Integrated methanol separation and methanol-to-gasoline conversion process

Abstract

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 separationvessel 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.

Description

technical field [0001] The present disclosure relates to systems and methods for producing gasoline boiling range hydrocarbons from methanol. Background technique [0002] Processes for the conversion of lower oxygenates such as methanol and dimethyl ether (DME) to hydrocarbons are known and have attracted great attention because they provide a means of producing liquid hydrocarbon fuels, especially gasoline, from non-petrochemical feedstock sources. attractive approach. In particular, they provide methods for converting methanol and DME to gasoline boiling components, olefins and aromatics. Olefins and aromatics are valuable chemical products and can be used as raw materials for the production of many important chemicals and polymers. Opportunities to produce low-cost olefins from petroleum feedstocks are limited due to limited availability of competing petroleum feedstocks. However, methanol can be readily obtained from coal by gasifying coal to synthesis gas and conver...

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Problems solved by technology

Fixed bed processes use recirculated gas for temperature control and very large heat transfer to manage low quality heat which results in high compression costs and large heat exchange networks

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