Method for Removing CO₂ from Coal-Fired Power Plant Flue Gas Using Ammonia as the Scrubbing Solution, with a Chemical Additive for Reducing NH₃ Losses, Coupled with a Membrane for Concentrating the CO₂ Stream to the Gas Stripper

Authors

Kunlei Liu, University of KentuckyFollow
James K. Neathery, University of Kentucky
Joseph E. Remias, University of Kentucky
Xiansen Li, University of Kentucky

US Patent Number

8328911

Publication Date

12-11-2012

Abstract

A method for removing and capturing carbon dioxide from a fluid stream includes the steps of exposing the fluid stream to an aqueous scrubbing solution that removes and holds carbon dioxide from the fluid stream, passing the aqueous scrubbing solution through a membrane in order to separate excess water from the scrubbing solution and increase the concentration of carbon dioxide in the scrubbing solution, heating the scrubbing solution having an increased concentration of carbon dioxide so as to release carbon dioxide gas and recycling the scrubbing solution. A carbon dioxide capture apparatus includes a carbon dioxide scrubber, a membrane downstream from the scrubber for separating water and concentrating carbon dioxide in a scrubbing solution and a stripper vessel.

Assignees

University of Kentucky Research Foundation, Lexington, KY (US)

Application Number

12/819626

Filing Date

06/21/2010

Recommended Citation

Liu, Kunlei; Neathery, James K.; Remias, Joseph E.; and Li, Xiansen, "Method for Removing CO₂ from Coal-Fired Power Plant Flue Gas Using Ammonia as the Scrubbing Solution, with a Chemical Additive for Reducing NH₃ Losses, Coupled with a Membrane for Concentrating the CO₂ Stream to the Gas Stripper" (2012). Center for Applied Energy Research Faculty Patents. 3.
https://uknowledge.uky.edu/caer_patents/3