Aqueous alkanolamines using an electrodialysis cell with an ion

Details Aqueous alkanolamines using an electrodialysis cell with an ion Aqueous alkanolamines using an electrodialysis cell with an ion

1995-05-24

1999-06-08

Trinh, Ba K.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

C07C20984, C07C20986

Patent

active

059106115

ABSTRACT:
Method which includes passing a gas stream containing carbon dioxide, hydrogen sulfide, sulfur dioxide, mercaptans and other acid gases through an aqueous alkanolamine solution to remove the carbon dioxide, hydrogen sulfide, sulfur dioxide, mercaptans, etc., from the gaseous stream. Heat-stable alkanolamine salts form in the aqueous alkanolamine solution due to the acid contaminants (other than hydrogen sulfide or carbon dioxide) removed from the gas stream. A base is added to the aqueous alkanolamine solution to convert all or part of the heat-stable alkanolamine salts into alkanolamine and simple salts. The base-treated aqueous alkanolamine solution is electrodialyzed in an electrodialysis cell containing ion exchange membranes. The purified aqueous alkanolamine solution can be used again to remove carbon dioxide, etc., from the gas stream.

REFERENCES:
patent: 2797188 (1957-06-01), Taylor, Jr. et al.
patent: 3291713 (1966-12-01), Parsi
patent: 3554691 (1971-01-01), Kuo et al.
patent: 3620674 (1971-11-01), Renault et al.
patent: 3664930 (1972-05-01), Pottiez et al.
patent: 3904735 (1975-09-01), Atwood et al.
patent: 4051002 (1977-09-01), Gunjima et al.
patent: 4071602 (1978-01-01), Pearce
patent: 4107015 (1978-08-01), Chlanda et al.
patent: 4113849 (1978-09-01), Atwood
patent: 4122149 (1978-10-01), Dunnery et al.
patent: 4170628 (1979-10-01), Kosseim et al.
patent: 4184855 (1980-01-01), Butwell et al.
patent: 4389383 (1983-06-01), Sokolik, Jr. et al.
patent: 4471138 (1984-09-01), Stogryn
patent: 4704463 (1987-11-01), Blytas
Kohl & Riesenfeld, Gas Purification, published by McGraw-Hill Co., 1960, pp. 78-63.
R.J. Blake, Oil & Gas J., 61, (1963, No. 36) 134, col. 1, line 69 to col. 2, line 2.
Zabolotskii et al., Zh. Prikl, Khim. (leningrad), 55(5), 1105-10, (1982).
Chemical Abstracts, vol. 104, No. 2, Jan. 13, 1986, p. 342, Abstract No. 10918K; Zabolotskii et al., "Regeneration of Monoethanolamine-based Sorbents of Carbon Dioxi by Electrodialysis with Bipolar Membranes"; Zhurnal Prikladnoi Khimii, vol. 58, No. 10, pp. 2396-2399, Oct., 1985 (English Translation).

Affiliated with

Also associated with

Rating

Aqueous alkanolamines using an electrodialysis cell with an ion does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aqueous alkanolamines using an electrodialysis cell with an ion , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aqueous alkanolamines using an electrodialysis cell with an ion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1684154