Continuous reaction and regeneration technology used for conversion of methanol to gasoline through stationary bed adiabatic reactors

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 technology of converting methanol to gasoline. Specifically, it relates to a continuous reaction and regeneration process for converting methanol into gasoline in a fixed-bed adiabatic reactor. Background technique [0002] Mobil Corporation of the United States first discovered in the 1970s that methanol can be converted into hydrocarbon products under the catalysis of ZSM-5 molecular sieves. In September 1974, Mobil applied for the first patent of its MTG technology (USP3931349, Conversion of methanol to gasoline components). The new process of oil products provides a new way to synthesize high-octane gasoline from coal or natural gas. [0003] To date, a large body of literature has been written on processes and catalysts for methanol conversion to produce hydrocarbon products including gasoline components. From the perspective of reactor, the technology of methanol conversion to gasoline and other hydrocarbon product...

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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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