Kinetics study for the oxidative dehydrogenation of ethyl lactate to ethyl pyruvate over MoVNbOx based catalysts
文献类型：期刊论文
| 作者 | Zhao, Xueyuan1,2; Zhang, Chuanhui1 ; Xu, Chen1,2; Li, Hong1; Huang, He1,2; Song, Liang1; Li, Xuebing1
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| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2016-07-15 |
| 卷号 | 296页码:217-224 |
| 关键词 | Oxidative dehydrogenation Ethyl lactate Ethyl pyruvate MoVNbOx Kinetics Elementary reaction step |
| 英文摘要 | Mo0.61V0.31Nb0.08Ox and Mo0.61V0.31Nb0.08Ox/TiO2 catalysts were prepared for the oxidative dehydrogenation of ethyl lactate to ethyl pyruvate in a continuous fixed -bed reactor under atmospheric pressure. The transport effects and catalytic stability over Mo0.61V0.31Nb0.08Ox/TiO2 catalyst were investigated to ensure that the experimental results were not significantly influenced by interphase transportation and catalytic deactivation. Mo0.61V0.31Nb0.08Ox/TiO2 catalyst exhibited extremely higher conversion rate of ethyl lactate but relatively lower apparent activation energy in comparison with Mo0.61V0.31Nb0.08Ox indicating its superior catalytic activity beneficial from the good dispersion of active Mo0.61V0.31Nb0.08Ox component on TiO2 support. It was experimentally verified that the conversion rate of ethyl lactate was simply first-order dependence on the partial pressure of O-2 over Mo0.61V0.31Nb0.08Ox/TiO2. The analysis of elementary reaction steps and the derivation of reaction rate equation were performed based on typical Mars-van Krevelen (MvK) redox mechanism under the assumption that surface oxygen vacancies were the most abundant species. The obtained reaction rate equation was a first -order function towards O-2 partial pressure, which was good consistent with the experimental kinetics results. (C) 2016 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Environmental ; Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | VANADIUM MOLYBDENUM OXIDE ; PHASE SELECTIVE OXIDATION ; V-MO CATALYSTS ; LACTIC-ACID ; ACETIC-ACID ; IRON PHOSPHATE ; ACRYLIC-ACID ; MIXED OXIDES ; MOLYBDATE CATALYST ; ETHANE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000375816400024 |
| 源URL | [http://ir.qibebt.ac.cn/handle/337004/8275]  |
| 专题 | 青岛生物能源与过程研究所_多相催化转化团队 |
| 作者单位 | 1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, 189 Songling Rd, Qingdao, Shandong, Peoples R China 2.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Xueyuan,Zhang, Chuanhui,Xu, Chen,et al. Kinetics study for the oxidative dehydrogenation of ethyl lactate to ethyl pyruvate over MoVNbOx based catalysts[J]. CHEMICAL ENGINEERING JOURNAL,2016,296:217-224. |
| APA | Zhao, Xueyuan.,Zhang, Chuanhui.,Xu, Chen.,Li, Hong.,Huang, He.,...&Li, Xuebing.(2016).Kinetics study for the oxidative dehydrogenation of ethyl lactate to ethyl pyruvate over MoVNbOx based catalysts.CHEMICAL ENGINEERING JOURNAL,296,217-224. |
| MLA | Zhao, Xueyuan,et al."Kinetics study for the oxidative dehydrogenation of ethyl lactate to ethyl pyruvate over MoVNbOx based catalysts".CHEMICAL ENGINEERING JOURNAL 296(2016):217-224. |
入库方式： OAI收割
来源：青岛生物能源与过程研究所
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