| 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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| 07/05/1988 | US4755202 Process and apparatus to produce ultra high purity oxygen from a gaseous feed |
| 07/05/1988 | US4755201 Process for removing lighter volatile impurities from gases |
| 06/29/1988 | EP0272392A2 Process for separation of hydrocarbon gases |
| 06/29/1988 | EP0272391A2 Process for separation of hydrocarbon gases |
| 06/28/1988 | US4753667 Compression of overhead to increase temperature, using compressed overhead to heat bottoms in reboiler |
| 06/23/1988 | DE3643359A1 Method and device for air separation by two-stage rectification |
| 06/22/1988 | EP0271658A2 Process for separation of hydrocarbon mixtures |
| 06/21/1988 | US4752450 Electron beam passing through a pressure step stage; can be rotationally deflected |
| 06/21/1988 | US4752312 Cryogenic gas separation |
| 06/21/1988 | US4752311 Argon recovery from ammonia plant purge gas utilizing a combination of cryogenic and non-cryogenic separating means |
| 06/14/1988 | US4750925 Argon recovery from hydrogen depleted ammonia plant purge gas utilizing a combination of cryogenic and non-cryogenic separating means |
| 06/07/1988 | US4749393 Acid gas removal, dehydration, cryogenic separation |
| 06/01/1988 | EP0269609A1 A process and an arrangement for gaining electric energy in addition to producing molten pig iron |
| 06/01/1988 | EP0269343A2 Air separation |
| 06/01/1988 | EP0269342A2 Air separation |
| 06/01/1988 | EP0147460B1 Cryogenic triple-pressure air separation with lp-to-mp latent-heat-exchange |
| 06/01/1988 | DE3639779A1 Process for extracting CO2 from a CO2-rich natural gas |
| 05/31/1988 | US4747860 Air separation |
| 05/31/1988 | US4747859 Air separation |
| 05/31/1988 | US4747858 Process for removal of carbon dioxide from mixtures containing carbon dioxide and methane |
| 05/31/1988 | US4747448 Heat exchangers |
| 05/26/1988 | DE3639555A1 Process for separating C3+-hydrocarbons from CO2-containing natural gas |
| 05/24/1988 | US4746343 After cooling a raw gas by means of an expander compressor |
| 05/24/1988 | US4746342 Natural gas liquids, nitrogen |
| 05/24/1988 | US4746332 Process for producing high purity nitrogen |
| 05/17/1988 | CA1236767A1 Hydrocarbon gas separation |
| 05/17/1988 | CA1236766A1 Recovery of carbon dioxide from gas mixtures |
| 05/04/1988 | CN87106121A Cryogenic recovery of high purity hydrogen |
| 04/26/1988 | CA1235650A1 Parallel stream heat exchange for separation of ethane and higher hydrocarbons from a natural or refinery gas |
| 04/19/1988 | US4738699 Separation by cryogenic cooling; methane removal by distillation |
| 04/19/1988 | CA1235368A1 Method and apparatus for separating carbon dioxide and other acid gases from methane by the use of distillation and a controlled freezing zone |
| 04/12/1988 | US4737177 Air distillation improvements for high purity oxygen |
| 04/07/1988 | DE3633445A1 Process for separating C2+-hydrocarbons from natural gas |
| 04/06/1988 | EP0262894A2 For the co-production of carbon dioxide and hydrogen |
| 04/06/1988 | EP0262889A2 Argon and nitrogen coproduction process |
| 04/05/1988 | CA1234746A1 Dual dephlegmator process to separate and purify syngas mixtures |
| 03/29/1988 | US4734115 Low pressure process for C3+ liquids recovery from process product gas |
| 03/29/1988 | US4734114 Controlling method of air separator |
| 03/24/1988 | DE3631332A1 Method for processing a fuel gas or synthesis gas |
| 03/22/1988 | US4732598 Dephlegmator process for nitrogen rejection from natural gas |
| 03/22/1988 | US4732597 Compression, rectification |
| 03/22/1988 | US4732596 Gas separation process |
| 03/22/1988 | US4732595 Separation of air by compression and refrigeration |
| 03/22/1988 | US4732583 Gas separation |
| 03/22/1988 | US4732580 Compression and separation of air |
| 03/16/1988 | EP0260002A2 Air separation |
| 03/15/1988 | US4731102 Oxygen gas production apparatus |
| 03/09/1988 | EP0259070A2 Air separation |
| 03/09/1988 | EP0258487A1 Process and apparatus for cleaning and recycling gas |
| 03/08/1988 | US4729217 Combined gas/steam power station plant |
| 02/24/1988 | EP0256814A2 Cryogenic recovery of high purity hydrogen |
