黄文斌,魏强,周亚松,张晴

• 1:中国石油大学(北京)重质油国家重点实验室
• 2:中国石化工程建设有限公司

摘要(Abstract)：

为了提高正构烷烃加氢异构化性能，分别采用机械复合法和原位复合法制备ZSM-5+SAPO-11分子筛和ZSM-5/SAPO-11分子筛，采用等体积浸渍法制备了以分子筛和无定型硅铝(ASA)为载体，Ni、W为活性金属的加氢裂化催化剂。通过X-射线粉末衍射(XRD)、扫描电子显微镜(SEM)、N_2物理吸-脱附分析仪、红外光谱仪(IR)、吡啶红外光谱仪(Py-IR)对分子筛的晶型结构、形貌、孔结构和酸性质等进行了表征，利用N_2物理吸-脱附分析仪和紫外-可见漫反射光谱仪(UV-Vis)对催化剂的孔结构和活性金属配位状态等进行了表征。结果表明，ZSM-5/SAPO-11分子筛更能表现出2种分子筛互相依附的形态，具有更加适宜的酸强度与酸类型分布，更有利于Br?nsted(B)酸和Lewis(L)酸的协同作用。在相同反应条件下，以ZSM-5/SAPO-11分子筛为载体的NiW催化剂异构选择性比以ZSM-5分子筛或ZSM-5+SAPO-11分子筛为载体的NiW催化剂有明显提高。

关键词(KeyWords)： 分子筛;催化剂;原位复合法;加氢裂化;异构选择性

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(22078360)

作者(Author): 黄文斌,魏强,周亚松,张晴

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