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应用常规的比表面和酸性分析方法并结合重馏分油微反活性测试,对实验室制备的多产柴油催化裂化催化剂进行了研究。用数学式DI=(柴油产率/重油产率)×(柴油产率/焦炭产率)表征了催化剂对柴油的选择性。揭示了多产柴油催化剂的结构和化学特征。多产柴油催化剂与传统的催化裂化催化剂的明显区别是:微孔(<1.7nm)表面积含量低于20%,微孔酸中心含量低于10%。提出了多产柴油催化剂的研制方法。
The conventional diesel engine catalytic cracking catalyst prepared by laboratory was studied by using routine specific surface and acid analysis methods combined with the micro-reactivity test of heavy distillate oil. The diesel selectivity was characterized by the mathematical formula DI = (diesel yield / heavy oil yield) x (diesel yield / coke yield). Reveals the structural and chemical characteristics of a multi-productive diesel catalyst. The obvious difference between the multi-productive diesel catalyst and the traditional catalytic cracking catalyst is that the microporous (<1.7nm) surface area content is less than 20% and the microporous acid center content is less than 10%. Proposed a research and development of productive diesel catalyst.