Reactor for chlorine production and process for producing chlorine

Abstract

The reactor for chlorine production of the present invention is a multi-tubular heat exchange type reactor used when chlorine is produced by oxidizing hydrogen chloride, and is characterized in that the shell of the reactor is divided into a plurality of regions in the direction of the tube axis by partitions. In each zone, a heat transfer medium is circulated, and at least one temperature control device for the heat transfer medium is provided. The temperature control device is composed of a cooler and / or a heater. In the direction from the inlet to the outlet of the reactor reaction tube, the layer Filled with catalysts with different catalytic activities, the catalyst is a ruthenium oxide catalyst, filling less than 40% of the total amount of ruthenium in the area from the entrance of the reaction tube to less than 50%, and filling 60% of the total amount of ruthenium in the area of ​​50% to 100%. %above. In addition, the method for producing chlorine according to the present invention is characterized in that the chlorine production reactor is used, hydrogen chloride-containing gas and oxygen-containing gas are supplied to the chlorine production reactor, and at a pressure of 0.1 to 1 MPaG and a temperature of 200 to 500°C, Hydrogen chloride is oxidized with oxygen.

Description

technical field [0001] The present invention relates to a reactor for chlorine production and a method for producing chlorine using the reactor for chlorine production. Specifically, it relates to a chlorine production reactor capable of effectively utilizing a catalyst and stably maintaining catalytic activity, and a method for stably producing chlorine with high yield from hydrogen chloride using the reactor. Background technique [0002] Chlorine is useful as a raw material for the production of vinyl chloride, isocyanate compounds, polycarbonates, chlorinated hydrocarbons, and the like, and a large amount of hydrogen chloride is by-produced at the time of production. By-produced hydrogen chloride in the presence of catalyzer is oxidized and prepares the method for chlorine is well known from a very early time, and well-known methods have the method that adopts Deacon catalyst, the method that adopts chromium oxide catalyst, the method that adopts ruthenium oxide catalyst...

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Problems solved by technology

[0003] The method using Deacon catalyst or chromium oxide catalyst is performed at a relatively high temperature, so the life of the catalyst is not sufficient. In addition, the chromium oxide catalyst also has the problem of dealing with harmful chromium.

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