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| Number | Title | Issue Date |
| 7380413 | Method and installation for separating a mixture of hydrogen and carbon monoxide A method for simultaneously producing hydrogen and carbon monoxide by subjecting synthesis gas to a decarbonation in a decarbonation unit, and to desiccation in a desiccation unit. After the decarbonation and the desiccation, the remaining synthesis gas components a... | 06/03/2008 |
| 7201019 | Light gas component separation from a carbon dioxide mixture A method of separating one or more light components, such as helium, from a carbon dioxide containing stream. A two-phase stream is obtained, at least in part, by cooling a pressurized feed stream to at least partially condense such stream. The stream that is subseq... | 04/10/2007 |
| 6568206 | Cryogenic hydrogen and carbon monoxide production with membrane permeate expander A process for recovering a first component and/or a second component from a multicomponent feed gas mixture containing the first component and the second component includes multiple steps. The first step is to pass the feed gas mixture through a membrane ... | 05/27/2003 |
| 6269657 | Process and apparatus for separating mixtures of hydrogen and carbon monoxide Hydrogen and carbon monoxide are separated from a condensate-containing gaseous mixture thereof by using (a) a "first" stripping column (8) to remove the hydrogen content of the CO-loaded methane stream (6) obtained by washing CO from the gaseous mixture,... | 08/07/2001 |
| 6266976 | Cryogenic H2 and carbon monoxide production with an impure carbon monoxide expander A process for obtaining purified carbon monoxide from a gaseous mixture of hydrogen and carbon monoxide and one or more additional impurities to be removed by one or more vapor-liquid separation devices is provided which includes the steps of providing a ... | 07/31/2001 |
| 6047561 | Process and device for the production of ultra-pure inert gas A device and a process for preparing a high-purity inert gas from air, includes the successive steps of: a) cryogenically distilling compressed air, b) recovering an impure inert fluid containing hydrogen impurities (H2) and residual impurities, c) ... | 04/11/2000 |
| 5956970 | Hydrogen purify improving method and the apparatus for the same Hydrogen gas from an generator (1) is occluded in a hydrogen recovery container (20), thereafter, in the initial stage during which hydrogen gas is released from the hydrogen recovery container (20), initially purged hydrogen gas containing much amount of... | 09/28/1999 |
| 5832747 | Cryogenic adjustment of hydrogen and carbon monoxide content of syngas The molar ratio of hydrogen and carbon monoxide in synthesis gas is changed by partially condensing at least a portion of the feed gas and separating the partially condensed feed mixture by non-fractionating phase separation. Preferably, the partially con... | 11/10/1998 |
| 5609040 | Process and plant for producing carbon monoxide Carbon monoxide is recovered by a cryogenic route from a gas mixture, for example from the tail gas of an operation for scrubbing with nitrogen in the preparation of an ammonia synthesis mixture, this mixture containing carbon monoxide, hydrogen and other... | 03/11/1997 |
| 5499506 | Ultra-high purity monosilane producing process and unit Provided is a process and an apparatus for producing ultra-high purity monosilane. In a preferred embodiment, the process comprises introducing a monosilane feed gas, which also serves as a heat source, to the lower stage of a rectification column which i... | 03/19/1996 |
| 5295356 | Process and apparatus for the production of carbon monoxide and hydrogen The heating and/or the cooling of the three columns is ensured by a closed nitrogen cycle. Carbon monoxide is withdrawn in liquid form from the third column, then is brought through a pump at the pressure of utilization and is warmed under this pressure.... | 03/22/1994 |
| 5082481 | Membrane separation process for cracked gases A process for recovering hydrogen from a cracking effluent wherein a cracking effluent is compressed, and then at least a portion of the hydrogen is separated from the cracking effluent prior to cooling of the cracking effluent to remove lower-boiling com... | 01/21/1992 |
| 4765813 | Hydrogen liquefaction using a dense fluid expander and neon as a precoolant refrigerant The present invention is a process for the liquefaction of hydrogen which utilizes a dense fluid expander and neon as a precoolant refrigerant. In the process, a two phase mixture containing about 85-90% liquid of greater than 95% para-hydrogen is produce... | 08/23/1988 |
| 4654047 | Hybrid membrane/cryogenic process for hydrogen purification The present invention involves a process for recovering hydrogen from a feed gas mixture comprising hydrogen and at least one other component. The feed gas mixture is initially separated in a membrane separation unit to produce a hydrogen-rich stream and ... | 03/31/1987 |
| 4533373 | Separation of CO2 and H2 S from hydrogen containing gas For the purification of hydrocarbon-containing, e.g., methane raw gases containing H2 S and CO2, the raw gas is dried, and separated by rectification into a hydrocarbon-rich overhead fraction containing some H2 S and CO | 08/06/1985 |
| 4482369 | Process for producing a hydrogen-rich gas stream from the effluent of a catalytic hydrocarbon conversion reaction zone A process for the production of a hydrogen-rich gas stream from the effluent of a catalytic hydrocarbon conversion reaction zone is disclosed. A hydrogen-containing vapor phase is recovered from the effluent and subjected to cooling in order to produce a ... | 11/13/1984 |
| 4336044 | Process for separating coal synthesized methane from unreacted intermediate and contaminant gases Gas produced from coal and containing CH4, CO, CO2, H2 and H2 S is contacted with CO2 scrub liquid to form (1) a liquid CO2 stream containing as solutes CH4, H2 S and minor... | 06/22/1982 |
| 4332598 | Process for treating industrial gas stream This invention relates to a method for producing a hydrogen stream and a carbon dioxide stream from a mixed gas feedstock containing hydrogen, carbon dioxide, and contaminant sulfur compounds. The method comprises scrubbing the gas feedstock with a carbon... | 06/01/1982 |
| 4299606 | Recovery of HF and HCl from gaseous mixtures thereof A process is disclosed for recovering HF and HCl in substantially purified form from a gaseous mixture containing HF, HCl and halogenated organic vapors. The process comprises: A. feeding the gaseous mixture to the lower part of a rectification column to ... | 11/10/1981 |
| 4242875 | Hydrogen cryogenic purification system A process is disclosed for the cryogenic purification of industrial by-product gas streams containing recoverable hydrogen. Two feed streams, one of which contains non-readily condensible compounds having boiling points below that of methane, are passed t... | 01/06/1981 |
