Catalytic dry gas to ethylbenzene technology
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The catalytic dry gas to ethylbenzene production technology is a method that involves reacting ethylene and benzene, present in the dry gas generated by units such as catalytic cracking and catalytic pyrolysis in refineries, to produce ethylbenzene. The “catalytic production of ethylbenzene from dry gas” technology, which boasts independent intellectual property rights, is a project that was successfully developed through collaboration between the Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, CNPC Fushun Company, Sinopec Luoyang Engineering Co., Ltd., and China National Petroleum Corporation. This technology has evolved from pilot-scale and laboratory tests to industrial production, progressing from the first generation to the fifth generation as of today. The continuously developed and innovated technology for producing ethylbenzene from catalytic dry gas has given rise to a series of proprietary technologies with independent intellectual property rights, and more than 40 invention patents have been granted in various countries and regions including China, the United States, and Europe. It has been successively put into use in various companies such as CNPC, Sinopec, Sinochem, and local refineries; by 2019, a total of 23 industrial units for producing ethylbenzene from dry gas were in operation or under construction in China.
If the catalyzed dry gas can be effectively recovered and reused, it holds great potential; otherwise, it serves only as part of the fuel for the entire plant, which represents a waste in terms of hydrocarbon recovery! I also specifically looked up relevant information; this technology is one of the earlier processes to be adopted in China. Over the years it has developed, and there are reasons for its existence as well as prospects for its further development, making it worth paying attention to.
The key lies in the scale of the refinery; when the scales of catalytic cracking and catalytic pyrolysis units are large, the efficiency of recovering dry gas for the production of ethylbenzene is significant.
Sometimes the pros and cons are balanced; it depends on how the boss views it. There is no best, only better; only what is suitable can maximize efficiency.