Metathesis of Butylene-2 and Ethylene to Propylene over 3.0Mo/(Hβ+γ-Al_(2)O_(3))Catalysts with Differentγ-Al_(2)O_(3)Contents
Metathesis of Butylene-2 and Ethylene to Propylene over 3.0Mo/(Hβ+ γ-Al203) Catalysts with Different γ-Al203 Contents作者机构:Laboratory of Natural Gas Utilization and Applied CatalysisDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023P.R.China
出 版 物:《Chemical Research in Chinese Universities》 (高等学校化学研究(英文版))
年 卷 期:2005年第21卷第2期
页 面:213-216页
核心收录:
学科分类:081704[工学-应用化学] 081705[工学-工业催化] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程(可授工学、理学学位)] 0703[理学-化学]
基 金:the National Natural Science Foundation of China(No.20303019) the National 973 Project of China(No.2003CB615802)
主 题:Butylene-2 Ethylene Propylene Metathesis Mo-impregnated(Hβ+γ-Al_(2)O_(3))catalyst {γ-Al_(2)O_(3)}content TPR/TPD/XRD characterization
摘 要:A series of 3.0Mo/(Hβ+γ-Al_(2)O_(3))samples withγ-Al_(2)O_(3)contents in the range of 0_100%(mass fraction)was studied by means of XRD,NH_(3)-TPD,TPR and BET determinations for characterizing their *** Hβzeolite structure in the 3.0Mo/Hβsample can be effectively stabilized by adding someγ-Al_(2)O_(3)to Hβzeolite.γ-Al_(2)O_(3)mainly favors the formation of polymolybdate or multilayered Mo oxide,while Hβmainly forms the Al_(2)(MoO_(4))_(3)species,as evaluated by the TPR *** used as the catalyst for the metathesis of butylene-2 and ethylene to propylene,there exists a close correlation between the specific surface area and stability of the *** specific surface area of the catalyst shows the maximum when{(Hβ+}γ-Al_(2)O_(3))contains 30%γ-Al_(2)O_(3),which is in agreement with that of the time needed for the reaction *** the case of maximum surface area,the rate of coke deposition is the minimum.