Gas separation: processes – Liquid contacting – And recycle or reuse of contact liquid for further contact
Reexamination Certificate
2006-01-24
2006-01-24
Lawrence, Frank M. (Department: 1724)
Gas separation: processes
Liquid contacting
And recycle or reuse of contact liquid for further contact
C095S232000, C095S237000, C423S352000
Reexamination Certificate
active
06989047
ABSTRACT:
The invention relates to a process for the absorptive separation of NH3and CH4from a gas under high pressure, which at least contains NH3, H2, N2and CH4, using a high-boiling, physically acting and regenerable solvent which contains homologues of alkylene glycol-alkyl-ether and which also may contain water, the absorbed components NH3, H2, N2and CH4being separated from the laden solvent in at least two further process steps at different pressure rates, thereby withdrawing at least one NH3-rich and at least one CH4-rich gas fraction from the solvent. This process is particularly suitable to be incorporated as unit in an ammonia production plant.
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Liu Vincent
Wyschofsky Michael
Marshall & Melhorn LLC
Uhde GmbH
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