Improved vaporization system for chlorinated paraffin production

Abstract

The invention discloses an improved vaporization system for chlorinated paraffin production. The improved vaporization system comprises a liquid chlorine vaporization subsystem, a heating-aided vaporization subsystem and an accident disposal subsystem, wherein the liquid chlorine vaporization subsystem is used for carrying out vaporization treatment on a liquid chlorine raw material; the heating-aided vaporization subsystem is used for assisting the liquid chlorine vaporization subsystem in acceleration of the vaporization of liquid chlorine; and the accident disposal subsystem is used for collecting and treating acidic poison gas generated by leakage or volatilization of the liquid chlorine vaporization subsystem. According to the improved vaporization system, the vaporizing volume of the liquid chlorine in unit time is increased, the vaporizing efficiency of the liquid chlorine is improved, the vaporizing speed of the liquid chlorine is high and uniform, the discharge amount of chlorine in tail gas produced by chlorinated paraffin is reduced, tail gas treatment burden is reduced, and production safety is improved.

Description

technical field [0001] The present invention relates to an improved vaporization system for the production of chlorinated paraffins. Background technique [0002] Chlorinated paraffin is a product made from wax oil and chlorine gas by continuous photothermal catalytic chlorination. This reaction is actually an exothermic chlorination reaction. How to make chlorine gas evenly distributed in this chlorination reaction The reaction with wax oil is the key to control the reaction process. If the distribution of chlorine gas is not uniform and the reaction is not sufficient, the excess chlorine gas will be evaporated, causing a great waste of chlorine gas and reducing the reaction rate. [0003] Usually, the raw material of chlorine gas is liquid chlorine, which needs to be vaporized and passed into the chlorination reaction kettle of the workshop to contact with wax oil for reaction. The existing liquid chlorine vaporization uses a liquid chlorine vaporizer for vaporization an...

AI Technical Summary

Problems solved by technology

The existing liquid chlorine vaporization uses a liquid chlorine vaporizer for vaporization and then directly supplies production. This method has the following disadvantages: 1) Low vaporization efficiency

This vaporization method is often inefficient, requiring larger or more chlorine buffer tanks to pre-store the steam to supply the production of multiple workshops or multiple chlorination production lines, and it is difficult to adapt to the needs of production expansion

2) Insufficient vaporization

The liquid chlorine raw material is vaporized only through one liquid chlorine vaporizer. Due to the short stroke in the liquid chlorine vaporizer, the vaporization is not sufficient, and there are small droplets of chlorine gas when it is supplied to production. In this case, it cannot be evenly distributed and mixed with The contact reaction of wax oil leads to incomplete utilization of raw materials and waste, and increases the chlorine content in the tail gas of the production line, which increases the workload of waste gas recovery and treatment

3) There are potential safety hazards, etc.

In the existing vaporization method, only one accident absorption tower is set up to collect and process the chlorine gas leaked from the liquid chlorine tank truck. Not only the tail gas treatment is not thorough, but also the toxic gas monitoring in the vaporization workshop is not strict, and there are hidden dangers in production safety, etc.

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