浅析歧化催化剂的性能对比及国产化可行性

PERFORMANCE OF TRANSALKYLATION CATALYSTS AND THE FEASIBILITY OF LOCALIZATION

根据国内歧化装置生产数据,将国外某催化剂(新型剂)和国内的歧化催化剂(对比剂)进行了对比和分析,结果表明,对比剂在反应转化率、选择性和反应温度上要优于新型剂,但是,对比剂的氢烃比高,大约是新型剂的两倍左右。针对上述对比结果,对国内某工厂的歧化装置进行了分析研究,从反应条件、设备性能等方面分析该装置歧化催化剂国产化的可能性以及由此带来的问题,并提出了自己的建议。

This article studies and analyzes the performance difference between a new catalyst,a toluene disproportionation and transalkylation catalyst developed by an overseas company,and a contrast catalyst,a homemade toluene disproportionation and transalkylation catalyst developed by a domestic company, based on the operation data of a transalkylation unit at home.The results show that the contrast catalyst is superior to the new catalyst in translation rate,selectivity and reaction temperature,but H/O ratio of the contrast catalyst is about two times that of the new catalyst This article studies the transal-kylation unit in a domestic plant,analyzes the feasibility of homemade transalkylation catalyst from aspects of reaction conditions and equipment performance, points out the problem which will be brought by catalyst change,and puts forward some suggestions.