PROCESS FOR THE REMOVAL OF ACID GASES, SPECIFICALLY CO2, FROM GASEOUS MIXTURES CONTAINING THEM THROUGH THE USE OF ABSORBENT COMPOSITIONS INCLUDING CYCLIC UREAS AS A PHYSICAL SOLVENT

An absorbent mixture for the removal of acid gases from gas mixtures includes:A) at least one alcohol of general formula R(OH)n, wherein R is an optionally substituted linear or branched alkyl or alkylaromatic group, with 2-20 carbon atoms and n is an integer that varies between 1-20;B) at least one...

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Bibliographic Details
Main Authors DE ANGELIS, Alberto Renato, FIORI, Gianluca
Format Patent
LanguageEnglish
Published 22.08.2024
Subjects
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary:An absorbent mixture for the removal of acid gases from gas mixtures includes:A) at least one alcohol of general formula R(OH)n, wherein R is an optionally substituted linear or branched alkyl or alkylaromatic group, with 2-20 carbon atoms and n is an integer that varies between 1-20;B) at least one organic base with a pKb (in water) less than or equal to 3;C) a solvent based on one or more heterocyclic compounds selected from cyclic ureas with a 5 or 6 atom ring of formula (IV) and/or (V); cyclic lactams with a 5 or 6 atom ring of formula (VI) and/or (VII); or combinations thereof:Where R1, R2, R3, R4 are independently selected from H, alkyl groups, linear or branched, with 1-10 carbon atoms;Where R1 and R3 are independently selected from H, alkyl, linear or branched groups with 1-10 carbon atoms.
Bibliography:Application Number: US202218567116