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US 12,516,008 B2Granted
Systems and methods for MTBE production
AssigneeSabic Global Technologies B.V.
InventorsGuillermo Leal, Mohammed B. Ansari, Vijay Dinkar Bodas, Umesh Hasyagar, Vinod Nair
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Abstract
Systems and methods for producing MTBE are disclosed. A C4 feed stream containing isobutylene and other C4 hydrocarbons is fed into a reactor unit for producing MTBE. The effluent of the reactor unit comprising MTBE is further processed to produce a MTBE product stream that comprises at least 90 wt. % MTBE. At least a portion of the MTBE product stream is then recycled back to the reactor unit.
Claims19
A method of producing methyl tertiary butyl ether (MTBE), the method comprising:
- reacting isobutylene and methanol in a reactor unit to form a reactor unit effluent comprising MTBE;
- processing the reactor unit effluent to form an MTBE product stream comprising at least 90 wt. % MTBE;
- and
- recycling at least a portion of the MTBE product stream comprising at least 90 wt. % MTBE to the reactor unit,
- wherein the processing comprises:
- removing water from the reactor unit effluent to form dried reactor unit effluent;
- distilling at least a portion of the dried reactor unit effluent in a first distillation column to produce a first bottom stream comprising MTBE and a first top stream comprising primarily methanol 1-butene, 2-butene, n-butane, and isobutane, collectively;
- and
- distilling at least some of the first bottom stream in a second distillation column to produce the MTBE product stream comprising at least 90 wt. % MTBE.
6 more elements
Dependencies are inferred from the claim text.