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In the appraisal and appraisal of the diene yield special competition recently conducted by China Petrochemical Corporation, Yangzi Petrochemical won the contest progress award. Since the beginning of this year, the yield of diene from Yangzi Petrochemical continued to increase from 46.10% in January of this year to 46.55% in August.
Diene yield refers to the yield of ethylene and propylene products in ethylene plant production and is an important economic and technical indicator of ethylene plants. In order to increase the yield of diene, this year, according to the actual production status of the cracking furnace, Yangzi Petrochemical has transformed the light hydrocarbon cracking furnace and optimized the ethylene raw material structure using internal and external resources. This not only improves the yield of diene, but also increases the production capacity. 30%. On this basis, Yangzi Olefins Factory also adopted technological transformations to introduce its own propane to ethylene cracking furnaces as raw materials, and to recover the ethylene-rich tail gas of the polyethylene plant and the separation unit propane tank, which not only reduced the raw materials The cost also successfully increased the yield of diene, in which the ethylene yield increased by about 0.4% compared to the same period of last year.
In order to further increase the yield of diene, Yangzi Petrochemical has also made great efforts to optimize the cracking operation conditions. The Yangzi olefin plant closely tracked the impact of different raw material cracking on ethylene yield, diene yield, and system material balance, and explored the optimal operating conditions of the ethylene plant. At the same time, it collaborated with the Yangtze Research Institute to optimize the operation using the SPYRO simulation software to make the cracking reaction. Always in a better range. In addition, Yangzi Petrochemical and East China University of Science and Technology have also developed APC's advanced control system for ethylene plant production. Through advanced control systems and combined with manual data analysis, Yangzi Petrochemical has made timely adjustments and real-time optimization to ensure optimal cracking depth and maximize the yield of diene.
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