Removal characteristics of CO2 using aqueous MEA/AMP solutions in the absorption and regeneration process.
The carbon dioxide (CO2) removal efficiency, reaction rate, and CO2 loading into aqueous blended monoethanolamine (MEA) + 2-amino-2-methyl-1-propanol (AMP) solutions to enhance absorption characteristics of MEA and AMP were carried out by the absorption/regeneration process. As a result, compared to aqueous MEA and AMP solutions, aqueous blended MEA + AMP solutions have a higher CO2 loading than MEA and a higher reaction rate than AMP. The CO2 loading of rich amine of aqueous 18 wt.% MEA + 12 wt.% AMP solution was 0.62 mol CO2/mol amine, which is 51.2% more than 30 wt.% MEA (0.41 mol CO2/mol amine). Consequently, blending MEA and AMP could be an effective way to design considering economical efficiency and used to operate absorber for a long time.
Choi
Won-Joon
WJ
Greenhouse Gas Research Center Korea Institute of Energy Research, Daejeon 305343, Korea. cwj96@pusan.ac.kr
Seo
Jong-Beom
JB
Jang
Sang-Yong
SY
Jung
Jong-Hyeon
JH
Oh
Kwang-Joong
KJ
D000042:Absorption; D000393:Air Pollutants / Q000737:chemistry / Q000302:isolation & purification; D002245:Carbon Dioxide / Q000737:chemistry* / Q000302:isolation & purification*; D019856:Ethanolamine / Q000737:chemistry*; D011412:Propanolamines / Q000737:chemistry*; D012996:Solutions / Q000737:chemistry*
D000393:Air Pollutants; D011412:Propanolamines; D012996:Solutions; D002245:Carbon Dioxide; D019856:Ethanolamine; C006551:2-amino-2-methyl-1-propanol