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. The baseline campaign with 30% MEA has given heat duties from 40 to 70 kcal/gmol CO{sub 2} as predicted by the stripper model. The Flexipak 1Y structured packing gives significantly better performance than IMTP 40 duped packing in the absorber, but in the stripper the performance of the two packings is indistinguishable. The FTIR analyzer measured MEA volatility in the absorber represented by an activity coefficient of 0.7. In the MEA campaign the material balance closed with an average error of 3.5% and the energy balance had an average error of 5.9.
- Research Organization:
- Univ. of Texas, Austin, TX (United States)
- DOE Contract Number:
- FC26-02NT41440
- OSTI ID:
- 842830
- Country of Publication:
- United States
- Language:
- English
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CO2 CAPTURE BY ABSORPTION WITH POTASSIUM CARBONATE
CO2 Capture by Absorption with Potassium Carbonate