Catalytic reaction, rectification integrated technique and special-purpose equipment

Abstract

A catalytic reaction / rectification integrated process is provided, which includes: reaction raw materials are pre-heated and then mixed with catalysts; the resulting mixture is fed into a jet mixing reaction section 6 of a catalytic reaction / rectification integrated tower through a feed port, wherein the jet mixing reaction section 6 is a kettle-like reactor in the middle of the catalytic reaction / rectification integrated tower T-01; after the reaction raw materials are pressurized by a centrifugal pump, a subsonic or transonic jet mixer 33 inside the jet mixing reaction section 6 jets the reaction raw materials at a high speed into the jet mixing reaction section 6 and performs high-efficiency mixing of solid and liquid phases inside the jet mixing reaction section 6, thereby enhancing the heat and the mass transfer efficiencies during the process; the reaction mixture is directly separated and purified inside the catalytic reaction / rectification integrated tower. Therefore, the catalytic reaction / rectification integrated process has high conversion rate and production capacity and low energy consumption and production cost. The process is used for esterification, alcohol synthesis from alkenes and water, and the ether synthesis from alkenes and alcohols. A special catalytic reaction / rectification integrated tower is also provided.

Description

field of invention [0001] The invention relates to a novel catalytic reaction rectification integrated process, in particular, it relates to two processes of catalytic reaction and rectification separation. Background technique [0002] Ethyl formate, ethyl acetate, butyl acetate, methyl lactate, methyl tert-butyl ether and other esters and ethers are important chemical raw materials in the chemical industry. Esters such as ethyl acetate and butyl acetate can It can be used as raw materials for coatings, spices, organic synthesis intermediates and as a solvent for various organic compounds; it can also be used as an extractant in various petroleum processing and pharmaceutical processes, and can also be used as a component of flavoring agents, etc. Methyl lactate is also an important organic chemical raw material and an important fine chemical, widely used in food, beverage, pharmaceutical and other industries. Methyl lactate is non-toxic, has good solubility, is not volati...

AI Technical Summary

Problems solved by technology

The disadvantages of these production methods are many: if batch operation is adopted, the production efficiency is low, the sulfuric acid catalyst corrodes the equipment seriously, the catalyst needs to be neutralized with alkali from the product, the catalyst cannot be reused, etc.; if the solid acid catalyst fixed bed reaction process is adopted , then not only the reaction time is long, the conversion rate is low (usually about 50%), and the raw material butanol needs to be excessive, which causes the difficulty of butanol separation after the reaction and increases the operating cost

For these reasons, the one-time investment and maintenance costs of the device are high

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