Exxonmobil Research and Engineering Company

Exxonmobil Technology and Engineering Company

Mitch L Hindman

Mohsen N Harandi

Suriyanarayanan Rajagopalan

Samuel A Tabak

Terry Eugene Helton

Stephen John McCarthy

David L Johnson

Michael F Raterman

Lu Han

Eric B Shen

Bing Du

Clay R Sutton

David W Staubs

Zhongcheng Wang

Stephen J Mccarthy

Rohit Vijay

Brett Thomas Loveless

Samia Ilias

Brett Loveless

Samia Illias

Methanol-to-gasoline conversion may be performed using a heavy gasoline treatment, followed by a separation operation. Methanol may be converted into a first product mixture comprising dimethyl ether (DME) under DME formation conditions. In a methanol-to-gasoline (MTG) reactor, the first product mixture may be converted under MTG conversion conditions to produce a second product mixture comprising light gasoline hydrocarbons and untreated heavy gasoline hydrocarbons. The untreated heavy gasoline hydrocarbons may be separated from the light gasoline hydrocarbons and transferred to a heavy gasoline treatment (HGT) reactor. The untreated heavy gasoline hydrocarbons may be catalytically reacted in the HGT reactor to form a third product mixture. A heavy hydrocarbon fraction may be separated from the third product mixture. The heavy hydrocarbon fraction includes heavy gasoline hydrocarbons having a lower boiling endpoint than does the untreated heavy gasoline hydrocarbons.

Methods for methanol-to-gasoline conversion with post-processing of heavy gasoline hydrocarbons

Methanol-to-gasoline (MTG) conversion may be performed with forward methanol processing. 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 delivered to the second reactor. The separation of methanol from the water may be performed using the light hydrocarbon gas to effect stripping of the methanol.

Methods for methanol-to-gasoline conversion with forwarding methanol processing

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.

Methods for methanol-to-gasoline conversion with methanol recycling

A method for converting methanol to gasoline boiling range hydrocarbons is disclosed. In an aspect the method includes feeding crude methanol from a methanol synthesis reactor to a methanol separation vessel to recover a methanol stream in a vapor phase; and without condensing the methanol stream, feeding the methanol stream in the vapor phase to a reactor containing a conversion catalyst for converting methanol to at least one of dimethyl ether or gasoline boiling range hydrocarbons.

Integrated methanol separation and methanol-to-gasoline conversion process

Apparatuses and processes for converting an oxygenate feedstock, such as methanol and/or dimethyl ether, in a fluidized bed containing a catalyst to hydrocarbons, such as gasoline boiling components, olefins and aromatics are provided herein.

Apparatus and process for producing gasoline, olefins and aromatics from oxygenates

Apparatuses and processes for converting an oxygenate feedstock, such as methanol and dimethyl ether, in a fluidized bed containing a catalyst to hydrocarbons, such as gasoline boiling components, olefins and aromatics are provided herein.

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Spring, TX, United States of America

Mitch L Hindman