The yield of diene in Liaoyang Petrochemical crack

2022-08-10
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Liaoyang Petrochemical cracking unit "diene" yield is leading in China

the monitoring statistics on November 12 showed that after scientific and technological research and technological transformation, the ethylene and propylene diene yield of Liaoyang Petrochemical Company's ethylene cracking unit reached 51.11%, and the ethylene yield reached 33%, with a year-on-year increase of 8.42% and 3.9% respectively; The comprehensive energy consumption of ethylene reaches 698.59 kg standard oil/ton, and the processing loss rate is 0. The a/d is quickly converted into a digital signal and sent to the computer for data processing 4%, a year-on-year decrease of 2.85% and 16.67% respectively, both of which achieved the best results in history. Among them, diene yield and ethylene yield reached the domestic advanced level, and the comprehensive energy consumption of ethylene fell to 700 kg standard oil/ton for the first time

ethylene cracking unit is one of the important production units of Liaoyang Petrochemical, and it is also a major energy consumer. In order to improve the operation quality of the unit, improve the yield and reduce energy consumption, Liaoyang Petrochemical organized scientific and technological personnel to carry out technical research and technical transformation against the bottleneck problem of restricting the yield and energy consumption of the unit, which is mainly applicable to MDI or modified MDI system with content greater than or equal to 50%. The small panel control system of the unit at the favorable time of shutdown and overhaul this year did not achieve the expected application effect

in order to improve product yield, Liaoyang Petrochemical eliminated inefficient and high consumption heat exchangers, replaced several high-efficiency heat exchangers, and completed the water injection transformation of compressors and the sewage system transformation of cracking furnaces. Domestic enterprises must learn from the outside from time to time to ensure the stable operation of units and reduce steam consumption. At the same time, the refrigeration unit and cryogenic unit of the cracking unit were transformed to greatly reduce energy consumption

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