攻关挖潜降成本——兖矿鲁南化工环己酮车间改进原料苯掺配工艺纪实

Core Insights - The market research indicates that hydrogenated benzene has a significant cost advantage over petroleum benzene [1] - However, trace organic impurities in hydrogenated benzene may impact the hydrogenation reaction of cyclohexanone, necessitating the identification of specific influence points to address [1] Group 1: Cost Structure and Raw Material Usage - The proportion of benzene in the total raw material cost for Lunan Chemical has reached 21%, with nearly 300,000 tons of benzene used annually in the cyclohexanone unit [1] - The primary raw materials used in the industry are petroleum benzene and hydrogenated benzene, with petroleum benzene being purer but more expensive [1] - As the system stabilizes, there is an urgent need to diversify benzene raw materials and reduce costs [1] Group 2: Implementation and Results - The cyclohexanone workshop has implemented strict quality control measures for incoming hydrogenated benzene and conducted research on production processes at suppliers [2] - Initial blending of hydrogenated benzene began with a 20% ratio, which has been increased to 69.5% by Q1 2025, resulting in a reduction of production costs by several dozen yuan per ton [2] - The local production of hydrogenated benzene has also led to savings in transportation costs, contributing to an annual reduction in raw material costs of nearly 10 million yuan [2] Group 3: Innovation and Future Plans - The successful application of hydrogenated benzene demonstrates the workshop's innovation capabilities and sets a benchmark for cost reduction and efficiency improvement at Lunan Chemical [3] - The workshop plans to continue optimizing processes and researching raw material structures to further explore cost reduction potential and support high-quality development [3]