Reactor for synthesizing methyl tert-butyl ether and application thereof

Abstract

The invention relates to organic catalytic reaction, in particular to a reactor for synthesizing MTBE. The reactor is characterized in that an etherification reactor is of split structure with not less than 3 etherification reaction sections. The split structure refers to that each etherification reaction section is provided with respectively independent pot bodies filled with catalyst therein, both ends of each pot body are provided with a feed inlet and a feed outlet and other auxiliary pipeline interfaces; a raw material inlet pipeline is connected with the feed inlets of the pot bodies respectively through valves, and a product outlet pipeline is connected with the feed outlets of the pot bodies respectively through valves; the feed outlet of the pot body of each etherification reaction section is connected with the feed inlet of another pot body via a pipeline through valves, and different pot bodies are connected in series sequentially to compose a continuous annular serial system; the inlet of a heat exchanger is connected with the feed outlet of the pot body of each etherification reaction section by a pipeline through valves, and the outlet of the heat exchanger is connected with the feed inlet of the pot body of each etherification reaction section by a pipeline through valves. The invention can improve production efficiency and reduce production cost.

Description

technical field [0001] The invention relates to an organic catalytic reaction, in particular to a reactor for synthesizing MTBE, which is mainly used in the solid acid catalytic reaction of liquid materials. Background technique [0002] Many organic chemical reactions can only be completed under suitable conditions under the action of catalysts. How to play the role of catalyst more fully and effectively has always been an important topic of research in the chemical industry. [0003] Now take the etherification reaction of isobutylene and methanol to synthesize methyl tert-butyl ether (MTBE) as an example to illustrate this. [0004] In the existing MTBE production units, most of the etherification reaction systems equipped with the units are composed of three fixed-bed superpositions. In order to prevent catalyst poisoning and prolong the service life of the catalyst, two ion filter protectors (see accompanying drawing 1) are arranged in front of the etherification reac...

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Problems solved by technology

[0009] 3. The etherification reactor operating in a fixed bed mode is prone to uneven distribution of liquid materials along the cross section, resulting in a local high temperature of the catalytic bed; at the same time, the catalyst is compacted and agglomerated from time to time. Cause the reaction system to shut down due to excessive pressure drop

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