摘要
介绍了影响甲基叔丁基醚(MTBE)装置产品质量不合格的因素,从C4原料含游离水、甲醇原料水含量大于0.5%,醇烯比过大、过小,尤其是C4原料中C5含量大于1%等方面进行分析。采取上游液化气精制装置和气分装置加强原料罐脱水,MTBE装置加强C4原料罐脱水,并增加脱水频次。加强外购甲醇化验分析准确率,不合格品拒收,根据装置运行情况的不断变化及时调整醇烯比在合理的范围,优化上游装置操作降低C5含量小于1%等一系列措施,使MTBE产品质量合格,为后续油品调和提供了保证,实现了装置的平稳运行。
The factors affecting the quality of MTBE plant were introduced.The analysis was made from the aspects of free water content in C4 raw material,methanol raw water content more than 0.5%(m),excessive and small alcohol-ene ratio,especially C5 content more than 1%(m)in C4 raw material.The upstream liquefied gas refining unit and gas separation unit are adopted to strengthen the dewatering of raw material tank,and the MTBE unit is used to strengthen the dewatering of raw material tank of C4,and increase the frequency of dewatering.Strengthen the accuracy of analytical analysis of purchased methanol,rejection of unqualified products,timely adjust the ratio of alcohol to olefin in a reasonable range according to the continuous change of operation conditions of the unit,optimize the operation of upstream unit and reduce the C5 content by less than 1%(m)and a series of measures,so as to make the quality of MTBE qualified and provide guarantee for subsequent oil blending,the smooth operation of the unit is achieved.
作者
刘娟
Liu Juan(Yan’an Petrochemical Works,Shanxi Yanchang Petroleum(Group)Co.,Ltd.,Yan'an 727406)
出处
《石化技术》
CAS
2019年第9期120-122,共3页
Petrochemical Industry Technology
关键词
产品质量
影响因素
分析
对策
Product quality
influence factor
analysis
countermeasure
