| 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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| 06/24/1992 | CN2108256U Liquefied oxygen self-circulation adsorption system for air separator |
| 06/23/1992 | US5123947 Cryogenic process for the separation of air to produce ultra high purity nitrogen |
| 06/23/1992 | US5123946 Cryogenic nitrogen generator with bottom reboiler and nitrogen expander |
| 06/23/1992 | US5123249 Air separation |
| 06/18/1992 | CA2057509A1 Cold box with corrugated-rippled lining |
| 06/17/1992 | EP0393029B1 Processing nitrogen-rich, hydrogen-rich, and olefin-rich gases with physical solvents |
| 06/17/1992 | DE4114303C1 Recovery of liq. oxygen@ from air surrounding air-borne device e.g. aircraft - includes cooling air compressing, expanding, sepg. oxygen@ for cooling purposes, passing liq. nitrogen@ |
| 06/16/1992 | US5122175 Method of and apparatus for producing superpure nitrogen |
| 06/16/1992 | US5122174 Having a fixed volume distribution zone containing hardway finning above bertical corrugaed fins and controlling the concentration of liquid phase and flow; separation of air |
| 06/16/1992 | US5122173 Cryogenic production of krypton and xenon from air |
| 06/10/1992 | EP0489617A1 Process and plant for destilling air for obtaining gaseous oxygen in variable quantities |
| 06/09/1992 | US5120338 Method for separating a multi-component feed stream using distillation and controlled freezing zone |
| 06/09/1992 | CA1302866C Air separation |
| 06/03/1992 | CN1016894B Process for purifying gas flow by nitrogen washing |
| 06/02/1992 | CA2005843C Apparatus and method for separating air |
| 05/29/1992 | CA2056199A1 Treatment of gas |
| 05/27/1992 | DE4117923C1 Device for liquefaction of air to obtain oxygen@, for aircraft - comprises cooling air in prim. cooler, compressing, expanding and liquefying air, sepg. nitrogen@ and storing oxygen@ |
| 05/26/1992 | US5116396 Membrane system |
| 05/26/1992 | CA1301630C Method for the recovery of low purity carbon dioxide |
| 05/20/1992 | EP0485612A1 Method of and device for producing nitrogen of high purity |
| 05/20/1992 | CN1016676B Process of producing gas for synthetic ammonia |
| 05/19/1992 | US5114452 Cryogenic air separation system for producing elevated pressure product gas |
| 05/19/1992 | US5114451 Liquefied natural gas processing |
| 05/19/1992 | US5114450 Compression, condensation, distillation |
| 05/19/1992 | US5114449 Enhanced recovery of argon from cryogenic air separation cycles |
| 05/14/1992 | WO1992008682A1 Sequence for separating propylene from cracked gases |
| 05/12/1992 | CA1300489C Multi-zone boiling process and apparatus |
| 05/06/1992 | EP0483302A1 Cryogenic air separation method for the production of oxygen and medium pressure nitrogen. |
| 05/06/1992 | EP0313581B1 Nitrogen partial expansion refrigeration for cryogenic air separation |
| 05/06/1992 | EP0306518B1 Production of high purity oxygen with low energy and increased delivery pressure |
| 05/05/1992 | US5110569 Low temperature purification of gases |
| 04/29/1992 | EP0482863A1 PSA Employing high purity purging |
| 04/29/1992 | CN1016460B Method and apparatus for air separation through distillation |
| 04/28/1992 | US5108476 Cryogenic air separation system with dual temperature feed turboexpansion |
| 04/24/1992 | CA2052174A1 Psa employing high purity purging |
| 04/22/1992 | EP0481497A1 Separation of nitrogen and methane with residue turboexpansion |
| 04/21/1992 | US5106399 Argon purification system |
| 04/21/1992 | US5106398 Air separation |
| 04/21/1992 | CA1298958C Process for removal of carbon dioxide from mixtures containing carbon dioxide and methane |
| 04/19/1992 | CA2053592A1 Process for vertically adjusting an element in a sealed casing and apparatus therefor |
| 04/15/1992 | CN1016269B Cryogenic recovery of high purity hydrogen |
| 04/15/1992 | CN1016268B Process for producing high-purity nitrogen |
| 04/14/1992 | CA1298777C Process and apparatus for producing nitrogen under pressure |
| 04/14/1992 | CA1298776C Process for separation of hydrocarbon mixtures |
| 04/14/1992 | CA1298774C Air separation |
| 04/08/1992 | EP0479486A1 Separation of gas mixtures |
| 04/07/1992 | CA1298540C Process for separation of hydrocarbon gases |
| 04/07/1992 | CA1298539C Process for separation of hydrocarbon gases |
| 04/03/1992 | CA2052592A1 Separation of gas mixtures |
