Carbon capture solvents and methods for using such solvents
OwnerPrateek Bumb, Ramesh Kumar Ausula +1inventors
InventorsPrateek Bumb, Ramesh Kumar Ausula, Aniruddha Sharma
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Abstract
A solvent for recovery of carbon dioxide from gaseous mixture, having alkanolamine, reactive amines acting as promoter or activators, glycol, and a carbonate buffer. A solvent for recovery of carbon dioxide from gaseous mixture, having alkanolamine, reactive amines acting as promoter or activators, sulfolane, and a carbonate buffer. One specific solvent contains less than about 75% by weight of water and has a single liquid phase.
Claims10
A solvent for recovering carbon dioxide from a gaseous mixture, consisting of:
- (a) 30 to 40 wt % of an alkanolamine, wherein the alkanolamine is either N-methyldiethanolamine (MDEA) or 2-amino-2-methyl-1-propanol (AMP),
- (b) 10 to 18 wt % of a reactive amine, wherein reactive amine is N-aminoethylpiperazine (AEP),
- (c) a carbonate buffer, and
- (d) 15 to 20 wt % of a glycol,
- wherein the solvent contains less than about 45% by weight of water and is in a single liquid phase.
A solvent for recovering carbon dioxide from a gaseous mixture, consisting of:
- (a) 20 to 40 wt % of an alkanolamine,
- (b) 10 to 20 wt % of a reactive amine,
- (c) carbonate buffer, (d) 10 to 20 wt % of a glycol, and (e) less than 60 wt % water, wherein the solvent is in a single liquid phase, wherein the alkanolamine
- is N-methyldiethanolamine (MDEA) and the reactive amine is N-aminoethylpiperazine (AEP).
Dependencies are inferred from the claim text.