Method for processing a natural gas with extraction of the solvent contained in the acid gases

The natural gas arriving through pipe 1 is deacidified by being brought into contact with a solvent in zone C. The solvent charged with acid compounds is regenerated in zone R. The acid gases, released into pipe 5 upon regeneration, include a quantity of solvent. The method enables the solvent conta...

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Bibliographic Details
Main Authors BARRERE-TRICCA CECILE, CADOURS RENAUD, LECOMTE FABRICE, MAGNA LIONEL
Format Patent
LanguageEnglish
Published 02.12.2008
Subjects
ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL
CHEMISTRY
FIRELIGHTERS
FUELS
FUELS NOT OTHERWISE PROVIDED FOR
LIQUEFIED PETROLEUM GAS
LUBRICANTS
METALLURGY
NATURAL GAS
PEAT
PERFORMING OPERATIONS
PETROLEUM, GAS OR COKE INDUSTRIES
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K
TECHNICAL GASES CONTAINING CARBON MONOXIDE
TRANSPORTING
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Summary:The natural gas arriving through pipe 1 is deacidified by being brought into contact with a solvent in zone C. The solvent charged with acid compounds is regenerated in zone R. The acid gases, released into pipe 5 upon regeneration, include a quantity of solvent. The method enables the solvent contained in the acid gases to be extracted. In zone ZA, the acid gases are brought into contact with a non-aqueous ionic liquid whose general formula is Q+ A-, where Q+ designates an ammonium, phosphonium, and/or sulfonium cation, and A- designates an anion able to form a liquid salt. The solvent is removed from the acid gases evacuated through pipe 6. The ionic liquid charged with solvent is regenerated by heating in an evaporator DE. The ionic liquid regenerated is recycled through pipes 8 and 9 to zone ZA. The solvent is evacuated through pipe 13.
Bibliography:Application Number: US20050057011