摘要
大庆石油化工总厂炼油厂混合二甲苯分离装置的乙苯分离系统,经过重新理论计算,改变了乙苯产品的抽出位置和乙苯塔的进料口位置,进一步确定了回流比,优化操作条件,解决了装置开工后乙苯产品质量长时间不合格的老大难问题。不但开工初期乙苯产品质量达到合格的时间可缩短一半,节省了大量的开工费用,而且产品质量显著提高,基本上杜绝了废品现象。经过半年多的生产考验,证明这项技术改造是可行的、合理的。该项技术措施投资少、见效快,产品质量高且稳定,经济效益显著。
Theoretical calculations are carried out for the ethyl benzene (EB) tower of the mixed xylene separation unit of Daqing General Petrochemical Works. Based on the cal- culation the EB draw-off and feed plates are relocated, the reflux ratio further determined and operating conditions optimized. As a result, the long existing problem of producing off- specification EB is solved. Not only the start-up period for EB product to meet the specifica- tion is shortened by half, representing a big save in operating cost, but also the quality of EB product is significantly enhanced, basically putting an end to off-specification EB. Half-year commercial operation has confirmed that this revamping is rational and feasible,which has the merits of low cost, easy to implement, high and stable product quality and significant profit.
出处
《石油炼制》
CSCD
1993年第5期6-10,共5页
