Sino-Russian cooperation to successfully complete the production of acetylene from coal is expected to replace the calcium carbide process with high energy consumption and heavy pollution
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It is understood that acetylene is currently produced mainly by limestone and coke using the calcium carbide method. A large amount of waste water and calcium carbide slag are produced during the production process, and environmental protection measures need to be taken to eliminate environmental pollution. The coal-based acetylene technology developed this time uses a plasma torch to generate high-temperature plasma hydrogen and pulverized coal to chemically react to produce acetylene-containing gas mixture. After separation and concentration, high-quality acetylene can be obtained. The acetylene produced by this method is low in cost, clean and efficient, and has little pollution to the environment. In the increasingly prominent environment and resource issues today, coal-to-acetylene has become a development direction in the international arena. South Africa and other countries have world-leading technologies, while China has few companies involved in this field. Therefore, some domestic companies are Seek international cooperation.
Xinjiang Tianye Group originally built a calcium carbide plant in Shihezi, Xinjiang, and produced acetylene using calcium carbide method. However, the cost of the raw material coke produced by the calcium carbide process is high. With environmental considerations, the group initiated the idea of ​​extracting acetylene directly from coal. After extensive contacts and negotiations, the group selected the Russian Academy of Sciences in Russia, which specializes in plasma technology research, and the Chinese Academy of Sciences and Fudan University, which have some research in this area.
It is understood that the current research unit has built two sets of acetylene test equipment for coal pyrolysis in the world with the highest power of 2 MW in Hefei. The maximum torch power in the test reached 1.28 megawatts, and the conversion rate of carbon reached 20%, and acetylene can be produced. 1600 tons, just completed a successful pilot test. As the project is directly involved in the basic research of industrial technology during the development process, the research results obtained can be directly applied to industrial production, and it will have a profound impact on the use of clean coal and industries that use acetylene gas as raw materials. On February 12, the relevant scientific research personnel of the Chinese Academy of Sciences came to Xinjiang Tianye Group to conduct a centralized technical training for employees to ensure that the technology was used in production as soon as possible.