F25J 3 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification

Patents for F25J 3 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification (11,467)
12/1997
12/10/1997	EP0811576A2 Process and apparatus for the preparation of a cryogenic liquid fluid of high purity
12/10/1997	CN1167246A Double pure oxygen generator for compressor with reboiling device
12/10/1997	CN1167245A Distillator
12/10/1997	CN1167244A Production of ultra-high pure oxygen
12/09/1997	US5694790 Separation of gas mixtures
12/03/1997	EP0810412A2 High purity nitrogen generator unit and method
12/03/1997	CN2269571Y Liquid nitrogen producing device for mounting internal combustion engine
12/02/1997	US5692398 Production of argon
12/02/1997	US5692397 Air separation
12/02/1997	US5692396 Compressed air and liquid air introduced into higher pressure rectification column, air separated into nitrogen fraction and oxygen enriched fraction, oxygen separated from oxygen enriched fraction, fraction recycled
12/02/1997	US5692395 Separation of fluid mixtures in multiple distillation columns
11/1997
11/25/1997	US5689975 Air separation
11/25/1997	US5689974 Method and apparatus for pre-purification for air cryogenic separation plant
11/25/1997	US5689973 Air separation method and apparatus
11/25/1997	CA2159751C Side column cryogenic rectification system for producing lower purity oxygen
11/25/1997	CA2141383C Precooling for ethylene recovery in dual demethanizer fractionation systems
11/25/1997	CA2068181C Elevated pressure air separation cycles with liquid production
11/19/1997	EP0807792A2 Air separation method and apparatus
11/19/1997	EP0807600A1 Ultra-high purity nitrogen trifluoride production method, and unit therefor
11/19/1997	EP0807462A1 Structured packing element with bi-directional surface texture and a mass and heat transfer process using such packing element
11/19/1997	CN1165286A Heat exchanger
11/19/1997	CN1165285A 热交换器 Heat exchanger
11/19/1997	CN1165284A Ultra high purity nitrogen and oxygen generator unit
11/19/1997	CN1165283A Air separation method and its apparatus
11/18/1997	US5689141 Compressor drive system for a natural gas liquefaction plant having an electric motor generator to feed excess power to the main power source
11/18/1997	US5689032 Separating hydrocarbon gas
11/18/1997	US5687584 Natural gas
11/12/1997	EP0806468A2 Olefin recovery from olefin-hydrogen mixtures
11/12/1997	CN1164890A LNG production in cryogenic natural gas processing plants
11/12/1997	CN1164635A Cryogenic rectification system with staged feed air condensation
11/11/1997	US5685173 Process and plant for the production of a gas under pressure by cryogenic distillation
11/11/1997	US5685172 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
11/11/1997	US5685171 Cold scrubbing
11/11/1997	US5685170 In natural gas, absorber upstream from an expander and a separator
11/11/1997	US5685169 Rectification
11/06/1997	WO1997041400A1 Process for starting an installation for low temperature air decomposition and installation for low temperature air decomposition
11/06/1997	DE19617377A1 Verfahren zum Wiederanfahren einer Anlage zur Tieftemperaturzerlegung von Luft und Anlage zur Tieftemperaturzerlegung von Luft Method for restarting a plant for the cryogenic separation of air and plant for the cryogenic separation of air
11/05/1997	EP0805324A2 Distillation apparatus
11/05/1997	EP0805323A2 Air separation
11/05/1997	EP0805217A2 Oxygen steelmaking
11/05/1997	CN1164014A Air separation method and its apparatus
11/04/1997	US5683493 Packing for separation columns and process of use
11/04/1997	US5682945 Heat exchanger with brazed plates and corresponding process for treating a diphase fluid
11/04/1997	US5682767 Argon production
11/04/1997	US5682766 Cryogenic rectification system for producing lower purity oxygen and higher purity oxygen
11/04/1997	US5682765 Cryogenic rectification system for producing argon and lower purity oxygen
11/04/1997	US5682764 Distillation
11/04/1997	US5682763 Ultra high purity oxygen distillation unit integrated with ultra high purity nitrogen purifier
11/04/1997	US5682762 Process to produce high pressure nitrogen using a high pressure column and one or more lower pressure columns
