| MoO_3/HZSM-5催化剂上重芳烃加氢脱烷基反应 |
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| 引用本文： | 董娇娇,朱瑾,申群兵,刘子玉,朱学栋,朱子彬. MoO_3/HZSM-5催化剂上重芳烃加氢脱烷基反应[J]. 石油化工, 2008, 37(3): 232 |
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| 作者姓名： | 董娇娇 朱瑾 申群兵 刘子玉 朱学栋 朱子彬 |
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| 作者单位： | 1. 华东理工大学,工业大型反应器工程教育部工程研究中心,上海,200237
2. 华东理工大学,工业大型反应器工程教育部工程研究中心,上海,200237;华东理工大学,化学工程联合国家重点实验室,上海,200237 |
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| 基金项目： | 中国石油天然气股份有限公司科学研究与技术开发项目 |
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| 摘 要： | 采用等体积浸渍法制备了不同负载量的MoO3/HZSM-5催化剂,考察了MoO3/HZSM-5催化剂上MoO3负载量和工艺条件对重芳烃(C9+)加氢脱烷基反应的影响;并用X射线衍射、吡啶吸附红外光谱、氨程序升温脱附等技术对催化剂进行了表征。实验结果表明,重芳烃在MoO3/HZSM-5催化剂上的反应性能与HZSM-5分子筛上MoO3的分散状态、催化剂的酸性和酸量及工艺条件有关;当MoO3/HZSM-5催化剂中MoO3的负载量(质量分数)接近15%时,MoO3在HZSM-5分子筛表面呈单层分散。采用15%MoO3/HZSM-5催化剂,在550℃、3.0MPa、重时空速3.62h-1及V(H2)∶V(C9+)=800的反应条件下,重芳烃转化率达55.94%,苯、甲苯、二甲苯(BTX)收率大于50%,BTX总选择性达90%以上。
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| 关 键 词： | 三氧化钼 HZSM-5分子筛 负载型催化剂 重芳烃 加氢脱烷基 |
Hydrodealkylation of Heavy Aromatics on MoO_3/HZSM-5 Catalyst |
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| Dong Jiaojiao,Zhu Jin,Shen Qunbing,Liu Ziyu,Zhu Xuedong,,Zhu Zibin. Hydrodealkylation of Heavy Aromatics on MoO_3/HZSM-5 Catalyst[J]. Petrochemical Technology, 2008, 37(3): 232 |
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| Authors: | Dong Jiaojiao Zhu Jin Shen Qunbing Liu Ziyu Zhu Xuedong Zhu Zibin |
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| Affiliation: | Dong Jiaojiao1,Zhu Jin1,Shen Qunbing1,Liu Ziyu1,Zhu Xuedong1,2,Zhu Zibin1(1.Engineering Research Center of Large Scale Reactor Engineering , Technology,East China University of Science , Technology,Shanghai 200237,China,2.State Key Laboratory of Chemical Engineering,China) |
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| Abstract: | A series of MoO3/HZSM-5 catalysts with different MoO3 loadings were prepared by isochoric impregnation and used in hydrodealkylation of heavy aromatics(C+9).The relationship between structure of catalyst and its catalytic activity for heavy aromatics hydrodealkylation was investigated.The catalysts were characterized by means of XRD,Py-IR and NH3-TPD.Catalytic performance of the catalysts relates to dispersing state of MoO3 on HZSM-5 zeolite,acidity and acid amount of catalyst,and reaction conditions.The Mo... |
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| Keywords: | molybdic oxide HZSM-5 zeolite supported catalyst heavy aromatics hydrodealkylation |
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