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Enhanced catalytic performance for direct synthesis of dimethyl ether from syngas over a La2O3 modified Cu-ZrO2/gamma-Al2O3 hybrid catalyst
Li, Zhuo1,2; Li, Jianqing1; Yang, Cheng1; Wu, Jinhu1
2012-05-01
发表期刊JOURNAL OF NATURAL GAS CHEMISTRY
卷号21期号:3页码:360-365
摘要A series of hybrid catalysts were made by physically mixing Cu-ZrO2 and gamma-Al2O3, for former it was modified with different loadings of La2O3 prepared by co-precipitation method. The catalysts were characterized by BET, XRD, N2O-adsorption, EXAFS, H-2-TPR, NH3-TPD techniques and evaluated in the synthesis of dimethyl ether from syngas. The results show that La2O3 promoted catalysts displayed a significantly better catalytic performance compared with Cu-ZrO2/gamma-Al2O3 catalyst in CO conversion and DME selectivity, and the optimum catalytic activity was obtained when the content of La2O3 was 12 wt%. The characterizations reveal that high copper dispersion, facile reducibility of copper particles and appropriate amount of acidic sites are responsible for the superior catalytic performance.
文章类型Article
关键词Dimethyl Ether Syngas Hybrid Catalyst Cu-zro2 La2o3
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/S1003-9953(11)60377-0
关键词[WOS]METHANOL SYNTHESIS ; CUO-ZNO-AL2O3/GAMMA-AL2O3 CATALYST ; BIFUNCTIONAL CATALYST ; CO HYDROGENATION ; CARBON-DIOXIDE ; ZIRCONIA ; OXIDE ; DME ; COPPER/ZIRCONIA ; DEACTIVATION
收录类别SCI
语种英语
WOS研究方向Chemistry ; Energy & Fuels ; Engineering
WOS类目Chemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical
WOS记录号WOS:000305776100022
引用统计
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/6385
专题热化学转化研究组
作者单位1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Qingdao 266101, Shandong, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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Li, Zhuo,Li, Jianqing,Yang, Cheng,et al. Enhanced catalytic performance for direct synthesis of dimethyl ether from syngas over a La2O3 modified Cu-ZrO2/gamma-Al2O3 hybrid catalyst[J]. JOURNAL OF NATURAL GAS CHEMISTRY,2012,21(3):360-365.
APA Li, Zhuo,Li, Jianqing,Yang, Cheng,&Wu, Jinhu.(2012).Enhanced catalytic performance for direct synthesis of dimethyl ether from syngas over a La2O3 modified Cu-ZrO2/gamma-Al2O3 hybrid catalyst.JOURNAL OF NATURAL GAS CHEMISTRY,21(3),360-365.
MLA Li, Zhuo,et al."Enhanced catalytic performance for direct synthesis of dimethyl ether from syngas over a La2O3 modified Cu-ZrO2/gamma-Al2O3 hybrid catalyst".JOURNAL OF NATURAL GAS CHEMISTRY 21.3(2012):360-365.
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