摘要 |
There are disclosed a method for removing CO2 from a combustion exhaust gas which comprises the step of bringing the combustion exhaust gas under atmospheric pressure into contact with an aqueous solution of a hindered amine selected from the group consisting of 2-amino-2-methyl-1-propanol, 2-methylaminoethanol, 2-ethylaminoethanol and 2-piperidineethanol; and another method for removing carbon dioxide from a combustion exhaust gas which comprises the step of bringing the combustion exhaust gas under atmospheric pressure into contact with a mixed aqueous solution of 100 parts by weight of an amine compound (X) selected from the group consisting of 2-amino-2-methyl-1, 3-propanediol, 2-amino-2-methyl-1-propanol, 2-amino-2-ethyl-1, 3-propanediol, t-butyldiethanolamine and 2-amino-2-hydroxymethyl-1,3-propanediol; and 1-25 parts by weight of an amine compound (Y) selected from the group consisting of piperazine, piperidine, morpholine, glycine, 2-methylaminoethanol, 2-piperidineethanol and 2-ethylaminoethanol. <IMAGE> |
申请人 |
THE KANSAI ELECTRIC POWER CO., INC., OSAKA, JP;MITSUBISHI JUKOGYO K.K., TOKIO/TOKYO, JP |
发明人 |
YOSHIDA, KUNIHIKO, C/O THE KANSAI EL. POWER CO.INC, OSAKA-SHI, OSAKA, JP;MIMURA, TOMIO, C/O THE KANSAI EL. POWER CO.INC, OSAKA-SHI, OSAKA, JP;SHIMOJO, SHIGERU, C/O THE KANSAI EL. POWER CO. INC, OSAKA-SHI, OSAKA, JP;KARASAKI, MUTSUNORI, C/O MITSUBISHI JUKOGYO K.K., TOKYO, JP;IIJIMA, MASAKI, C/O MITSUBISHI JUKOGYO K.K., TOKYO, JP;SETO, TOURU, C/O MITSUBISHI JUKOGYO K.K., HIROSHIMA-SHI, HIROSHIMA-KEN, JP;MITSUOKA, SHIGEAKI, C/O MITSUBISHI JUKOGYO K.K., HIROSHIMA-SHI, HIROSHIMA-KEN, JP |