| 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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| 10/05/1994 | CN1093158A Method and apparatus for producing oxygen and/or nitrogen |
| 10/04/1994 | US5351492 Distillation strategies for the production of carbon monoxide-free nitrogen |
| 10/04/1994 | US5351491 Process for obtaining high-purity hydrogen and high-purity carbon monoxide |
| 09/28/1994 | CN1092855A Single column cryogenic rectification system for producing nitrogen gas at elevated pressure and high purity |
| 09/27/1994 | US5349827 Process for the construction of a cryogenic unit for the separation of gas, cryogenic unit, subassembly and transportable assembly for the construction of such a unit |
| 09/27/1994 | US5349824 Process for the mixed production of high and low purity oxygen |
| 09/27/1994 | US5349822 Method and apparatus for the production of ultra-high purity nitrogen |
| 09/24/1994 | CA2119597A1 Process and production facility for producing gaseous oxygen and/or gaseous nitrogen under pressure and by air distillation |
| 09/22/1994 | DE4308509A1 Heat exchanger for two-phase fluids |
| 09/21/1994 | CN1092519A Process for maximizing the recovery of argon from an air separation system at high argon recovery rates |
| 09/20/1994 | US5348456 Helical dry screw expander with sealing gas to the shaft seal system |
| 09/14/1994 | EP0615105A1 Air separation |
| 09/14/1994 | EP0614991A1 A diluted solution of a hydride in liquid nitrogen |
| 09/13/1994 | US5345773 Method and apparatus for the production of ultra-high purity nitrogen |
| 09/13/1994 | US5345772 Single column distillative separation employing bottom additives |
| 09/13/1994 | CA2118899A1 Integration of combustor-turbine units and integral-gear pressure processors |
| 09/07/1994 | CN2176179Y Filler for air separator |
| 09/06/1994 | US5344627 Process for removing carbon dioxide from combustion exhaust gas |
| 09/06/1994 | CA2115608A1 Carbon dioxide recovery process |
| 08/31/1994 | EP0612968A1 Natural gas liquefaction pretreatment process |
| 08/31/1994 | EP0612967A1 Process and installation for the production of oxygen and/or nitrogen under pressure |
| 08/31/1994 | EP0612554A1 Purification method and apparatus |
| 08/31/1994 | CN1091515A Cryogenic helium production system |
| 08/31/1994 | CN1091331A Purification system using heat of compression |
| 08/30/1994 | US5341647 Porcess and apparatus for the production of high pressure nitrogen and oxygen |
| 08/30/1994 | US5341646 Triple column distillation system for oxygen and pressurized nitrogen production |
| 08/24/1994 | EP0611936A1 Process and installation for producing ultrapure nitrogen by air destillation |
| 08/24/1994 | EP0611935A1 Process to produce a krypton/xenon enriched stream directly from the main air distillation column |
| 08/24/1994 | CN1025730C Cryogenic saparation of gaseous mixtures |
| 08/23/1994 | US5339648 Distillation system with partitioned column |
| 08/23/1994 | US5339641 From a nitrogen-methane feed |
| 08/23/1994 | CA1331517C Process for gaining electric energy in addition to producing molten pig iron and an arrangement for carrying out the process |
| 08/17/1994 | EP0611218A1 Process and installation for producing oxygen under pressure |
| 08/17/1994 | EP0610972A2 Process for preparing nitrogen |
| 08/17/1994 | CN1090921A Simplified apparatus for producing liquid nitrogen |
| 08/17/1994 | CN1090836A Process for producing hydrocarbon partial oxidation products |
| 08/16/1994 | US5337571 Process and installation for the production of oxygen gas under high pressure by air distillation |
| 08/16/1994 | US5337570 Cryogenic rectification system for producing lower purity oxygen |
| 08/16/1994 | US5337569 Process and installation for the transfer of liquid |
| 08/11/1994 | DE4303771A1 Process and equipment for producing liquid nitrogen |
| 08/10/1994 | EP0609814A1 Process for maximizing the recovery of argon from an air separation system at high argon recovery rates |
| 08/10/1994 | CA2115129A1 Process and plant for the production of ultrahigh purity nitrogen by air distillation |
| 08/09/1994 | US5335504 Carbon dioxide recovery process |
| 08/02/1994 | US5333683 Indirect heat exchanger |
| 08/02/1994 | US5333463 Removal of carbon dioxide and water with liquid phase adsorption by zeolite; vaporization, distillation; withdrawal as high and medium purity |
| 08/02/1994 | US5333462 Process and apparatus for the purification of hydrogen by cryogenic treatment of a gas containing the same |
| 08/02/1994 | CA2114573A1 Process for maximizing the recovery of argon from an air separation system at high argon recovery rates |
| 07/28/1994 | DE4302038A1 Liquid nitrogen producing appts., e.g. for SCM-NMR |
| 07/27/1994 | EP0607979A1 Single column cryogenic rectification system for producing nitrogen gas at elevated pressure and high purity |
| 07/27/1994 | EP0607887A2 Apparatus and process for the low temperature air separations and liquid distributor for a mass transfer column |
