Apparatus and method for monotubular multi-spiral static mixed tube style chlorohydrination of propene for production of epoxypropane

Abstract

A monotubular multiple rotary static mixing tubing propenyl chlorine alcoholizing reacting producer of propylene epoxide production and its production are disclosed. The producer consists of an inlet pipeline of material water and chlorine, a tubing chlorine instant hypochloric acid reactor, an outlet pipeline of hypochloric acid, a confluent pipeline of hypochloric acid and propylene, a tubing chlorohydrination reactor, an outlet pipeline of chloralcohol, an outlet pipeline of propylene mixed liquid, an instant mixing tube of propylene, and an inlet pipeline of propylene and circulating chloralcohol. Its advantages include low cost, more operating elasticity, no gas-phase contact, higher concentration and less by-product.

Description

technical field [0001] The invention relates to a production device and a production method of a chemical product, in particular to a production device and a production method for producing chlorohydrin from propylene oxide in the process of preparing propylene oxide. Background technique [0002] Propylene oxide is an important basic organic chemical raw material and an important industrial derivative of propylene. At present, the production of propylene oxide in my country adopts the chlorohydrin method. [0003] The production of propylene oxide by the chlorohydrin method includes the chlorohydrination of propylene to generate chloropropanol, the saponification of chlorohydrin to generate crude propylene oxide, and the refining of crude propylene oxide to obtain qualified propylene oxide. Among them, the chlorohydrination reaction of propylene to generate chloropropanol is a key production step. The equipment used in the chlorohydrination reaction process can be divided...

AI Technical Summary

Problems solved by technology

However, the current tubular reactor is an empty tube reactor. In order to achieve efficient radial mixing, it is necessary to increase the flow rate of the material in the reactor, and the energy consumption is high; when operating at a low flow rate, it is still impossible to achieve plug flow. The residence time in the reactor is still not uniform

In addition, the existing tubular chloroalcoholization reactor uses raw material water to extract chlorine gas through the injector, so that the water and chlorine gas are mixed to form hypochlorous acid, and then react with propylene. During production, it is impossible to ensure that chlorine gas and propylene do not have gas phase contact.

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