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US 11,718,805 B2Granted
CO2-philic crosslinked polyethylene glycol-based membranes for acid and sour gas separations
AssigneeSaudi Arabian Oil Company
InventorsBenjamin James Sundell, John Alden Lawrence, III, Seth A. Sharber, Sibo Lin, Daniel J. Harrigan
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Abstract
This disclosure relates to CO2-philic crosslinked polyethylene glycol membranes useful for natural gas purification processes. Also provided are methods of using the membranes to remove CO2 and H2S from natural gas.
Claims16
A CO2-philic polyethylene glycol (PEG) compound of Formula (Ia):
- wherein:
- each n is independently an integer between 1 and 100.
A CO2-philic polyethylene glycol (PEG) compound of Formula (Ib):
- wherein each m is independently an integer between 1 and 25.
A CO2-philic membrane, comprising a crosslinked CO2-philic polyethylene glycol (PEG) compound of Formula (I):
- wherein:
- R is selected from:
- each n is independently an integer between 1 and 100;
- and
- each m is independently an integer between 1 and 100.
2 more elements
Dependencies are inferred from the claim text.