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题名: Effect of alkali promoters on catalytic performance of MnOx/ZrO2 for synthesis of methanol and isobutanol from syngas
作者: He, DP;  Ding, YJ;  Yin, HM;  Wang, T;  Zhu, HJ
关键词: manganese oxide ;  zirconia ;  alkali promoter ;  carbon monoxide ;  hydrogenation ;  isobutanol ;  methanol
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2003-02-01
卷: 24, 期:2, 页:111-114
收录类别: SCI
文章类型: Article
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
英文摘要: The influence of alkali promoters on the catalytic performance of MnOx/ZrO2 for the selective synthesis of methanol and isobutanol from syngas was studied. The crystal structure, BET specific surface area and acidic properties of catalyst samples were measured by XRD, N-2 adsorption and NH3-TPD. It was found that the addition of alkali promoters had an obvious influence on the performance of MnOx/ZrO2 catalyst. The selectivity for isobutanol increased in the order of Na < Li < Rb < Cs < K, which indicated that the moderately basic additives were desired for the formation of isobutanol on MnOx/ZrO2 catalyst. The selectivity for isobutanol was strongly dependent on the anions of the potassium salts, increasing in the order of OH- < C2O42- < NO3- < CO32-, which revealed that a moderate alkali promotion was required. The catalyst of 1% K/MnOx/ZrO2 (K2CO3 as precursor) showed higher activity and selectivity for isobutanol under the conditions of 10 000 h(-1), 8.0 MPa and 673 K. The selectivity for alcohols and isobutanol was 74.8% and 16.3%, respectively. The results of characterization suggested that the acidic or basic property on the catalyst surface may play an important role in the formation of isobutanol.
关键词[WOS]: ALCOHOL SYNTHESIS ;  SYNTHESIS GAS ;  ZIRCONIUM
语种: 英语
WOS记录号: WOS:000181567900009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139250
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Nat Gas Utilizat & Appl Catalysis Lab, Dalian 116023, Liaoning, Peoples R China

Recommended Citation:
He, DP,Ding, YJ,Yin, HM,et al. Effect of alkali promoters on catalytic performance of MnOx/ZrO2 for synthesis of methanol and isobutanol from syngas[J]. CHINESE JOURNAL OF CATALYSIS,2003,24(2):111-114.
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