11/04/1997	US5682761 Ultra-high purity nitrogen generating method and unit
10/1997
10/29/1997	CN1163386A Process and device for producing nitrogen
10/28/1997	US5681360 Landfill gas recovery
10/28/1997	US5680775 Separartion of light and heavy fragments
10/23/1997	WO1997039298A1 Air separation apparatus
10/23/1997	WO1997039235A1 Synergistic integration of physical solvent agr with plants using gasification
10/22/1997	EP0802160A1 Process and apparatus for the supply of ultra-pure helium
10/22/1997	CN2265516Y Circulation wetting method dust cleaner
10/22/1997	CN1162733A Process and plant for production of gas under pressure by cryogenic distillation
10/21/1997	US5678427 Cryogenic rectification system for producing low purity oxygen and high purity nitrogen
10/21/1997	US5678426 Separation of fluid mixtures in multiple distillation columns
10/21/1997	US5678425 Method and apparatus for producing liquid products from air in various proportions
10/21/1997	US5678424 Stripping stage; overhead condenser
10/19/1997	CA2203090A1 Procedure and installation for supplying ultra-pure helium
10/15/1997	EP0744992B1 Process for preparing particles or powders
10/15/1997	EP0626058B1 Ultra-high purity monosilane producing process and unit
10/15/1997	CN1162101A Single-tower low-temp. rectification system for production of low-purity oxygen
10/15/1997	CN1161874A Device for vaporizing liquid and method thereof
10/14/1997	US5675977 System for producing oxygen and nitrogen from feed air which operates efficiently even when products are produced at elevated pressure
10/14/1997	CA2150284C Cryogenic rectification system capacity control method
10/14/1997	CA2148965C Air boiling cryogenic rectification system for producing elevated pressure oxygen
10/14/1997	CA2141385C Open loop mixed refrigerant cycle for ethylene recovery
10/14/1997	CA2141384C Mixed refrigerant cycle for ethylene recovery
10/14/1997	CA2140561C Atmospheric gas separation method
10/14/1997	CA2131656C Cryogenic air separation process producing elevated pressure nitrogen by pumped liquid nitrogen
10/14/1997	CA2131655C Air separation schemes for oxygen and nitrogen coproduction as gas and/or liquid products
10/14/1997	CA2128565C Cryogenic rectification process and apparatus for vaporizing a pumped liquid oxygen product
10/14/1997	CA2115297C Process to produce a krypton/xenon enriched stream directly from the main air distillation column
10/09/1997	WO1997037177A1 Cryogenic accumulator for spin-polarized xenon-129
10/08/1997	EP0800047A2 Cryogenic rectification system for producing lower purity gaseous oxygen and high purity oxygen
10/08/1997	EP0799401A1 Rectified reflux deethanizer
10/08/1997	CN1161443A Air boiling cryogenic rectification system with staged feed air condensation
10/08/1997	CN1161442A Gas mfr.
10/07/1997	US5675054 Low cost thermal coupling in ethylene recovery
10/07/1997	US5673571 Natural gas liquids fractionation
10/02/1997	WO1997036139A1 Aromatics and/or heavies removal from a methane-based feed by condensation and stripping
10/01/1997	EP0798528A2 Heat Exchanger
10/01/1997	EP0798524A2 Ultra high purity nitrogen and oxygen generator unit
10/01/1997	EP0798523A2 Cryogenic rectification system capacity control method
10/01/1997	EP0798522A2 Single column cryogenic rectification system for lower purity oxygen production
10/01/1997	EP0658245B1 Process and apparatus for producing liquid carbon dioxide
09/1997
09/29/1997	CA2198323A1 Heat exchanger
09/24/1997	EP0797065A2 Heat exchanger of falling film type
09/24/1997	EP0797062A2 Cryogenic rectification system with staged feed air condensation
09/24/1997	EP0797061A2 Air boiling cryogenic rectification system, with staged feed air condensation
09/24/1997	EP0796818A1 Krypton gas mixture for insulating windows
09/24/1997	CN1160185A Heat exchanger with brazed plates and corresponding process for treating diphase fluid
09/24/1997	CN1160181A Process and apparatus for production of moderate purity oxygen
09/23/1997	US5669958 Methane/nitrogen separation process
09/23/1997	US5669238 Gas purification in natural gas recovery process
09/23/1997	US5669237 Method and apparatus for the low-temperature fractionation of air

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