CO2 CAPTURE BY ABSORPTION WITH POTASSIUM CARBONATE
The objective of this work is to improve the process for CO{sub 2} capture by alkanolamine absorption/stripping by developing an alternative solvent, aqueous K{sub 2}CO{sub 3} promoted by piperazine. CO{sub 2} mass transfer rates are second order in piperazine concentration and increase with ionic strength. Modeling of stripper performance suggests that 5 m K{sup +}/2.5 m PZ will require 25 to 46% less heat than 7 m MEA. The first pilot plant campaign was completed on June 24. The CO{sub 2} penetration through the absorber with 20 feet of Flexipac{trademark} 1Y varied from 0.6 to 16% as the inlet CO{sub 2} varied from 3 to 12% CO{sub 2} and the gas rate varied from 0.5 to 3 kg/m{sup 2}-s.
- Research Organization:
- University of Texas (US)
- Sponsoring Organization:
- (US)
- DOE Contract Number:
- FC26-02NT41440
- OSTI ID:
- 829575
- Resource Relation:
- Other Information: PBD: 29 Jul 2004
- Country of Publication:
- United States
- Language:
- English
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