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US 7,683,230 B2Granted
Methyl bromide to olefins
OwnerJohn E. Staufferinventor
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Abstract
The specification discloses a process for the production of olefins including ethylene, propylene and butenes from methyl bromide. In a chemical reaction methyl bromide is dehydrobrominated to the olefin and hydrogen bromide. The reaction is carried out at elevated temperatures, preferably in the range of 300° C. to 500° C. A catalyst comprising a zeolite may be used.
Claims4
A process for the manufacture of an olefin from methanol comprising:
- (a) reacting hydrogen bromide with methanol a catalytic reaction to form methyl bromide and water,
- (b) condensing the methyl bromide by pyrolysis at a temperature in the range of 300° C. to 500° C. to form a product consisting essentially of the olefin and hydrogen bromide;
- and
- (c) recycling the hydrogen bromide produced in step (b) to step (a).
1 more element
Dependencies are inferred from the claim text.