Methods for methanol-to-gasoline conversion with methanol recycling

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United States of America Patent

PATENT NO 11118115
APP PUB NO 20200399543A1
SERIAL NO

16903220

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Abstract

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Methanol-to-gasoline (MTG) conversion may be performed with a methanol recycling. Methanol may be fed to a first reactor where it may be catalytically converted under dimethyl ether formation conditions in the presence of a first catalyst to form a product mixture comprising dimethyl ether (DME), methanol, and water. The DME may be separated from the methanol and the water and delivered to a second reactor. In the second reactor, the DME may be catalytically converted under MTG conversion conditions in the presence of a second catalyst to form a second product mixture comprising gasoline hydrocarbons and light hydrocarbon gas. The methanol and the water from the first reactor may be separated further to obtain substantially water-free methanol, which may be returned to the first reactor. The separation of methanol from the water may be performed using the light hydrocarbon gas to effect stripping of the methanol.

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Patent Owner(s)

Patent OwnerAddress
EXXONMOBIL RESEARCH AND ENGINEERING COMPANYANNANDALE NJ

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Harandi, Mohsen N New Hope, US 223 2698
Helton, Terry E Montgomery, US 67 677
Hindman, Mitch L Hamilton, US 6 25
Rajagopalan, Suriyanarayanan Spring, US 22 20
Staubs, David W Brevard, US 11 123

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