| 盐酸改性HZSM-5及Mo-基催化剂的MDA反应活性 |
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| 引用本文： | 王红霞,赵婷婷.盐酸改性HZSM-5及Mo-基催化剂的MDA反应活性[J].哈尔滨师范大学自然科学学报,2012,28(1):70-73. |
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| 作者姓名： | 王红霞 赵婷婷 |
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| 作者单位： | 哈尔滨师范大学 |
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| 基金项目： | 黑龙江省普通高等学校青年学术骨干支持计划项目 |
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| 摘 要： | 采用盐酸溶液在303 K对HZSM-5分子筛进行预处理,并以处理后的分子筛制备相应的Mo-基催化剂.分子筛和催化剂采用XRD和NH3-TPD等手段进行表征,利用甲烷无氧芳构化(MDA)反应评价Mo-基催化剂的催化活性.结果表明,指定实验条件下的盐酸处理在一定程度上降低了分子筛的结晶度,降低了分子筛上的B酸量,改性后的Mo-基催化剂在MDA反应中表现很好的稳定性.
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| 关 键 词： | 盐酸 预处理 HZSM-5分子筛 Mo-基催化剂 甲烷无氧芳构化 |
Modification of HZSM- 5 Zeolite by Hydrochloric Acid and Catalytic Performance of Mo - based Catalyst for Methane Dehydroaromatization Reaction |
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| Wang Hongxia,Zhao Tingting.Modification of HZSM- 5 Zeolite by Hydrochloric Acid and Catalytic Performance of Mo - based Catalyst for Methane Dehydroaromatization Reaction[J].Natural Science Journal of Harbin Normal University,2012,28(1):70-73. |
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| Authors: | Wang Hongxia Zhao Tingting |
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| Institution: | (Harbin Normal University) |
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| Abstract: | The pretreatment with HC1 solution at 303 K was applied to modify HZSM -5 zeolite, and the Mobased catalysts were prepared by using the modified HZSM -5 zeolite as support and tested for catalytic performance of methane dehydroaromatization reaction. The modified Mo - based catalysts show a higher stability than that of Mo/HZSM - 5 catalyst prepared with unmodified with HZSM - 5 zeolite. The effect of acid treatment on the structure and acidity of HZSM - 5 zeolite and Mo - based catalysts were studied by XRD and NH3 - TPD methods. The results show that the acid treatment to HZSM - 5 at given experimental conditions led to a decrease in the crystallinity of HZSM -5 zeolite and the number of the Brnsted acid sites to a certain degree. |
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| Keywords: | HC1 acid Pretreatment HZSM 5 zeolite Mo based catalyst Methanedehydroaromatization in the absence of oxygen |
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