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CO2 Capture by Absorption with Potassium Carbonate
Gary T. Rochelle
Eric Chen
Marcus Hilliard
Babatunde Oyenekan
Andrew Sexton
Jason Davis
Amornvadee Veawab
出版
United States. Department of Energy
, 2006
URL
http://books.google.com.hk/books?id=XP8RDAEACAAJ&hl=&source=gbs_api
註釋
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. Ethylenediamine was detected in a degraded solution of MEA/PZ solution, suggesting that piperazine is subject to oxidation. Stripper modeling has demonstrated that vacuum strippers will be more energy efficient if constructed short and fat rather than tall and skinny. The matrix stripper has been identified as a configuration that will significantly reduce energy use. Extensive measurements of CO{sub 2} solubility in 7 m MEA at 40 and 60 C have confirmed the work by Jou and Mather. Corrosion of carbon steel without inhibitors increases from 19 to 181 mpy in lean solutions of 6.2 m MEA/PZ as piperazine increases from 0 to 3.1 m.