Study On Analysis Of Deactivation Of MTBE Catalyst And The Process Optimization

Methyl tert-butyl ether(MTBE)is widely used in petroleum products to reconcile due to its excellent performance in gasoline blending,so MTBE is the fastest-growing petrochemical products in recent years.The catalyst for its short life of MTBE unit is encountered during operation,from the point of view of the process unit deactivation of the catalyst,and the catalyst is caused by living the most important question: catalyst activity center hydrogen ions are alkali cation substituted;sulfonic acid catalyst on the root off;catalyst pores become clogged.Based on above analysis of deactivation of the catalyst,Qingdao refinery MTBE unit to optimize the reaction of the MTBE unit before adding a pre-reaction tank,plus pre-reaction tank D112 catalyst in the reactor is well protected,so extended operating cycle of the MTBE unit,and for the DIB content,MSBE content,TBA content,high methanol content make corresponding adjustment program analyzes the changes in the life of the device before and after the improvement of the catalyst.Qingdao refinery MTBE unit optimized on the basis of Quanzhou Petrochemical further optimize the adjustment means,prior to the reaction plus two identical pre-reaction tank,were opening and equipment,the replacement cycle of about six months,protect the bed effect,because the catalyst is inactivated type chromatography,thus greatly extending the life of the catalyst in the reactor.Take measures to optimize other aspects of operating conditions and from the device,the quality control of raw materials and other studies of changes in catalyst life.Qingdao and Quanzhou Petrochemical refinery optimization of MTBE unit processes corresponding to the life of the catalyst have a more significant impact,after Qingdao refinery optimization,catalyst life from about 10 months to 21 months;Quanzhou Petrochemical process optimization MTBE unit after further catalyst life extended to 23 months.