Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Carbon dioxide or hydrogen sulfide component
Patent
1995-08-04
1997-04-08
Jones, Deborah
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Carbon dioxide or hydrogen sulfide component
423226, 423229, C01B 1716
Patent
active
056185065
ABSTRACT:
This invention relates to the process for removing CO.sub.2 from CO.sub.2 -containing gas such as combustion gas. For example, it is the process for removing CO.sub.2 from combustion gas through the contact of the gas at the atmospheric pressure with an aqueous solution of an amine represented by the general formula R.sup.1 NHC(CH.sub.3).sub.2 CH.sub.2 OH in which R.sup.1 is a lower alkyl group having 1-4 carbon atoms, or an aqueous solution containing both an amine represented by the general formula R.sub.2 CHR.sub.3 NHCH.sub.2 CH.sub.2 OH in which R.sup.2 is a hydrogen atom or a lower alkyl group having 1-4 carbon atoms and R.sup.3 is a hydrogen atom or methyl group and a piperazine compound selected from the group consisting of piperazine, 2-methylpiperazine, 2,3-dimethylpiperazine, and 2,5-dimethylpiperazine, or an mixed aqueous amine solution containing a secondary amine and a tertiary amine at concentrations of 10-45% by weight each, or an aqueous solution of a piperazine derivative.
REFERENCES:
patent: 3622267 (1971-11-01), Bartholome et al.
patent: 3856921 (1974-12-01), Shrier et al.
patent: 4094957 (1978-06-01), Sartori et al.
patent: 4112052 (1978-09-01), Sartori et al.
patent: 4217238 (1980-08-01), Sartori et al.
patent: 4336233 (1982-06-01), Appl et al.
patent: 4405578 (1983-09-01), Sartori et al.
patent: 4551158 (1985-11-01), Wagner et al.
patent: 4581209 (1986-04-01), Oswald et al.
patent: 5246619 (1993-09-01), Niswander
Chemical Engineering Science, vol. 41, No. 2, 1986, pp. 405-408, "Absorption rates of carbon dioxide and hydrogen sulphide in . . . "
Chemical Engineering Science, vol. 41, No. 4, 1986, pp. 997-1003 "CO.sub.2 Absorption in Aqueous Solutions of Hindered Amines".
Hayakawa Atsushi
Iijima Masaki
Iwaki Toru
Mimura Tomio
Mitsuoka Shigeaki
Harding Amy M.
Jones Deborah
Mitsubishi Jukogyo Kabushiki Kaisha
The Kansai Electric Power Co. Inc.
LandOfFree
Process for removing carbon dioxide from gases does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for removing carbon dioxide from gases, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for removing carbon dioxide from gases will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2396300