Selective hydrogenolysis of biomass-derived xylitol to ethylene glycol and propylene glycol on Ni/C and basic oxide-promoted Ni/C catalysts
文献类型：期刊论文
| 作者 | Sun, Jiying; Liu, Haichao |
| 刊名 | CATALYSIS TODAY
 |
| 出版日期 | 2014-10-01 |
| 卷号 | 234页码:75-82 |
| 关键词 | Selective Hydrogenolysis Ni Catalyst Solid Base Polyols Propylene Glycol Ethylene Glycol |
| ISSN号 | 0920-5861 |
| DOI | 10.1016/j.cattod.2013.12.040 |
| 英文摘要 | The selective hydrogenolysis of xylitol to ethylene glycol and propylene glycol was examined on Ni/C catalysts in the presence of solid bases, e.g. Ca(OH)(2) and CeO2, physically mixed with or co-supported with Ni on C. Compared with Ru/C, the Ni/C catalysts were more selective to the two target glycols under identical conditions, apparently as a result of their lower hydrogenation activity and consequently favored the C C cleavage of xylose intermediate by the base catalyst over its competitive hydrogenation on the Ni particles. Noticeably, the presence of the solid bases rendered the Ni particles resistant to leaching and sintering, and thus stable in the xylitol hydrogenolysis. Supporting the solid bases, especially CeO2 and CaO, with the Ni particles on C led not only to a reduction in the amount of solid bases required, but also efficient formation of the two glycols with negligible lactic acid. For instance, on Ni-CaO/C (at a CaO/Ni molar ratio of 0.66), the combined selectivity to ethylene glycol and propylene glycol, together with glycerol, reached 69.5% at nearly 100% xylitol conversion at 473 K, 4.0 MPa H-2. These features of the basic oxide-promoted Ni catalysts show their promising advantages over the noble Ru catalysts, upon optimization of their compositions and structures, and the reaction parameters, for the efficient hydrogenolysis of xylitol and other lignocellulose-derived polyols to produce the two target glycols. (C) 2014 Elsevier BM. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000339132900009 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/50443]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Liu, Haichao |
| 作者单位 | Peking Univ, Coll Chem & Mol Engn, State Key Lab Struct Chem Stable & Unstable Speci, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Jiying,Liu, Haichao. Selective hydrogenolysis of biomass-derived xylitol to ethylene glycol and propylene glycol on Ni/C and basic oxide-promoted Ni/C catalysts[J]. CATALYSIS TODAY,2014,234:75-82. |
| APA | Sun, Jiying,&Liu, Haichao.(2014).Selective hydrogenolysis of biomass-derived xylitol to ethylene glycol and propylene glycol on Ni/C and basic oxide-promoted Ni/C catalysts.CATALYSIS TODAY,234,75-82. |
| MLA | Sun, Jiying,et al."Selective hydrogenolysis of biomass-derived xylitol to ethylene glycol and propylene glycol on Ni/C and basic oxide-promoted Ni/C catalysts".CATALYSIS TODAY 234(2014):75-82. |
入库方式： OAI收割
来源：化学研究所
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