Modern chemical production involves many dangerous goods, including raw materials, fuels, intermediate products and finished products, most of which are flammable, explosive, toxic and corrosive. The flammability, reactivity and toxicity of chemicals themselves determine the frequency and severity of accidents in the chemical industry. Such as the explosion of reactors and pressure vessels and the leakage of toxic chemicals. At the same time, it will also cause environmental pollution, major industrial accidents, fires, explosions, poisoning and so on. There are also special requirements in storage and transportation. In addition, the chemical process conditions are harsh, such as high temperature, high pressure, low temperature and high vacuum. Large-scale production, usually using large equipment, can significantly reduce the construction investment and production cost of unit products, which is conducive to improving labor productivity.

The characteristics of the above chemical industry, especially large-scale chemical equipment, make a lot of chemicals produced in the process, which increases the risk of material leakage. This makes chemical safety design more important in chemical design. The continuous and centralized operation of chemical production and the automatic control of the process have stricter requirements on the processing capacity of process equipment and process parameters, and also put forward higher requirements on the reliability of control systems and personnel. The synthesis of new materials and new processes and the adoption of new technologies may bring new dangers. Safety evaluation technology of hazard identification and qualitative and quantitative evaluation.

I hope it helps you.