Back to results
US 10,322,987 B2Granted
Production of isobutylene, isoamylene, or alkylates from mixed alkanes
AssigneeReaction 35, LLC
InventorsJeffrey H. Sherman, Peter K. Stoimenov
Life of this patent
Estimating the term…
Abstract
A method includes brominating a butanes feed stream including i-butane in a bromination reactor to form a bromination effluent stream including t-butyl bromide. The method includes dehydrobrominating the t-butyl bromide to form isobutylene. Another method includes brominating a mixed pentanes feed stream including i-pentane and n-pentane in a bromination reactor to form a bromination effluent stream including t-pentyl bromide. The method includes dehydrobrominating the t-pentyl bromide to form isoamylene and HBr.
Claims18
A method comprising:
- brominating a butanes feed stream comprising i-butane in a bromination reactor to form a bromination effluent stream comprising t-butyl bromide, polybromides, and unreacted n-butane and i-butane;
- separating the bromination effluent stream into a stream comprising unreacted n-butane and i-butane and a stream comprising the polybromides;
- hydrogenating the polybromides with hydrogen to form a hydrogenation recycle stream;
- recycling the hydrogenation recycle stream to the bromination effluent stream;
- isomerizing the stream comprising unreacted n-butane and i-butane, to convert n-butanes to i-butanes, then sending a portion of the isomerized effluent to the bromination reactor;
- and
- dehydrobromination the t-butyl bromide to form isobutylene and HBr in a dehydrobromination effluent.
4 more elements
Dependencies are inferred from the claim text.