β/MCM-41的制备及其在烷基化反应中的催化性能  

Synthesis of β/MCM-41 and its catalytic performance in alkylation

作　　者：常有国[1] 张毅[1] 王学丽[1] 连丕勇[1] 

机构地区：[1]辽宁石油化工大学石油化工学院材料化学系,辽宁抚顺113001

出　　处：《工业催化》2006年第1期13-16,共4页Industrial Catalysis

基　　金：国家自然科学基金项目(29792070)

摘　　要：用水热合成二步晶化法制备β/MCM-41中微孔复合分子筛,用XRD、N2的吸附-脱附法和IR等方法进行表征,结果表明,合成的复合型分子筛同时具有中孔与微孔结构。在苯与长链烯烃烷基化反应中表现出良好的活性、选择性,有可能替代HF成为一种环境友好的新型催化剂。A β/MCM-41 composite molecular sieve with mesoporous and microporous structure was prepared under hydrotherlnal conditions by two-step crystallization process. As-synthesized samples were physicochemically characterized by X-ray diffraction （XRD）, N2 adsorption-desorption and infrared analysis（IR）. The results showed existence of well-structured microphase β zeolite and mesophase MCM-41 in the composite materials. Catalytic properties of the composite for alkylation of benzene with long-chain olefin were studied. β/MCM-41 exhibited good catalytic activity and selectivity in alkylation of benzene with long-chain olefins and may be substitute for HF as an environmentally-benign catalyst in long chain alkylbenzene production.

关 键 词：复合分子筛 水热合成法 烷基化催化剂 活性 选择性 

分 类 号：TQ426.6[化学工程] TE624.48[石油与天然气工程—油气加工工程]