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US 5,824,277 AGranted
Plasma oxidation of an exhaust gas stream from chlorinating titanium-containing material
AssigneeE. I.du Pont de Nemours and Company
InventorsDaniel Campos, Stephen Erwin Lyke
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Abstract
A process is disclosed for treating an exhaust gas stream containing COS and CO arising from chlorinating titanium-containing material with a cold plasma wherein oxygen is present and selectively oxidizing COS.
Claims8
A process for treating an exhaust gas stream comprising COS, wherein the exhaust gas stream is produced from the chlorination of titanium-containing material, comprising the steps of:
- (a) passing the exhaust gas stream into a cold plasma generating zone generating a cold plasma at a temperature within the range of about -20.degree. C. to about 500.degree. C. in the presence of oxygen, and
- (b) oxidizing COS to SO.sub.x, wherein x is 2 or 3.
Dependencies are inferred from the claim text.