甲基叔丁基醚装置转产碳四叠合工艺  

Methyl tert-butyl ether unit switch to C4 dimerization process

作　　者：高桐 孙楠楠 马兴亮 周婷 韩雪 GAO Tong;SUN Nan-nan;MA Xing-liang;ZHOU Ting;HAN Xue(Process Department of Petrochemical Engineering Co Ltd,CNOOC,Qingdao 266000,China)

机构地区：[1]中海油石化工程有限公司工艺系统室

出　　处：《石化技术与应用》2019年第6期410-412,共3页Petrochemical Technology & Application

摘　　要：对3万t/a的甲基叔丁基醚装置进行叠合工艺改造用以生产二异丁烯,并利用Petro-SIM 6.1软件模拟了叠合工艺流程。结果表明:以碳四为原料,大孔磺酸阳离子树脂为催化剂,叔丁醇为抑制剂,在装置总转化率设定值为93%,叠合反应压力和温度分别为0.5~1.5 MPa,50~120℃,萃取塔操作压力为0.55~0.85 MPa,抑制剂回收塔为微正压的条件下,转产后装置可以生产质量分数为87.7%的二异丁烯。A 30 kt/a methyl tert-butyl ether unit was improved to produce diisobutylene by the dimerization process,the reaction process was simulated by Petro-SIM 6.1 software.The results showed that the mass fraction of 87.7% of diisobutylene from the post-production unit was produced with C4,cation macroporous sulfonate resin and tert-butanol as raw material, catalyst and inhibitor respectively, under the conditions of set value of total conversion 93%,reaction pressure and temperature of dimerization process 0.5-1.5 MPa,50-120 ℃ respectively,extraction tower operating pressure 0.55-0.85 MPa,and micro-positive pressure in recovery tower.

关 键 词：碳四 二异丁烯 甲基叔丁基醚 叠合工艺 异辛烷 

分 类 号：TQ221.213[化学工程—有机化工]