CO2 Capture by Absorption With Potassium Carbonate Quarterly Report (open access)

CO2 Capture by Absorption With Potassium Carbonate Quarterly Report

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. Stripper modeling suggests the energy requirement with a simple stripper will be about the same for 5 m K{sup +}/2.5 m PZ and 7 m MEA. Modeling with a generic solvent shows that the optimum heat of CO{sub 2} desorption to minimize heat duty lies between 15 and 25 kcal/gmol. On-line pH and density measurements are effective indicators of loading and total alkalinity for the K+/PZ solvent. The baseline pilot plant campaign with 30% MEA has been started.
Date: April 29, 2005
Creator: Rochelle, Gary T.; Chen, Eric; Lu, Jennifer; Oyenekan, Babatunde & Dugas, Ross
System: The UNT Digital Library