Process and apparatus for removal of H.sub.2 S from a process ga

Details Process and apparatus for removal of H.sub.2 S from a process ga Process and apparatus for removal of H.sub.2 S from a process ga

1990-12-20

1992-12-01

Straub, Gary P.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423140, 423154, 423236, 423563, 423567A, C01B 1700

Patent

active

051679400

ABSTRACT:
A method and apparatus for treating a catalytic polyvalent metal redox absorption solution, after absorption of H.sub.2 S from a gas, in a first hydrothermal treatment, to separate the polyvalent metal, for example as a polyvalent metal sulfide precipitate, and thereafter treating the redox solution in a higher temperature hydrothermal treatment to decompose thiosulfate salts and, if present, thiocyanide and other cyanide salts and metal-cyanide complexes to decompose the salts and complexes to molecules that can be treated in the H.sub.2 S-absorption process for recovery of sulfur and alkali values.

REFERENCES:
patent: 3773662 (1973-11-01), Urban
patent: 3941875 (1976-03-01), Tsuruta
patent: 4009251 (1977-02-01), Meuly
patent: 4013430 (1977-03-01), Adachi
patent: 4091074 (1978-05-01), Gorai
patent: 4098886 (1978-07-01), Nicklin
patent: 4387084 (1983-06-01), Brandenburg et al.
patent: 4565678 (1986-01-01), Zielke
patent: 4622212 (1986-11-01), McManus
patent: 4654148 (1987-03-01), Baker
"Treating hydrogen sulfide: An alternative to Claus" by L. C. Hardison; Chemical Engineering, Jan. 21, 1985 by McGraw-Hill Inc.
"Unit Operations of Chemical Engineering" by McCabe and Smith; McGraw-Hill Inc. (1956) p. 580.
"Grant and Hackh's Chemical Dictionary" 5th ed. by Roges and Claire Grant, p. 37.

Affiliated with

Also associated with

Rating

Process and apparatus for removal of H.sub.2 S from a process ga 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 and apparatus for removal of H.sub.2 S from a process ga, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and apparatus for removal of H.sub.2 S from a process ga will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-502605