Ni/ZrO2 catalysts in ethanol steam reforming: Inhibition of coke formation by CaO-doping

被引：111

作者：

Nichele, Valentina ^{[1
]}

Signoretto, Michela ^{[1
]}

Pinna, Francesco ^{[1
]}

Menegazzo, Federica ^{[1
]}

Rossetti, Ilenia ^{[2
]}

Cruciani, Giuseppe ^{[3
]}

Cerrato, Giuseppina ^{[4
,5
]}

Di Michele, Alessandro ^{[6
]}

机构：

[1] Ca Foscari Univ, Mol Sci & Nanosyst Dept, INSTM Unit, I-30123 Venice, Italy

[2] Univ Milan, Dept Chem, ISTM CNR, INSTM Unit, I-20133 Milan, Italy

[3] Univ Ferrara, Dept Earth Sci, I-44100 Ferrara, Italy

[4] Univ Turin, Dept Chem, INSTM Unit, I-10125 Turin, Italy

[5] Univ Turin, NIS Ctr Excellence, INSTM Unit, I-10125 Turin, Italy

[6] Univ Perugia, Dept Phys, I-06123 Perugia, Italy

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2014年 / 150卷

关键词：

Nickel; Zirconia; Ethanol steam reforming; CaO-doping; Coking inhibition; NI CRYSTAL SIZE; HYDROGEN-PRODUCTION; PARTIAL OXIDATION; ZRO2; SUPPORT; METHANE; ZIRCONIA; SURFACE; CH4; ADSORPTION; MORPHOLOGY;

D O I：

10.1016/j.apcatb.2013.11.037

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：

In this work the performance of CaO-doped Ni/ZrO2 catalysts in ethanol steam reforming was studied. The addition of CaO did not affect the morphology or the crystalline structure of the support. On the contrary, Ni reducibility markedly increased. Moreover, the Lewis acidity of zirconia gradually decreased as the CaO content increased, thus inhibiting coke deposition and improving the carbon balance. The addition of a basic oxide helps to prevent some of the side reactions responsible for coke formation and deposition, that can gradually deactivate the catalyst. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：12 / 20

页数：9

共 52 条

[1] Combination of dry reforming and partial oxidation of methane on NiO-MgO-ZrO2 catalyst: Effect of nickel content [J].

Asencios, Yvan J. O. ;

Assaf, Elisabete M. .

FUEL PROCESSING TECHNOLOGY, 2013, 106 :247-252

[2] Synthesis of NiO-MgO-ZrO2 catalysts and their performance in reforming of model biogas [J].

Asencios, Yvan J. O. ;

Bellido, Jorge D. A. ;

Assaf, Elisabete M. .

APPLIED CATALYSIS A-GENERAL, 2011, 397 (1-2) :138-144

[3] Bifunctional catalysts for single-stage water-gas shift reaction in fuel cell applications. Part 1. Effect of the support on the reaction sequence [J].

Azzam, K. G. ;

Babich, I. V. ;

Seshan, K. ;

Lefferts, L. .

JOURNAL OF CATALYSIS, 2007, 251 (01) :153-162

[4] THE DETERMINATION OF PORE VOLUME AND AREA DISTRIBUTIONS IN POROUS SUBSTANCES .1. COMPUTATIONS FROM NITROGEN ISOTHERMS [J].

BARRETT, EP ;

JOYNER, LG ;

HALENDA, PP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1951, 73 (01) :373-380

[5] Nickel catalysts supported on ZrO2, Y2O3-stabilized ZrO2 and CaO-stabilized ZrO2 for the steam reforming of ethanol:: Effect of the support and nickel load [J].

Bellido, J. D. A. ;

Assaf, E. M. .

JOURNAL OF POWER SOURCES, 2008, 177 (01) :24-32

[6] Effect of adding CaO to ZrO2 support on nickel catalyst activity in dry reforming of methane [J].

Bellido, Jorge D. A. ;

De Souza, Jose E. ;

M'Peko, Jean-Claude ;

Assaf, Elisabete M. .

APPLIED CATALYSIS A-GENERAL, 2009, 358 (02) :215-223

[7] Bio-ethanol steam reforming: Insights on the mechanism for hydrogen production [J].

Benito, M ;

Sanz, JL ;

Isabel, R ;

Padilla, R ;

Arjona, R ;

Daza, L .

JOURNAL OF POWER SOURCES, 2005, 151 :11-17

[8] The role of surface reactions on the active and selective catalyst design for bioethanol steam reforming [J].

Benito, M. ;

Padilla, R. ;

Serrano-Lotina, A. ;

Rodriguez, L. ;

Brey, J. J. ;

Daza, L. .

JOURNAL OF POWER SOURCES, 2009, 192 (01) :158-164

[9] Ethanol steam reforming over Rh/CexZr1-xO2 catalysts:: Impact of the CO-CO2-CH4 interconversion reactions on the H2 production [J].

Birot, Anne ;

Epron, Florence ;

Descorme, Claude ;

Duprez, Daniel .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2008, 79 (1-2) :17-25

[10] Adsorption of gases in multimolecular layers [J].

Brunauer, S ;

Emmett, PH ;

Teller, E .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1938, 60 :309-319

← 1 2 3 4 5 6 →