Synthesis of diethyl carbonate from urea and ethanol over lanthanum oxide as a heterogeneous basic catalyst
文献类型：期刊论文
| 作者 | Xin, Shumin2,3; Wang, Liguo2; Li, Huiquan2; Huang, Kelin3; Li, Fengjiao2 |
| 刊名 | FUEL PROCESSING TECHNOLOGY
 |
| 出版日期 | 2014-10-01 |
| 卷号 | 126期号:OCT页码:453-459 |
| 关键词 | Urea Diethyl carbonate Lanthanum oxide Regeneration |
| ISSN号 | 0378-3820 |
| 其他题名 | Fuel Process. Technol. |
| 中文摘要 | The catalytic synthesis of diethyl carbonate from urea and ethanol was investigated over various metal oxide catalysts. Among them, the lanthanum oxide prepared by precipitation method exhibited much higher catalytic activity. In particular, 38.6% of DEC yield could be achieved at the reaction conditions of ethanol/urea molar ratio of 10, reaction temperature of 210 degrees C within 3 h over La2O3-500. The catalyst structures and surface properties were studied by N-2 adsorption, XRD, FT-IR and CO2-TPD. On the basis of these results, it can be inferred that the high catalytic activity could be attributed to the abundant medium basicity of lanthanum oxide. Importantly, as confirmed by ICP-OES test, there was no obvious leaching of La into the resulting mixture. This phenomenon indicated that La2O3-500 was very stable during the reaction and behaved as a heterogeneous basic catalyst. In addition, the facile calcination of the used catalyst could provide an efficient way to regenerate the catalytic activity. (C) 2014 Elsevier B.V. All rights reserved. |
| 英文摘要 | The catalytic synthesis of diethyl carbonate from urea and ethanol was investigated over various metal oxide catalysts. Among them, the lanthanum oxide prepared by precipitation method exhibited much higher catalytic activity. In particular, 38.6% of DEC yield could be achieved at the reaction conditions of ethanol/urea molar ratio of 10, reaction temperature of 210 degrees C within 3 h over La2O3-500. The catalyst structures and surface properties were studied by N-2 adsorption, XRD, FT-IR and CO2-TPD. On the basis of these results, it can be inferred that the high catalytic activity could be attributed to the abundant medium basicity of lanthanum oxide. Importantly, as confirmed by ICP-OES test, there was no obvious leaching of La into the resulting mixture. This phenomenon indicated that La2O3-500 was very stable during the reaction and behaved as a heterogeneous basic catalyst. In addition, the facile calcination of the used catalyst could provide an efficient way to regenerate the catalytic activity. (C) 2014 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Applied ; Energy & Fuels ; Engineering, Chemical |
| 研究领域[WOS] | Chemistry ; Energy & Fuels ; Engineering |
| 关键词[WOS] | EFFICIENT SYNTHESIS ; DIMETHYL CARBONATE ; PERFORMANCE ; HYDRATION ; MONOXIDE ; METHANOL ; LA2O3 |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000340329600051 |
| 公开日期 | 2014-09-30 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/11569]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc & Engn, Natl Engn Lab Hydrometallurg Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Proc & Engn, Beijing 100190, Peoples R China 3.Guangxi Univ Nationalities, Guangxi 530006, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xin, Shumin,Wang, Liguo,Li, Huiquan,et al. Synthesis of diethyl carbonate from urea and ethanol over lanthanum oxide as a heterogeneous basic catalyst[J]. FUEL PROCESSING TECHNOLOGY,2014,126(OCT):453-459. |
| APA | Xin, Shumin,Wang, Liguo,Li, Huiquan,Huang, Kelin,&Li, Fengjiao.(2014).Synthesis of diethyl carbonate from urea and ethanol over lanthanum oxide as a heterogeneous basic catalyst.FUEL PROCESSING TECHNOLOGY,126(OCT),453-459. |
| MLA | Xin, Shumin,et al."Synthesis of diethyl carbonate from urea and ethanol over lanthanum oxide as a heterogeneous basic catalyst".FUEL PROCESSING TECHNOLOGY 126.OCT(2014):453-459. |
入库方式： OAI收割
来源：过程工程研究所
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