| 02/24/1988 | EP0256413A2 Gas stream purification process by nitrogen washing |
| 02/24/1988 | CN87105607A Precess for purifying gas flow by nitrogen washing |
| 02/23/1988 | US4726826 Cooling by heat exchanging, condensation and separation |
| 02/23/1988 | CA1233109A1 Process and apparatus for obtaining pure co |
| 02/16/1988 | USRE32600 Energy efficiency |
| 02/16/1988 | CA1232834A1 Process for devolatilizing natural gas liquids |
| 02/11/1988 | WO1988001037A1 Air distillation improvements for high purity oxygen |
| 02/11/1988 | WO1988000936A1 PROCESS FOR SEPARATING A GAS MIXTURE OF C2+ OR C3+ or C4 HYDROCARBONS |
| 02/11/1988 | DE3626562A1 Process for recovering argon from a gas mixture |
| 02/11/1988 | DE3626561A1 Process for removing C2+- or C3+-hydrocarbons from a gas mixture |
| 02/11/1988 | DE3626560A1 Process for the removal of C4-hydrocarbons from a gas mixture |
| 02/10/1988 | EP0255593A2 Data package communication systems |
| 02/09/1988 | US4723975 Air separation method and apparatus |
| 01/28/1988 | WO1988000677A1 Nitrogen partial expansion refrigeration for cryogenic air separation |
| 01/27/1988 | EP0254278A2 Staged multicomponent refrigerant cycle for a process for recovery of C3+ hydrocarbons |
| 01/26/1988 | US4721164 Method of heat exchange for variable-content nitrogen rejection units |
| 01/19/1988 | US4720294 Dephlegmator process for carbon dioxide-hydrocarbon distillation |
| 01/19/1988 | US4720293 Process for the recovery and purification of ethylene |
| 01/19/1988 | CA1231660A1 Process for the recovery and recycle of effluent gas from the regeneration of particulate matter with oxygen and carbon dioxide |
| 01/13/1988 | EP0252660A2 Method for recovery of natural gas liquids |
| 01/12/1988 | US4718927 Process for the separation of C2+ hydrocarbons from natural gas |
| 01/07/1988 | DE3622145A1 Device for removing condensable components from gases |
| 01/05/1988 | US4717410 Distillation of compressed air |
| 01/05/1988 | US4717409 Liquid vapor contact method and apparatus |
| 01/05/1988 | US4717408 Process for prevention of water build-up in cryogenic distillation column |
| 01/05/1988 | US4717407 Process for recovering helium from a multi-component gas stream |
| 12/29/1987 | US4715874 Retrofittable argon recovery improvement to air separation |
| 12/29/1987 | US4715873 Liquefied gases using an air recycle liquefier |
| 12/29/1987 | US4715433 Reboiler-condenser with doubly-enhanced plates |
| 12/29/1987 | US4715431 Reboiler-condenser with boiling and condensing surfaces enhanced by extrusion |
| 12/29/1987 | CA1230822A1 Dual feed air pressure nitrogen generator cycle |
| 12/29/1987 | CA1230821A1 Process to separate natural gas liquids from nitrogen- containing natural gas |
| 12/29/1987 | CA1230820A1 Process to separate nitrogen from natural gas |
| 12/23/1987 | EP0250390A2 Air-separating device using storage of a product gas in liquefied form |
| 12/22/1987 | US4714487 Low temperature |
| 12/22/1987 | CA1230488A1 Production of ammonia synthesis gas |
| 12/08/1987 | US4711651 Multistage cooling, depressurization |
| 12/01/1987 | US4710214 Process for separation of hydrocarbon gases |
| 12/01/1987 | US4710213 Process for separating CO2 from a gaseous mixture |
| 12/01/1987 | US4710212 Process to produce high pressure methane gas |
| 12/01/1987 | US4710211 Cryogenic process for the selective removal of acidic gases from mixtures of gases by solvents |
| 11/30/1987 | EP0195065A4 Nitrogen production by low energy distillation. |
| 11/24/1987 | US4707994 Gas separation process with single distillation column |
| 11/19/1987 | DE3714897A1 Verfahren zum reinigen von gasen sowie vorrichtung zur durchfuehrung dieses verfahrens A method for purifying gases and apparatus for performing this method |
| 11/18/1987 | CN87100951A Reclaiming argon from hydrogen depletion blowing of sythesis ammonia device using seperation process of hypothermia and non-hypothermia |
| 11/18/1987 | CN86103011A All-dynamic pressured gas bearing hypothermal boost expander |
| 11/17/1987 | US4707171 Rectification |
| 11/17/1987 | US4707170 Staged multicomponent refrigerant cycle for a process for recovery of C+ hydrocarbons |
| 11/11/1987 | EP0245057A2 Helium cooling apparatus |