| 07/26/1994 | US5332424 Hydrocarbon fractionation by adsorbent membranes |
| 07/26/1994 | US5331818 Air separation |
| 07/22/1994 | CA2113864A1 Single column cryogenic rectification system for producing nitrogen gas at elevated pressure and high purity |
| 07/20/1994 | EP0607006A1 Plate fin heat exchanger built-in type multi-stage thermosiphon |
| 07/19/1994 | US5330956 Poisoning-resistant catalyst, process for production thereof, and process for using said catalyst |
| 07/19/1994 | US5329777 Cryogenic storage and delivery method and apparatus |
| 07/19/1994 | US5329776 Process and apparatus for the production of gaseous oxygen under pressure |
| 07/19/1994 | US5329775 Carbon dioxide |
| 07/19/1994 | US5329774 Method and apparatus for separating C4 hydrocarbons from a gaseous mixture |
| 07/13/1994 | EP0606081A1 Purification system using heat of compression |
| 07/13/1994 | EP0606027A1 Air distillation process and plant for producing at least a high pressure gaseous product and at least a liquid |
| 07/13/1994 | CN1089184A Improved packed column distillation system |
| 07/12/1994 | US5329443 Two-phase method for real time process control |
| 07/12/1994 | US5327730 Method and apparatus for liquifying natural gas for fuel for vehicles and fuel tank for use therewith |
| 07/12/1994 | US5327729 Simplified apparatus for producing liquid nitrogen |
| 07/12/1994 | CA2049499C Argon recovery from partial oxidation based ammonia plant waste gases |
| 07/07/1994 | CA2112823A1 Purification system using heat of compression |
| 07/06/1994 | EP0605262A1 Process and apparatus for the production of gaseous oxygen under pressure |
| 07/06/1994 | CA2112831A1 Production process and facility of at least one pressure gaseous product and at least one liquid by air distillation |
| 07/05/1994 | US5326929 Absorption process for hydrogen and ethylene recovery |
| 07/05/1994 | US5325674 Process for the production of nitrogen by cryogenic distillation of atmospheric air |
| 07/05/1994 | US5325673 Natural gas liquefaction pretreatment process |
| 07/05/1994 | US5325672 Process for the purification of gases |
| 07/01/1994 | CA2112499A1 Process and facility for the production of gaseous oxygen under pressure |
| 06/29/1994 | EP0604102A1 Cryogenic air separation process and apparatus |
| 06/28/1994 | US5323616 Process for cooling a gas in an apparatus for exploiting gases present in the air |
| 06/22/1994 | CN1088301A Method and apparatus for producing of unpure oxygen |
| 06/21/1994 | US5321954 Streaming heat exchanger and apparatus for air distillation comprising such an exchanger |
| 06/21/1994 | US5321953 Cryogenic rectification system with prepurifier feed chiller |
| 06/21/1994 | US5321952 Separation, recovering by solvent extraction, absorption, desorption, refluxing; light components from hydrocarbons |
| 06/21/1994 | US5321946 Method and system for a condensing boiler and flue gas cleaning by cooling and liquefaction |
| 06/15/1994 | CN1025068C Process and unit of seperating air by rectification |
| 06/15/1994 | CN1025067C Process and unit of seperating air by rectification |
| 06/09/1994 | WO1994012837A1 Ultra-high purity monosilane producing process and unit |
| 06/08/1994 | EP0600513A1 Cryogenic, helium production system |
| 06/07/1994 | US5317862 Air separation |
| 05/31/1994 | US5315833 Having an intermediate outlet between the two reboilers of the upper distillation column to extract low purity stream; high purity recovered at the bottom; efficiency |
| 05/31/1994 | CA1329910C Cryogenic process for simultaneous selective desulfurization and degazolization of a gazeous mixture mainly made of methane and of some h_s and c_ or higher hydrocarbons |
| 05/25/1994 | EP0598382A1 Improved packed column distillation system |
| 05/24/1994 | US5315521 Chemical process optimization method |
| 05/24/1994 | US5313802 Krypton and xenon concentrated in sump while methane is rejected in gaseous oxygen product |
| 05/24/1994 | US5313800 Computerized process control by monitoring concentration of nitrogen in upper column between feed point and argon column, while using high pressure column with nitrogen-rich reflux fluid which can wash vapors in low pressure argon column |
| 05/24/1994 | CA2051076C Triple distillation column nitrogen generator with plural reboiler/condensers |
| 05/18/1994 | CA2103221A1 Packed column distillation system |
| 05/17/1994 | US5311744 Cryogenic air separation process and apparatus |
| 05/17/1994 | CA2048146C Production of nitrogen free of light impurities |
| 05/17/1994 | CA2045740C Cryogenic air separation system with dual temperature feed turboexpansion |
| 05/17/1994 | CA2045739C Cryogenic air separation system with dual product side condenser |
| 05/11/1994 | WO1994010265A1 Process for recovering olefins from cat-cracked gas without accumulating undesirable oxides of nitrogen |
| 05/11/1994 | EP0596470A1 Process for obtaining very pure liquid methane |