| 04/02/1992 | DE4030750A1 Combination triple duty compressor for prodn. of nitrogen@ and oxygen@ - has multiple shaft machine providing compression for feed air, first main stage, and coolant nitrogen streams |
| 04/02/1992 | DE4030749A1 Low temp. sepn. of argon, oxygen and nitrogen from air - using intermediate liq. oxygen fraction as cooling medium for the argon finishing column |
| 03/31/1992 | US5100635 Multistage, oxidation, reduction, cryogenic distillation, purification |
| 03/31/1992 | US5100448 Separation of air, multisection column |
| 03/31/1992 | US5100447 Pressure swing adsorption system |
| 03/31/1992 | US5100446 Crude neon production system |
| 03/31/1992 | CA1298065C Processing nitrogen-rich, hydrogen-rich, and olefin- rich gases with physical solvents |
| 03/25/1992 | EP0476989A1 Triple distillation column nitrogen generator with plural reboiler/condensers |
| 03/25/1992 | CN1059670A Smoke-eliminating and dust removing device and method thereof |
| 03/24/1992 | US5098457 Multistage condensation and compression of air |
| 03/24/1992 | US5098456 Distillation, condensation, expansion and separation with withdrawal |
| 03/24/1992 | CA1297913C Hydrocarbon gas processing to recover propane and heavier hydrocarbons |
| 03/24/1992 | CA1297781C Hydrocarbon recovery from fuel gas |
| 03/24/1992 | CA1297780C Process to produce high pressure methane gas |
| 03/17/1992 | CA1297398C Carbon dioxide absorption methanol process |
| 03/11/1992 | CN2098658U Separating and recovering unit for semiconductor refrigeration |
| 03/11/1992 | CN1059294A Carbon dioxide production from combustion exhaust gases with nitrogen and argon by-product recovery |
| 03/10/1992 | CA1296992C Air separation |
| 03/04/1992 | EP0473491A1 Cryogenic nitrogen generator with bottom reboiler and nitrogen expander |
| 03/04/1992 | EP0473078A1 Enhanced recovery of argon from cryogenic air separation cycles |
| 03/03/1992 | US5092132 Compression, purification, distillation, heat exchanging; gas and liquid phases; double column; Joule-Thomson expansion |
| 03/03/1992 | CA1296616C Process for recovering raw natural gas liquids |
| 03/03/1992 | CA1296615C Air separation |
| 02/25/1992 | US5091119 Tray with elongated aperture for gas passageway |
| 02/25/1992 | US5090977 Sequence for separating propylene from cracked gases |
| 02/25/1992 | US5090973 Psa employing high purity purging |
| 02/23/1992 | CA2049519A1 Cryogenic nitrogen generator with bottom reboiler and nitrogen expander |
| 02/18/1992 | CA1295934C2 Process to produce high pressure methane gas |
| 02/18/1992 | CA1295933C Liquid carbon dioxide recovery from gas mixtures with methane |
| 02/18/1992 | CA1295932C Process to produce cold helium gas for liquefaction |
| 02/18/1992 | CA1295931C Process to produce helium gas |
| 02/13/1992 | DE4025138A1 Defrosting liquefied gas vaporiser - involves directing some gas from after-heater through group being defrosted |
| 02/12/1992 | CN1058644A Cryogenic air separation system with dual product side condenser |
| 02/12/1992 | CN1058643A Boiling liquefied gas |
| 02/12/1992 | CN1058545A Hybrid prepurifier for cryogenic air separation plants |
| 02/11/1992 | CA1295544C Dephlegmator process for carbon dioxide-hydrocarbon distillation |
| 02/09/1992 | CA2048293A1 Pumped liquid oxygen air separation cycles |
| 02/08/1992 | CA2048432A1 Nitrogen production apparatus |
| 02/05/1992 | EP0469781A2 Separation of carbon dioxide and nitrogen from combustion exhaust gas with nitrogen and argon by-product recovery |
| 02/05/1992 | EP0469780A1 Boiling liquefied gas |
| 02/05/1992 | CN1058468A Cryogenic air separation system with dual feed air side condensers |
| 02/05/1992 | CN1058467A Cryogenic air separation system with dual temperature feed turboexpansion |
| 02/05/1992 | CN1058466A Cryogenic air separation system for producing elevated pressure product gas |
| 02/01/1992 | CA2048254A1 Boiling liquefied gas |
| 01/29/1992 | CN1058266A Air separation |
| 01/28/1992 | US5084081 Low temperature air fractionation accommodating variable oxygen demand |
| 01/22/1992 | EP0467860A1 Method for the recovery of ethylene and propylene from a gas produced by the pyrolysis of hydrocarbons |
| 01/22/1992 | EP0467395A1 Variable density structured packing cryogenic distillation system |
| 01/21/1992 | US5082482 Process and apparatus for the production of gaseous oxygen with a variable flow by air distillation |
| 01/21/1992 | US5082481 Refrigeration |
| 01/21/1992 | US5081845 Integrated air separation plant - integrated gasification combined cycle power generator |