Open AccessCO2 CAPTURE BY ABSORPTION WITH POTASSIUM CARBONATE
Author(s) -
Gary T. Rochelle,
A Frank Seibert,
Jenna Cullinane,
Terraun Jones
Publication year - 2003
Language(s) - English
Resource type - Reports
DOI - 10.2172/816710
Subject(s) - potassium carbonate , bicarbonate , alkanolamine , piperazine , solubility , carbonate , electrolyte , potassium , chemistry , solvent , absorption (acoustics) , aqueous solution , inorganic chemistry , non random two liquid model , materials science , organic chemistry , activity coefficient , electrode , composite material
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. The rigorous Electrolyte Non-Random Two-Liquid (electrolyte-NRTL) model has been regressed to represent CO{sub 2} solubility in potassium carbonate/bicarbonate solutions. An analytical method for piperazine has been developed using a gas chromatograph. Funding has been obtained and equipment has been donated to provide for modifications of the existing pilot plant system with stainless steel materials