Promotion effects of Ce added Fe-Zr-K on CO2 hydrogenation to light olefins

被引：33

作者：

Zhang, Jianli ^{[1
]}

Su, Xiaojuan ^{[1
]}

Wang, Xu ^{[1
]}

Ma, Qingxiang ^{[1
]}

Fan, Subing ^{[1
]}

Zhao, Tian-Sheng ^{[1
]}

机构：

[1] Ningxia Univ, State Key Lab High Efficiency Utilizat Coal & Gre, Yinchuan 750021, Peoples R China

来源：

REACTION KINETICS MECHANISMS AND CATALYSIS | 2018年 / 124卷 / 02期

关键词：

Fe-Zr-K catalysts; Ce addition; Bifunction; CO2; hydrogenation; Light olefins; FISCHER-TROPSCH SYNTHESIS; HIGH-SURFACE-AREA; WATER-GAS SHIFT; CARBON-DIOXIDE; REDUCTION BEHAVIOR; IRON; CATALYSTS; SELECTIVITY; METHANOL; CERIUM;

D O I：

10.1007/s11144-018-1377-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Microspherical and uniform Fe-Zr-Ce-K catalysts were prepared by the microwave assisted precipitation followed by impregnation and promoted CO2 hydrogenation toward advantageous synthesis of light olefins. The reducibility, surface basicity and surface atom composition of the catalysts was tuned as the Ce content was varied. The ceria spacer restrained the growth of the Fe2O3 crystallite. Ce addition weakened the interaction between Fe species and zirconia and the reduction of the Fe species became easier. On 35Fe-7Zr-1Ce-K at 320 A degrees C and 2 MPa, the conversion of CO2 and the selectivity of C-2-C-4 olefins were 57.34 and 55.67%, respectively. The ratio of olefin/paraffin was 7. The selectivity of CO and C-5 (+) hydrocarbons were 3 and 15.87%, respectively. The enhanced performance is attributed to intensified bifunctional activity toward CO hydrogenation as well as the reverse water-gas shift reaction.

引用

页码：575 / 585

页数：11

共 40 条

[1] Effect of Mn loading onto MnFeO nanocomposites for the CO2 hydrogenation reaction [J].

Al-Dossary, M. ;

Ismail, Adel A. ;

Fierro, J. L. G. ;

Bouzid, Houcine ;

Al-Sayari, S. A. .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2015, 165 :651-660

[2] Homogeneous precipitation synthesis of CuO-ZrO2-CeO2-Al2O3 nanocatalyst used in hydrogen production via methanol steam reforming for fuel cell applications [J].

Baneshi, Javad ;

Haghighi, Mohammad ;

Jodeiri, Naeimeh ;

Abdollahifar, Mozaffar ;

Ajamein, Hossein .

ENERGY CONVERSION AND MANAGEMENT, 2014, 87 :928-937

[3] CO2 hydrogenation to methanol over CuZnGa catalysts prepared using microwave-assisted methods [J].

Cai, Weijie ;

Ramirez de la Piscina, Pilar ;

Toyir, Jamil ;

Homs, Narcis .

CATALYSIS TODAY, 2015, 242 :193-199

[4] Hydrogenation of carbon dioxide over alumina supported Fe-K catalysts [J].

Choi, PH ;

Jun, KW ;

Lee, SJ ;

Choi, MJ ;

Lee, KW .

CATALYSIS LETTERS, 1996, 40 (1-2) :115-118

[5] Synthesis of thermally stable, high surface area, nanocrystalline mesoporous tetragonal zirconium dioxide (ZrO2): Effects of different process parameters [J].

Deshmane, Vishwanath G. ;

Adewuyi, Yusuf G. .

MICROPOROUS AND MESOPOROUS MATERIALS, 2012, 148 (01) :88-100

[6] C2-C5+ olefin production from CO2 hydrogenation using ceria modified Fe/Mn/K catalysts [J].

Dorner, Robert W. ;

Hardy, Dennis R. ;

Williams, Frederick W. ;

Willauer, Heather D. .

CATALYSIS COMMUNICATIONS, 2011, 15 (01) :88-92

[7] Effects of ceria-doping on a CO2 hydrogenation iron-manganese catalyst [J].

Dorner, Robert W. ;

Hardy, Dennis R. ;

Williams, Frederick W. ;

Willauer, Heather D. .

CATALYSIS COMMUNICATIONS, 2010, 11 (09) :816-819

[8] HEATS OF CHEMISORPTION ON PROMOTED IRON SURFACES AND ROLE OF ALKALI IN FISCHER-TROPSCH SYNTHESIS [J].

DRY, ME ;

SHINGLES, T ;

BOSHOFF, LJ ;

OOSTHUIZ.GJ .

JOURNAL OF CATALYSIS, 1969, 15 (02) :190-&

[9]

Gao P, 2017, NAT CHEM, V9, P1019, DOI [10.1038/NCHEM.2794, 10.1038/nchem.2794]

[10] REDUCTION OF SUPPORTED IRON-OXIDE STUDIED BY TEMPERATURE-PROGRAMMED REDUCTION COMBINED WITH MOSSBAUER-SPECTROSCOPY AND X-RAY-DIFFRACTION [J].

GAO, XT ;

SHEN, JY ;

HSIA, YF ;

CHEN, Y .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1993, 89 (07) :1079-1084

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