| 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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| 04/04/1989 | US4818262 High-yield argon production |
| 04/04/1989 | US4817394 Optimized intermediate height reflux for multipressure air distillation |
| 04/04/1989 | US4817393 Companded total condensation loxboil air distillation |
| 04/04/1989 | US4817392 Process for the production of argon |
| 03/29/1989 | CN1031981A Process of producing a gas for the synthesis of ammonia |
| 03/22/1989 | EP0307983A1 Process for obtaining an ammonia synthesis gas |
| 03/22/1989 | EP0307864A1 Process for the recovery of hydrogen/heavy hydrocarbons from hydrogen-lean feed gases |
| 03/21/1989 | US4813988 Copper-containing packing |
| 03/21/1989 | US4813987 Mercury vapor-containing, aluminum cryogenic heat exchanger |
| 03/21/1989 | US4813986 Process for the low temperature deriming of cryogenic heat exchangers |
| 03/15/1989 | EP0306518A1 Production of high purity oxygen with low energy and increased delivery pressure. |
| 03/14/1989 | CA1251048A1 Process for producing by-product oxygen from turbine power generation |
| 02/22/1989 | EP0304355A1 Method of using an external cold source in an air separation apparatus |
| 02/21/1989 | US4806136 Air separation method with integrated gas turbine |
| 02/21/1989 | US4805414 Process to recover hydrogen-free higher boiling synthesis gas component |
| 02/21/1989 | US4805413 Process for cryogenically separating natural gas streams |
| 02/21/1989 | US4805412 Cryogenic distillation of air |
| 02/21/1989 | CA1250224A1 Process for the separation of c in2 xx, c in3 xx or c in4 xx hydrocarbons |
| 02/21/1989 | CA1250223A1 Process for obtaining c in2 xx or c in3 xx hydrocarbons |
| 02/21/1989 | CA1250222A1 Process for the separation of c in2 xx or c in3 xx hydrocarbons from a pressurized hydrocarbon stream |
| 02/21/1989 | CA1250221A1 Separation of c in3 xx hydrocarbons by absorption and rectification |
| 02/21/1989 | CA1250220A1 Process for the separation of a c in2 xx hydrocarbon fraction from natural gas |
| 02/15/1989 | EP0303492A2 Liquefied gas boilers |
| 02/15/1989 | EP0302888A1 Companded total condensation loxboil air distillation. |
| 02/15/1989 | CN1031131A Method and apparatus for air separation through distillation |
| 02/09/1989 | EP0302888A4 Companded total condensation loxboil air distillation. |
| 02/08/1989 | EP0302316A1 Process for the production of argon |
| 02/08/1989 | CN1030929A Method for partial condensation of hydrocarbon gas mixtures |
| 02/07/1989 | CA1249769A1 Separating hydrocarbon gases |
| 02/01/1989 | EP0301515A2 Process and apparatus to produce ultra high purity oxygen from a gaseous feed |
| 02/01/1989 | EP0301514A2 Process and apparatus to produce ultra high purity oxygen from a liquid feed |
| 01/25/1989 | EP0190355B1 Apparatus for producing high-purity nitrogen gas |
| 01/24/1989 | CA1249215A1 Recovery of c in3 xxhydrocarbons |
| 01/24/1989 | CA1249116A1 Methods and apparatus for purifying inert gas streams |
| 01/18/1989 | EP0299751A2 Process and apparatus for controlling argon column feedstreams |
| 01/18/1989 | EP0299364A2 Process and apparatus for air separation by rectification |
| 01/18/1989 | EP0299157A2 Method for partial condensation of hydrocarbon gas mixtures |
| 01/11/1989 | EP0144430B1 Apparatus for producing high-purity nitrogen gas |
| 01/10/1989 | US4796431 Nitrogen partial expansion refrigeration for cryogenic air separation |
| 01/03/1989 | CA1248007A1 Process for recovering c.sub.4 hydrocarbons using a dephlegmator |
| 01/03/1989 | CA1247976A1 Refrigeration from expansion of transmission pipeline gas |
| 12/27/1988 | US4793841 Process and apparatus for fractionation of a gaseous mixture employing side stream withdrawal, separation and recycle |
| 12/22/1988 | DE3825155A1 Vortex tube with ultrasonic inflow |
| 12/20/1988 | US4792502 Apparatus for producing nitrogen |
| 12/15/1988 | WO1988009909A1 Enhanced argon recovery from intermediate linboil |
| 12/14/1988 | EP0191862B1 Apparatus for producing high-purity nitrogen gas |
| 12/13/1988 | US4790866 Air separation |
| 12/13/1988 | CA1246436A1 Hybrid nitrogen generator with auxiliary reboiler drive |
| 12/13/1988 | CA1246435A1 Process to produce ultrahigh purity oxygen |
