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US 11,230,510 B2Granted
Process for maximizing 1-butene production from n-butane dehydrogenation
AssigneeSabic Global Technologies B.V.
InventorsShehzada Khurram, Muhammad H. Haider, Hamad M. Mudij
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Abstract
System and method for producing 1-butene are disclosed. The method includes dehydrogenating butane to form a mixture comprising butene isomers. 1-butene is separated from the mixture using a system that includes an extractive distillation unit and a membrane. The system also includes a isomerizing unit for isomerizing cis-2-butene and trans-2-butene to form additional 1-butene.
Claims20
A method of producing 1-butene, the method comprising:
- dehydrogenating n-butane to produce a first stream comprising 1-butene, isobutene, trans-2-butene, cis-2-butene, and n-butane;
- separating the first stream by extractive distillation to produce a second stream comprising primarily n-butane and a third stream comprising primarily 1-butene, iso-butene, trans-2-butene, cis-2-butene, collectively;
- distilling, in a distillation column, the third stream to form a fourth stream comprising primarily iso-butene and 1-butene, collectively and a fifth stream comprising primarily trans-2-butene and cis-2-butene, collectively;
- and
- separating the fourth stream to produce a sixth stream comprising primarily iso-butene and seventh stream comprising primarily 1-butene.
2 more elements
Dependencies are inferred from the claim text.