| Patents for F25J 3 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification (11,467) |
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| 07/28/1993 | CN1074748A Cryogenic rectification system for producing elevated pressure product |
| 07/27/1993 | US5230217 Inter-column heat integration for multi-column distillation system |
| 07/27/1993 | CA1320679C Air separation |
| 07/22/1993 | WO1993013850A1 Membrane separation process for cracked gases |
| 07/21/1993 | EP0551876A2 Process for removing carbon dioxide from combustion exhaust gas |
| 07/20/1993 | US5228298 Cryogenic rectification system with helical dry screw expander |
| 07/20/1993 | US5228297 Cryogenic rectification system with dual heat pump |
| 07/20/1993 | US5228296 Cryogenic rectification system with argon heat pump |
| 07/20/1993 | CA1320429C Process of treating a natural gas which contains hydrocarbons and h_s |
| 07/13/1993 | US5226931 Process for supplying nitrogen from an on-site plant |
| 07/13/1993 | CA1320121C Hydrocarbon gas processing |
| 07/08/1993 | WO1993013373A1 Cryogenic air separation process and apparatus |
| 07/06/1993 | US5224351 Stacks of pairs of cross-undulating lining; reduced height column |
| 07/06/1993 | US5224336 Reflux flow of nitrogen rich fluid removed or added as needed |
| 06/29/1993 | US5222549 Condenser/evaporator |
| 06/29/1993 | US5222365 Cryogenic rectification system for producing high pressure nitrogen product |
| 06/23/1993 | EP0547946A1 Process and apparatus for the production of impure oxygen |
| 06/22/1993 | US5220798 Drawing; compressing, liquification, heat exchanging, comaring and redrawing |
| 06/22/1993 | US5220797 Purification, compression, absorption through pressure swing adsorbtion system to produce nonadsorbed product, passing it to cryogenic fractional distillation system to separate hydrogen and nitrogen and produce pure argon |
| 06/19/1993 | CA2085561A1 Process and equipment for the production of impure oxygen |
| 06/16/1993 | EP0546947A1 Indirect plate-type heat exchanger |
| 06/16/1993 | CN1073259A 间接热交换器 Indirect heat |
| 06/15/1993 | US5218825 Removing a stream stripped of impurities and reintroducing it to a second distillation column for fractionation |
| 06/12/1993 | CA2084920A1 Plate-type indirect heat exchanger |
| 06/03/1993 | DE4139678A1 Xenon recovery from air fractionation bottom liq. - by evapn. and passage through adsorbent-filled transportable container for removing xenon |
| 06/01/1993 | US5214932 Hermetically sealed electric driven gas compressor - expander for refrigeration |
| 05/27/1993 | WO1993011395A1 Combined adjustable-flow rate nitrogen and oxygen production method |
| 05/27/1993 | CA2101258A1 Combined adjustable-flow rate nitrogen and oxygen production method |
| 05/25/1993 | CA2044370C Feed processing for nitrogen rejection unit |
| 05/19/1993 | EP0542559A1 Inter-column heat integration for multi-column distillation system |
| 05/19/1993 | EP0542539A1 Air separation |
| 05/19/1993 | EP0542405A1 Coproduction of a normal purity and ultra high purity volatile component from a multi-component stream |
| 05/15/1993 | CA2082676A1 Air separation |
| 05/12/1993 | EP0540901A1 Cryogenic rectification system with improved oxygen recovery |
| 05/12/1993 | EP0540900A1 Cryogenic rectification system for producing high purity oxygen |
| 05/11/1993 | US5209070 Process and arrangement for the distillation of air in the production of gaseous oxygen under variable operating conditions |
| 05/11/1993 | CA1317523C Portable viewing stand |
| 05/04/1993 | US5207067 Rectification, liquid pumping, oxygen |
| 05/04/1993 | US5207066 Low temperature rectification, nitrogen, oxygen, argon |
| 05/04/1993 | US5207065 Reflux condensation |
| 04/29/1993 | WO1993008436A1 Method of denitrogenating a charge of a liquified hydrocarbon mixture consisting mainly of methane and containing at least 2 % mol nitrogen |
| 04/28/1993 | EP0539268A1 Process for removing hydrogen by cryogenic distillation in the production of high purity nitrogen |
| 04/28/1993 | EP0538857A1 Installation for the low temperature separation |
| 04/28/1993 | EP0538520A1 Method of air separation |
| 04/27/1993 | US5205351 Process for vaporizing a liquid, heat exchanger therefor, and application thereof to an apparatus for air distillation with a double column |
| 04/27/1993 | US5205127 Cryogenic process for producing ultra high purity nitrogen |
| 04/27/1993 | US5205042 Process for adjusting the verticality of an article disposed in a closed envelope and assembly for carrying this process |
| 04/25/1993 | CA2081279A1 Process for supplying nitrogen from an on-site plant |
| 04/21/1993 | EP0538118A1 Improved cryogenic distallation process for the production of oxygen and nitrogen |
| 04/21/1993 | EP0538117A1 Process and Apparatus for the mixed production of high and low purity oxygen |
