After smoothly completing the various maintenance tasks such as changing agents, as early as 6:00 on July 9th, Qilu Petrochemical Company's Shengli Refinery Heavy Oil Hydrogenation Unit A started construction.
After one cycle of continuous vignetting, on June 21, due to the deactivation of the catalyst, refinery heavy oil heavy oil hydrogenation unit A was stopped for overhaul. In the 12-day overhaul, the Qilu refinery overcame the difficulties caused by the hot weather to repair the equipment, and successfully completed the replacement of 260 tons of catalysts and the overhaul of high-pressure heat exchangers. According to the 32-day construction period, the heavy oil hydrogenation unit A is expected to produce qualified products four days ahead of schedule.
After one cycle of continuous vignetting, on June 21, due to the deactivation of the catalyst, refinery heavy oil heavy oil hydrogenation unit A was stopped for overhaul. In the 12-day overhaul, the Qilu refinery overcame the difficulties caused by the hot weather to repair the equipment, and successfully completed the replacement of 260 tons of catalysts and the overhaul of high-pressure heat exchangers. According to the 32-day construction period, the heavy oil hydrogenation unit A is expected to produce qualified products four days ahead of schedule.
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