优化纯苯塔操作回流比的实践  

Practice of Optimizing Pure Benzene Tower Operation Reflux Ratio

作　　者：李瑞萍[1] 张荣德[1] 孔凡国[1] 

机构地区：[1]济南钢铁集团总公司焦化厂,山东济南250101

出　　处：《山东冶金》2008年第1期18-19,共2页Shandong Metallurgy

摘　　要：在酸洗苯精制生产中,由于加工量增加,塔内阻力增大。为降低塔压,通过计算最小回流比,在保证产品质量的前提下,优化纯苯塔操作,回流比从1.5降为0.6,塔压降为0.048 MPa,轻苯的加工量由110 t/d提高到120 t/d,年降低循环水消耗45.36万t,年降低煤气消耗量74.88万m3。In acid-washing benzene refinement of Coke Plant, because of light benzene yield increment, the resistance of the pure benzene tower enlarged. In order to lower tower pressure, by computing a minimum reflux ratio and in the premise of ensuring product quality, adjusting pure benzene tower process, reflux ratio from 1.5 declined to 0.6, the tower pressure declined to 0.048 MPa. Then light benzene yield was raised from 110 t/d to 120 t/d, circulating water depletion declined 453 600 tons per year and coal gas depletion declined 748 800 m^3 per year.

关 键 词：苯精制 回流比 纯苯塔 塔压 

分 类 号：TQ522.62[化学工程—煤化学工程]