| 04/20/1993 | US5204075 Process for the purification of the inert gases |
| 04/20/1993 | CA1316453C Double expanded metal distillation tray |
| 04/14/1993 | CN1071001A Process and apparatus for production of high compressed oxygen with air distillation |
| 04/14/1993 | CN1071000A Process and apparatus for air distillation and application in feeding gas to steel mill |
| 04/13/1993 | US5202096 Apparatus for low temperature purification of gases |
| 04/13/1993 | CA2049646C Enhanced recovery of argon from cryogenic air separation cycles |
| 04/13/1993 | CA2037255C Production of ultra-high purity oxygen from cryogenic air separation plants |
| 04/11/1993 | CA2080281A1 Cryogenic rectification system for producing high purity oxygen |
| 04/07/1993 | EP0535752A1 Method for liquefying natural gas |
| 03/31/1993 | EP0534739A1 Catalytic distillation structure |
| 03/31/1993 | CN1070468A Process and apparatus for preparation of carbon monoxide and hydrogen |
| 03/30/1993 | US5197296 Cryogenic rectification system for producing elevated pressure product |
| 03/30/1993 | CA1315188C2 Gas recovery process |
| 03/24/1993 | CA2078908A1 Catalytic distillation structure |
| 03/23/1993 | US5195324 Cryogenic rectification system for producing nitrogen and ultra high purity oxygen |
| 03/18/1993 | DE4210638A1 High purity hydrogen and carbon mon:oxide recovery from dry gas mixt. - by one stage partial condensation and purificn. giving high yield at reduced cost |
| 03/17/1993 | EP0532429A1 Gas refrigeration process in an air gas exploitational installation and the installation itself |
| 03/17/1993 | EP0532387A1 Process and installation for the production of carbon monoxide and hydrogen |
| 03/17/1993 | EP0532155A1 Cryogenic process for producing ultra high purity nitrogen |
| 03/10/1993 | EP0531182A1 Process and plant for distilling air and application in the feeding of gas to steel plants |
| 03/04/1993 | WO1993004327A1 Method of separating higher-boiling hydrocarbons out of a mixture of gases |
| 03/04/1993 | DE4129014A1 Crude argon refining from Lachmann stage of air fractionation - by purely cryogenic removal of oxygen@ and nitrogen@ in fractional crystallisation column using liq. nitrogen@ |
| 03/04/1993 | DE4129013A1 High purity argon recovery using simple and safe method - by purely cryogenic treatment of crude argon from air fractionation using liq. nitrogen@ to remove oxygen@ and nitrogen@ |
| 03/04/1993 | CA2115918A1 Process for separating higher hydrocarbons from a gas mixture |
| 03/03/1993 | CN1069566A Cryogenic rectification method for producing refined argon |
| 02/25/1993 | DE4127406A1 Verfahren zum abtrennen hoeherer kohlenwasserstoffe aus einem gasgemisch A method of high-degree hydrocarbons separated from a gas mixture |
| 02/24/1993 | EP0528331A1 Cryogenic rectification system for enhanced argon production |
| 02/24/1993 | EP0528320A1 Process for the recovery of C2+ or C3+ hydrocarbons |
| 02/24/1993 | CN1069329A Method of and apparatus for seperating air by rectification |
| 02/24/1993 | CN1069318A System and method for integration of combustor-tubine units and compressors |
| 02/23/1993 | US5189001 Used for separation of components |
| 02/17/1993 | EP0527501A1 Air rectification process and apparatus |
| 02/16/1993 | US5186007 Controlled process for xenon concentration |
| 02/15/1993 | CA2075737A1 Process and apparatus for air fractionation by rectification |
| 02/10/1993 | CN1068883A Air separation method for supplying gaseous oxygen in accordance with variable demand pattern |
| 02/09/1993 | US5185139 Removal of particulate matter and trace contaminatnts; separation; liquifying carbon dioxide; distillation |
| 02/03/1993 | EP0345354B1 Process for purifying nitrogen-fluoride |
| 01/27/1993 | EP0524785A1 Air separation |
| 01/27/1993 | EP0524435A2 Compressor supercharger with evaporative cooler |
| 01/19/1993 | US5180570 Integrated process for making methanol and ammonia |
| 01/13/1993 | CN1067957A Air separating method and equipment |
| 01/13/1993 | CN1067956A Process and apparatus for producing nitrogen for ultra-high purity |
| 12/30/1992 | EP0520738A1 Production of nitrogen of ultra-high purity |
| 12/30/1992 | EP0520382A1 Cryogenic rectification method for producing refined argon |
| 12/30/1992 | EP0386248B1 Condenser/evaporator |
| 12/30/1992 | CN1019691B Process and apparatus for producing nitrogen from air |
| 12/30/1992 | CN1019690B Process and apparatus for air-seperating |
| 12/30/1992 | CN1019689B Air separation process and apparatus for high argon recovery and moderate pressure nitrogen recovery |
| 12/25/1992 | CA2069380A1 Method for removing permanent gases and light hydrocarbons from waste and process gas streams and petrochemical processes |
| 12/25/1992 | CA2064674A1 Process and apparatus for producing nitrogen of ultra-high purity |