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US 10,040,734 B2Granted
Production of isobutylene, isoamylene, or alkylates from mixed alkanes
AssigneeReaction 35, LLC
InventorsJeffrey H. Sherman, Peter K. Stoimenov
Life of this patent
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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.
Claims21
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 and unreacted i-butane;
- dehydrobrominating the t-butyl bromide to form isobutylene and HBr, wherein the butanes feed stream and bromination effluent stream each further comprise n-butane
- separating the butanes from the bromination effluent stream to form a brominated compound stream;
- isomerizing at least a portion of the n-butane to form an isomerization effluent comprising i-butane and n-butane;
- and
- feeding the i-butane and the n-butane of the isomerization effluent to the bromination reactor.
3 more elements
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 and unreacted i-butane;
- dehydrobrominating the t-butyl bromide to form isobutylene and HBr;
- separating the butanes from the bromination effluent stream to form a brominated compound stream and an isomerization feed stream, wherein the isomerization feed stream comprises the butanes and HBr;
- isomerizing at least a portion of the n-butane of the isomerization feed stream to form an isomerization effluent comprising i-butane and n-butane;
- and
- feeding the i-butane and the n-butane of the isomerization effluent to the bromination reactor.
3 more elements
A method comprising:
- brominating a mixed pentanes feed stream comprising i-pentane and n-pentane in a bromination reactor to form a bromination effluent stream comprising t-pentyl bromide;
- and
- dehydrobrominating the t-pentyl bromide to form isoamylene and HBr.
Dependencies are inferred from the claim text.