METHOD FOR THE ABSORPTIVE OUTWARD TRANSFER OF AMMONIA AND METHANE OUT OF SYNTHESIS GAS

METHOD FOR THE ABSORPTIVE OUTWARD TRANSFER OF AMMONIA AND METHANE OUT OF SYNTHESIS GAS

The invention relates to a process for the absorptive separation of NH3 and CH4 from a gas under high pressure, which at least contains NH3, H2, N2 and CH4, using a high-boiling, physically acting and regenerable solvent which contains homologues of alkylene glycol-alkyl-ether and which also may con...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LIU, VINCENT, WYSCHOFSKY, MICHAEL
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
AMMONIA
CHEMISTRY
COMPOUNDS THEREOF
CYANOGEN
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Beschreibung
Zusammenfassung:The invention relates to a process for the absorptive separation of NH3 and CH4 from a gas under high pressure, which at least contains NH3, H2, N2 and 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, N2 and CH4 being 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.