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US 12,427,471 B2Granted
Regenerable solvent mixtures for acid-gas separation
AssigneeResearch Triangle Institute
InventorsMarty Lail, Luke Coleman
Life of this patent
Estimating the term…
Abstract
A solvent system for the removal of acid gases from mixed gas streams is provided. Also provided is a process for removing acid gases from mixed gas streams using the disclosed solvent systems. The solvent systems may be utilized within a gas processing system.
Claims13
A solvent system for the removal of SO2 from gas stream, consisting of:
- a nucleophilic amine,
- wherein the nucleophilic amine has a structure such that it reacts with
- SO2 to form a Zwitterionic sulfamic acid;
- one or more Zwitterionic sulfamic acid reaction;
- optionally, water in an amount of less than about 10 weight percent;
- and
- optionally, one or more unreacted components of the gas stream.
4 more elements
A solvent system for the removal of CO2 and/or SO2 from a gas stream, consisting of:
- 3-fluoro-N-methylbenzylamine;
- one or more reaction products of the 3-fluoro-N-methylbenzylamine and the CO2 and/or SO2;
- optionally, water in an amount of less than about 10 weight percent;
- and
- optionally, one or more unreacted components of the gas stream.
2 more elements
Dependencies are inferred from the claim text.