Effect of Co additive on the formation of carbon deposit on Mo/MCM-22 catalyst for methane dehydro-aromatization
文献类型：期刊论文
| 作者 | Liu, HM; Shen, WJ; Bao, XH; Xu, YD |
| 刊名 | chinese journal of catalysis
 |
| 出版日期 | 2004-06-01 |
| 卷号 | 25期号:6页码:495-500 |
| 关键词 | cobalt molybdenum MCM-22 zeolite methane dehydro-aromatization carbon deposit |
| 英文摘要 | methane dehydro-aromatization (mda) under non-oxidative conditions was carried out over the mo/ mcm-22 catalyst modified by co additive, and the results suggested that the addition of co dramatically improved the activity and stability of mo/mcm-22. moreover, the chemical nature and physical properties of the carbon deposit formed on mo/mcm-22 and co-mo/mcm-22 catalysts were studied by temperature-programmed reaction with hydrogen (tph) and temperature-programmed reaction with co2 (tpco2) combining with thermal gravimetric analysis (tga). the results showed that there were two kinds of carbon deposit formed on the surface of the catalysts during mda. tph experiment only had effect on the carbon deposit burnt-off at high temperature. however, tpco2 experiment could result in diminishing of the carbon deposit burnt-off at both low temperature and high temperature. the formation of the two kinds of carbon deposit was distinctly suppressed on the co-modified mo/mcm-22 catalyst, which directly led to the obvious increase of the stability of the mo/mcm-22 catalyst in mda. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, applied ; chemistry, physical ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 关键词[WOS] | nonoxidative conditions ; mo/hzsm-5 catalyst ; induction period ; conversion ; benzene ; absence |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000222531200016 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/139335]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, HM,Shen, WJ,Bao, XH,et al. Effect of Co additive on the formation of carbon deposit on Mo/MCM-22 catalyst for methane dehydro-aromatization[J]. chinese journal of catalysis,2004,25(6):495-500. |
| APA | Liu, HM,Shen, WJ,Bao, XH,&Xu, YD.(2004).Effect of Co additive on the formation of carbon deposit on Mo/MCM-22 catalyst for methane dehydro-aromatization.chinese journal of catalysis,25(6),495-500. |
| MLA | Liu, HM,et al."Effect of Co additive on the formation of carbon deposit on Mo/MCM-22 catalyst for methane dehydro-aromatization".chinese journal of catalysis 25.6(2004):495-500. |
入库方式： OAI收割
来源：大连化学物理研究所
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