A Removal of carbon dioxide from gas streams
09/17/1996US5557549 For troubleshooting an abnormal condition
09/17/1996US5555748 Hydrocarbon gas processing
09/16/1996CA2171679A1 Process and apparatus for spraying a liquid flow
09/12/1996WO1996027824A1 Multivariable process control method and apparatus
09/12/1996DE19609490A1 Oxygen-production process with reduced energy requirement
09/12/1996CA2214590A1 Multivariable process control method and apparatus
09/11/1996CN1130753A Air separating method and equipment
09/06/1996WO1996027111A1 High efficiency nitrogen generator
09/04/1996EP0729773A2 Process for removing organic vapor from air and technical gases
09/04/1996EP0572590B1 Method of denitrogenating a charge of a hydrocarbon mixture consisting mainly of methane and containing at least 2 % mol nitrogen
09/03/1996US5551972 Absorption process without external solvent
09/03/1996US5551258 Air separation
09/03/1996US5551257 Production of ultrahigh purity nitrogen
09/03/1996CA2109038C Cryogenic rectification system with thermally integrated argon column
08/1996
08/28/1996EP0728999A2 Separation of gas mixtures
08/28/1996EP0728284A1 Cryogenic separation
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