A continuous reaction and regeneration process of methanol conversion to gasoline in a fixed-bed adiabatic reactor

Abstract

Provided is a continuous reaction and regeneration technology used for conversion of methanol to gasoline through stationary bed adiabatic reactors. The two stationary bed adiabatic reactors work independently, the first reactor carries out a reaction for conversion of methanol to gasoline independently, and the second reactor is in a standby state; when catalysts in the first reactor approach to inactivation, the two reactors can work in a series connection mode through valve switchover until residual activity of the catalysts in the first reactor is fully utilized; the two reactors are made to work in a respective independent mode through valve switchover, the second reactor completes the reaction for conversion of methanol to gasoline independently, and the first reactor finishes catalyst regeneration operation independently and gets into the standby state. The technology is repeated in that way. The technology has the advantages that operation is simple, and the utilization rate of reactivity of the catalysts in the reaction process is high.

Description

technical field [0001] The invention belongs to the technique of converting methanol into gasoline. Specifically, it relates to a continuous reaction and regeneration process for methanol conversion to gasoline in a fixed-bed adiabatic reactor. Background technique [0002] Mobil Corporation of the United States first discovered in the 1970s that under the catalysis of ZSM-5 molecular sieves, methanol can be converted into hydrocarbon products. In September 1974, Mobil applied for the first patent of its MTG technology (USP3931349, Conversion of methanol to gasoline components). The discovery of this process is another new synthesis following the industrialization of FT technology for more than fifty years. The new process of oil products provides a new way to synthesize high-octane gasoline from coal or natural gas. [0003] To date, processes and catalysts for the conversion of methanol to hydrocarbon products, including gasoline components, have been extensively documen...

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Problems solved by technology

[0021] The purpose of the present invention is to provide a continuous reaction and regeneration process of methanol conversion to gasoline in a fixed bed adiabatic reactor with simple operation and high catalyst reactivity utilization rate in the reaction process, so as to solve the existing technology of methanol conversion in a fixed bed adiabatic reactor to gasoline The problem that the existing catalyst "residual activity" is difficult to use, to achieve the purpose of improving catalyst activity and simplifying the operation method

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