Carbide Process (PVC Industry) Of Acetylene Purification System In The Process Of Optimization

China's western region is very rich in resources, such as limestone, coal, salt and PVC industry in the western region, due to the relatively cheap cost, PVC production by calcium carbide method, rather than the relatively high cost of oil ethylene method. It is because of domestic PVC industry in China the mainstream of the production process of calcium carbide method, so the study of the production process by calcium carbide method is relatively more in-depth and comprehensive, system. With the rapid development of domestic chlorine alkali industry in recent years, gathered a large number of chlorine alkali enterprises in our country in the western region construction. However, the relative shortage of western region, in the production of PVC to spend a lot of water, this also gradually become the western regional water shortage of chlorine alkali enterprises to further expand production bottlenecks.In this paper, we mainly study the subject mainly in the process of PVC by calcium carbide process acetylene section, acetylene section is the production of PVC in the process of source, the quality of acetylene gas is directly related to the follow-up processes, and the quality of products, especially acetylene gas in S/P and other impurities will directly cause the catalyst for the subsequent process of failure, resulting in a large number of raw gas can react, lead directly to the cost of waste. Just because of this, the paper focuses on the analysis of the system of the source of the impurity, the principle of the clean, and the cleaning equipment.At the same time, the study of the clean sewage wastewater, in the premise of not affecting the quality of acetylene, mainly in reducing the new water and reducing the output of the case, the clean water to the test, to ensure that in the case of safety will contain the precipitation of acetylene gas and then use of waste water.Finally, to help the enterprise to complete the installation of equipment, the quality of acetylene is still able to meet the standards, while no longer new wastewater, resulting in environmental pressures.