Synthesis of methanol and isobutanol by CO hydrogenation over Pd-modified K/MnOx-ZrO2 catalysts
文献类型：期刊论文
| 作者 | He, DP; Ding, YJ |
| 刊名 | chinese journal of catalysis
 |
| 出版日期 | 2005-11-01 |
| 卷号 | 26期号:11页码:961-964 |
| 关键词 | palladium manganese oxide zirconia carbon monoxide hydrogenation methanol isobutanol |
| 英文摘要 | the influence of pd on the catalytic performance of k/mnox-zro2 catalyst for synthesis of methanol and isobutanol from syngas (co + h-2) was studied. pd shows excellent promoting effects on k/mnox-zro2 and remarkably improves the activity of k/mnox-zro2. under the reaction conditions of sv = 10000 h(-1), p = 8.0 mpa and t = 673 k, the space time yield of alcohols increased greatly from 122.8 to 232.6 g/(kg (.) h) when 1.5 % pd (pd(no3)(2) as precursor) was added into the k/mnox-zro2 catalyst, and the selectivity for isobutanol increased from 15.5% to 21.7%. however, the catalytic activity and selectivity for isobutanol greatly decreased when the pd loading exceeded 1.5 %. the results of h-2 and co chemisorption, ft-ir and tpr indicated that the addition of pd promoted the reduction of mnox in the k/mnox-zro2 catalyst and the formation of oxygen vacancy, which might play a role in isobutanol formation. moreover, the addition of pd changed the adsorption behavior of k/mnox-zro2. the h-2 and co uptakes on the pd-modified k/mnox-zro2 catalyst surface were higher than those on k/mnox-zro2. the higher h-2 and co uptakes would be in favor of enhancement in the synthesis rate of methanol and isobutanol. the uptakes of h-2 and co decreased with pd loading in excess of 1.5 %, so that the space time yield to methanol and isobutanol decreased. |
| 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] | promoter ; rhodium |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000233880100008 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/139713]  |
| 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 | 1.China W Normal Univ, Coll Chem & Chem Engn, Sichuan 637002, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, DP,Ding, YJ. Synthesis of methanol and isobutanol by CO hydrogenation over Pd-modified K/MnOx-ZrO2 catalysts[J]. chinese journal of catalysis,2005,26(11):961-964. |
| APA | He, DP,&Ding, YJ.(2005).Synthesis of methanol and isobutanol by CO hydrogenation over Pd-modified K/MnOx-ZrO2 catalysts.chinese journal of catalysis,26(11),961-964. |
| MLA | He, DP,et al."Synthesis of methanol and isobutanol by CO hydrogenation over Pd-modified K/MnOx-ZrO2 catalysts".chinese journal of catalysis 26.11(2005):961-964. |
入库方式： OAI收割
来源：大连化学物理研究所
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