| 12/13/1988 | CA1246434A1 Air separation process to produce elevated pressure oxygen |
| 12/06/1988 | CA1245972A1 Hybrid nitrogen generator with auxiliary column drive |
| 11/29/1988 | CA1245627A1 Heat exchanger, and its use in an air separation unit |
| 11/29/1988 | CA1245546A1 Separation of hydrocarbon mixtures |
| 11/22/1988 | US4785879 Parallel wrapped tube heat exchanger |
| 11/22/1988 | US4785621 Air bottoming cycle for coal gasification plant |
| 11/17/1988 | WO1988008948A1 Process for recovering helium from a natural gas stream |
| 11/17/1988 | WO1988008833A1 Cryogenic method for simultaneous selective desulphuration and stripping of a gas mixture consisting mainly of methane and containing also h2s and c2-hydrocarbons and more |
| 11/17/1988 | EP0291401A1 Cryogenic process for the simultaneous selective desulfurization and degasolination of a gaseous mixture principally consisting of methane and also H2S and C2+ hydrocarbons |
| 11/15/1988 | US4784677 Process and apparatus for controlling argon column feedstreams |
| 11/09/1988 | EP0289877A1 Gas separation process |
| 11/09/1988 | EP0175791B1 Apparatus for producing high-purity nitrogen gas |
| 11/08/1988 | US4783210 Waste or air expasion for refrigeration; secondary distillation column for pure oxygen |
| 11/08/1988 | US4783209 Cryogenic air distillation with companded nitrogen refrigeration |
| 11/08/1988 | US4783208 Air separation |
| 11/08/1988 | CA1244340A1 Carbon dioxide liquification system |
| 11/02/1988 | EP0288912A1 Process for recovery and purification of ethylene |
| 11/01/1988 | US4781739 Distillation, stills, compressed air |
| 11/01/1988 | US4781033 Heat exchanger for a fast cooldown cryostat |
| 10/25/1988 | US4780298 Ammonia synthesis |
| 10/25/1988 | US4780118 Serially oriented countercurrent flow stripping and absorbing columns |
| 10/18/1988 | US4778498 Process to produce high pressure methane gas |
| 10/18/1988 | US4777803 Air partial expansion refrigeration for cryogenic air separation |
| 10/12/1988 | EP0286314A1 Air separation |
| 10/04/1988 | US4775399 Air fractionation improvements for nitrogen production |
| 09/28/1988 | CN87108012A Process and arrangement for gaining electric energy in addition to producing molten pig iron |
| 09/21/1988 | EP0283213A2 Process for the Recovery of Argon |
| 09/20/1988 | US4772301 Process for the separation of C5+ hydrocarbons from a gaseous stream |
| 09/14/1988 | EP0282321A2 Power generation |
| 09/14/1988 | EP0282165A1 Method and plant for recovering hydrogen and argon from ammonia synthesis purge gas |
| 09/13/1988 | US4770683 Distillation process with high thermo-dynamic efficiencies |
| 09/07/1988 | WO1988006705A1 Low energy high purity oxygen increased delivery pressure |
| 09/07/1988 | CN88100540A Method of recovering propane and heavy hydrocarbon from hydrocarbon gas |
| 09/06/1988 | US4769055 Companded total condensation reboil cryogenic air separation |
| 08/30/1988 | US4767606 Process and apparatus for producing nitrogen |
| 08/30/1988 | US4767428 Nitrogen removal system |
| 08/24/1988 | EP0279500A2 Highly pure nitrogen gas producing apparatus |
| 08/23/1988 | US4765814 Temperature difference in cole end of heat exchanger; energy loss reduced |
| 08/16/1988 | US4763725 Parallel wrapped tube heat exchanger |
| 08/11/1988 | WO1988005893A1 Companded total condensation reboil cryogenic air separation |
| 08/09/1988 | US4762543 For flooding |
| 08/09/1988 | US4762542 Distillation |
| 08/02/1988 | US4761167 Hydrocarbon recovery from fuel gas |
| 07/27/1988 | EP0134243B1 Apparatus and method for recovering light hydrocarbons from hydrogen containing gases |
| 07/26/1988 | US4759786 Separation of gaseous mixtures |
| 07/20/1988 | EP0275029A2 Multi-zone boiling process and apparatus |
| 07/19/1988 | US4758258 Cryogenically separation |
| 07/14/1988 | WO1988005148A1 Air partial expansion refrigeration for cryogenic air separation |
| 07/12/1988 | US4756731 Triple pressure distillation of air, heat exchanging, withdrawing nitrogen |
| 07/12/1988 | US4756730 Passing by-product gas stream through cooling and separation stages to separate high purity hydrogen from condensed bottom fraction, feeding through methane absorber |
| 07/12/1988 | US4756167 Helium cooling apparatus |