Heat exchange type reactor

Abstract

A heat exchange reactor comprising: reaction tubes for while allowing starting compound (A) to pass therethrough, effecting an exothermic reaction to thereby obtain product (B), and a reactor shell covering the surrounding area of the reaction tubes and having its interior divided into multiple regions along the direction of passage of the starting compound (A), each of which is filled with a heat medium, each of the regions adapted to carry out a heat exchange between the interior of reaction tube and the heat medium, characterized in that the heat exchange reactor is furnished with a heater capable of heating the heat medium charged in the upstreammost region among the regions resulting from the division independently from the heat medium charged in other regions.

Description

technical field [0001] The present invention relates to a heat exchange type reactor, a reaction method and a manufacturing method using the same. Background technique [0002] The reaction to obtain the product (B) from the raw material compound (A) by an exothermic reaction generally tends to release heat rapidly if the reaction is performed at a temperature higher than a predetermined reaction temperature, so it is required to perform the reaction while efficiently removing heat. As a reactor for performing such a reaction, as shown in FIG. 3 , a heat exchange type reactor equipped with a reaction tube (2) and a reactor shell (3) covering the periphery of the reaction tube (2) is widely used. (1'). In this reactor (1'), a product (B) is obtained by an exothermic reaction while passing the raw material compound (A) through the reaction tube (2). The reactor shell (3) is divided into a plurality of regions (31-34) along the passage direction of the raw material compound (...

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Problems solved by technology

[0003] However, in this conventional heat exchange reactor (1'), since the amount of reaction in each region (31 to 34) is small relative to the overall reaction amount, the supply amount of the raw material compound (A) is small. In the case of low catalytic activity, etc., the sum of sensible heat output and heat dissipation in each area (31 to 34) exceeds the reaction heat, and the predetermined reaction temperature cannot be maintained, especially in the most upstream area. Tends to be a significant problem in area (31)

Also, there is the problem of reduced reaction yield at times like this

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