Methanol to olefin device and use method thereof

Abstract

The invention provides a methanol to olefin device and a use method thereof. The methanol to olefin device comprises a settling tank, wherein the settling tank comprises a turbid liquid side, a clear liquid side and a bottom surface, wherein the turbid liquid side is arranged inside the settling tank, the opening height of the turbid side is lower than that of the top of the settling tank, the clear liquid side is arranged inside the settling tank, a partition plate is arranged between the turbid liquid side and the clear liquid side, the bottom surface is positioned at the bottom of the settling tank, a drainage structure is arranged on the bottom surface, and a discharge hole is formed in the bottom end of the drainage structure; a chilled water inlet is formed in the settling tank and in a position that the suspended partition plate is far away from the clear liquid side; the height of the chilled water inlet is lower than that of the suspended partition plate; and chilled water to be fed into the settling tank comprises a catalyst. By adopting the technical scheme of the invention, the problems that in the prior art the solid content in the chilled water is too high and a settled catalyst needs to be manually cleaned can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of petrochemical equipment, in particular to a methanol-to-olefins device and a method for using the same. Background technique [0002] Low-carbon olefins, especially ethylene and propylene, are very important basic chemical raw materials. At present, olefins are mainly obtained through hydrocarbon cracking or catalytic cracking. The main raw material is petroleum. However, petroleum is a non-renewable resource with very limited reserves. In addition, the price of petroleum fluctuates greatly. Therefore, while increasing production and improving the original process technology, actively Develop core technologies for the production of low-carbon olefins from non-petroleum resources. Therefore, the process of preparing low-carbon olefins from coal or natural gas through methanol has attracted more and more attention. Coal is used as raw material to produce methanol, and then methanol is catalytically convert...

AI Technical Summary

Problems solved by technology

[0010] The main purpose of the present invention is to provide a methanol-to-olefins device and its use method to solve the problems in the prior art that the solid content of the quenching water is too high and the settled catalyst needs to be cleaned manually

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