摘要
针对甲苯选择性歧化工艺能生产含高浓度对二甲苯的混合二甲苯、但不能处理C9A的特点 ,提出在芳烃联合装置中将甲苯选择性歧化和传统歧化组合在一起的组合工艺。以PRO/Ⅱ流程模拟软件为工具 ,研究了甲苯 /C9芳烃在两个歧化单元中的质量比对产品产量和装置处理规模的影响。研究表明 ,随分配到选择性单元甲苯量的增加 ,芳烃联合装置对二甲苯的产量下降 ,苯产量增加 ,各单元处理规模下降 ;
In view of the fact that selective disproportionation process,though high in p-xylene concentration in the product,is not able to convert C 9A,a new process is proposed combining toluene selective disproportionation process with traditional toluene disproportionation process in the aromatic complex unit.Influence on productivity and production scale of varying toluene distribution between two units was studied using the simulation software PRO/Ⅱ.Research results showed that with increasing toluene drawing ratio to selective disproportionation unit,p-xylene productivity decreased and benzene productivity increased and production scale of each unit also decreased.This combined process was a good approach for revamping aromatic combined unit.
出处
《石油化工》
CAS
CSCD
北大核心
2003年第9期788-791,共4页
Petrochemical Technology
