Absorbent for the selective removal of hydrogen sulfide

An absorbent for selective removal of hydrogen sulfide from a fluid stream comprises an aqueous solution comprising a) a tertiary amine; b) an aminic pH promoter selected from the compounds mentioned in the description; where the molar ratio of b) to a) is in the range from 0.05 to 1.0; and c) an ac...

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Bibliographic Details
Main Authors Katz, Torsten, Deglmann, Peter, Sieder, Georg, Notz, Ralf, Vorberg, Gerald, Ingram, Thomas, Gruenanger, Christian
Format Patent
LanguageEnglish
Published 14.04.2020
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:An absorbent for selective removal of hydrogen sulfide from a fluid stream comprises an aqueous solution comprising a) a tertiary amine; b) an aminic pH promoter selected from the compounds mentioned in the description; where the molar ratio of b) to a) is in the range from 0.05 to 1.0; and c) an acid having a pKA of less than 6 in such an amount that the pH of the aqueous solution measured at 120° C. is 7.9 to less than 8.8. Also described is a process for removing acidic gases from a fluid stream, in which the fluid stream is contacted with the absorbent. The absorbent is notable for a low regeneration energy.
Bibliography:Application Number: US201615763604