Open AccessCO2 CAPTURE BY ABSORPTION WITH POTASSIUM CARBONATE
Author(s) -
Gary T. Rochelle,
A Frank Seibert
Publication year - 2002
Language(s) - English
Resource type - Reports
DOI - 10.2172/815771
Subject(s) - potassium carbonate , aqueous solution , alkanolamine , absorption (acoustics) , carbonate , solvent , chemistry , process engineering , piperazine , potassium , process (computing) , inorganic chemistry , analytical chemistry (journal) , materials science , chromatography , computer science , organic chemistry , engineering , composite material , operating system
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. Progress has been made in this reporting period on three subtasks. A simple thermodynamic model has been developed to represent the CO{sub 2} vapor pressure and speciation of the new solvent. A rate model has been formulated to predict the CO{sub 2} flux with these solutions under absorber conditions. A process and instrumentation diagram and process flow diagram have been prepared for modifications of the existing pilot plant system