Carbon Sequestration
Capture Project Descriptions
Carbon Dioxide Capture by Absorption with Potassium Carbonate
Project # 41440
Primary Performing Organization:
University of Texas at Austin
The University of Texas at Austin will investigate an improved process for CO2 capture by alkanolamine absorption/stripping that uses an alternative solvent, aqueous potassium carbonate (K2CO3) promoted by piperazine (PZ). If successful, this process would use less energy for CO2 capture than the conventional monoethanolamine (MEA) scrubbing process. An improved capture system would mean a relative improvement in overall plant efficiency.
 The project will include the development of models to predict performance of absorption/stripping of CO2 using the improved solvent and performing a pilot plant study to validate the process models and define the range of feasible process operations. See photograph of the Pilot Plant. As part of the pilot plant study, a test with MEA will be conducted as a baseline to compare CO2 absorption and stripping performance with tests using the K2CO3/PZ solvent. Researchers will also investigate key issues such as solvent degradation, solvent reclamation, and corrosion as well as alternative stripper configurations.
Contact:
Project Manager: David A. Lang, david.lang@netl.doe.gov
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