Process for the desulfurization of waste gases

Patent · Tue Nov 11 00:00:00 EST 1980

OSTI ID:6505739

D'souza, G J; Radford, H D

A process for the removal of oxidizable sulfur compounds from a waste gas; is described which comprises: (A) mixing a waste gas containing compounds oxidizable to sulfur oxides with molecular oxygen and oxidizing said compounds to sulfur oxides; (B) contacting the oxidized gas with a metal oxide absorbent capable of absorbing sulfur oxides at a temperature of between about 100* C. And 800* C., and absorbing sulfur oxides with said metal oxide absorbent; (C) simultaneously, in the presence of a hydrocarbon cracking catalyst and at a temperature of between about 375* C. And about 1,200* C., cracking a hydrocarbon, regenerating the spent metal oxide absorbent and contacting the absorbent with steam to form hydrogen sulfide which can be separated from the cracked hydrocarbon and recovered as elemental sulfur.

• Assignee: Standard Oil Co (Indiana)
• Patent Number(s): US 4233276
• OSTI ID: 6505739
• Resource Relation: Patent File Date: Filed date 30 Mar 1979
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
CLAUS PROCESS
GASEOUS WASTES
DESULFURIZATION
SULFUR
REMOVAL
ADSORBENTS
CATALYTIC CRACKING
HYDROGEN SULFIDES
SULFUR OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
ELEMENTS
HYDROGEN COMPOUNDS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PYROLYSIS
SULFIDES
SULFUR COMPOUNDS
THERMOCHEMICAL PROCESSES
WASTES
424000* - Engineering- Pollution Control Equipment- (1980-1989)