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By the end of October, the energy consumption of Jingmen Petrochemical's Ketone Heavy Duty Unit dropped to 100 kg/t for the first time, marking a historic high in efficiency. This achievement followed the implementation of the first domestic "reverse sequence" process, which led to three consecutive reductions in energy consumption. The Ketone Benzene Heavy Duty Unit at Jingmen Petrochemical is one of the few facilities capable of producing ultra-high viscosity index lubricant base oil (VHVI) and high viscosity index lubricant base oil (HVI). It produces high-quality products like HVI120BS and HVI150BS, filling a critical gap in the domestic market. Just two years ago, this unit was known as a major energy consumer, with energy consumption consistently hovering around 200 kg/day of standard oil. In June 2006, Jingmen Petrochemical initiated an adaptation project for lubricants. The unit successfully introduced China’s first "reverse sequence and ordering" process, reducing energy consumption by 80 units. Seizing this opportunity, the company established a "team energy management person in charge" system, breaking down annual energy targets and assigning responsibility for water, electricity, gas, and fuel to each team. Energy-saving initiatives were implemented within teams, with competitions involving inspections, analysis, feedback, evaluations, and rewards or penalties. Through horizontal and vertical comparisons, staff identified best practices in energy management, set benchmarks, and fostered a strong energy-saving culture where everyone understood their role and shared the responsibility. Since the start of this year, the team has focused on addressing the energy-saving bottleneck of low yield in high-viscosity base oils. Through active technological research, they optimized the production of HVI500N raw materials by lowering the temperature during deoiling and crystallization, using filtrate for secondary dewaxing, and perfecting the "full filtrate recycling" process. As a result, the yield of HVI500N increased by 7.49% year-on-year. Regular defrosting and depressurization of the sleeve crystallizer helped stabilize production, while strict control over key process parameters ensured a steady operation rate above 90%. Despite limited production conditions in the first ten months of the year, the unit’s energy consumption continued to decline. Not only did it fall below the 100 kg/ton standard oil mark, but it also decreased by 17 units compared to 2006 and by 3 units compared to 2007, achieving a "three consecutive declines" in energy consumption after the facility upgrade.

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