Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Sulfur or sulfur containing component
Patent
1981-07-31
1983-12-27
Heller, Gregory A.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Sulfur or sulfur containing component
423563, 208113, 208120, 502 55, B01J 800, C01B 1700, C10G 1102
Patent
active
044230192
ABSTRACT:
Sulfur oxides are removed from a gas by an absorbent which comprises a physical mixture of (1) a particulate cracking catalyst comprising from about 0.5 to about 50 weight percent of a crystalline aluminosilicate zeolite which is distributed throughout a porous matrix wherein said matrix comprises from about 70 to about 100 weight percent of alumina and (2) a particulate solid other than cracking catalyst which comprises at least one inorganic oxide selected from the group consisting of the oxides of aluminum and magnesium in association with at least one free or combined rare earth metal selected from the group consisting of lanthanum, cerium, praseodymium, samarium and dysprosium, wherein the ratio by weight of inorganic oxide or oxides to rare earth metal or metals is from about 1.0 to about 1,000. Absorbed sulfur oxides are recovered as a sulfur-containing gas comprising hydrogen sulfide by contacting the spent absorbent with a hydrocarbon at a temperature from about 375.degree. to about 900.degree. C. The absorbent can be circulated through a catalytic cracking process to reduce sulfur oxide emissions from the regeneration zone.
REFERENCES:
patent: 4166787 (1979-09-01), Blanton et al.
patent: 4206039 (1980-06-01), Vasalos
patent: 4252635 (1981-02-01), Blanton
Russell et al., Alumina Properties. pp. 6-8, 39-40.
Bertolacini Ralph J.
Hirschberg Eugene H.
Modica Frank S.
Heller Gregory A.
Kretchmer Richard A.
Magidson William H.
McClain William T.
Standard Oil Company (Indiana)
LandOfFree
Process for removing sulfur oxides from a gas 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 sulfur oxides from a gas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for removing sulfur oxides from a gas will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-946776