Kinetics of steam reforming of ethanol over a Ru/Al2O3 catalyst

被引：96

作者：

Vaidya, Prakash D. ^{[1
]}

Rodrigues, Alirio E. ^{[1
]}

机构：

[1] Univ Porto, Fac Engn, Dept Chem Engn, Lab Separat & React Engn, P-4200465 Oporto, Portugal

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2006年 / 45卷 / 19期

关键词：

HYDROGEN-PRODUCTION; NI/AL2O3; CATALYST; LOW-TEMPERATURE; FUEL-CELLS;

D O I：

10.1021/ie051342m

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Catalytic steam reforming of ethanol over a Ru/Al2O3 catalyst in the temperature range 873-973 K was studied. The influence of inlet ethanol concentration on ethanol conversion and hydrogen yield was investigated. The conversion vs space time data was subjected to the integral method of analysis. The results show that the reaction order with respect to ethanol is 1. An activation energy of 96 kJ mol(-1) was obtained. A possible reaction sequence for ethanol steam reforming was suggested. A rate expression was derived assuming that the decomposition of an activated complex formed during reaction into intermediate products was the rate-determining step.

引用

页码：6614 / 6618

页数：5

共 9 条

[1] Experimental studies and comprehensive reactor modeling of hydrogen production by the catalytic reforming of crude ethanol in a packed bed tubular reactor over a Ni/Al2O3 catalyst [J].

Aboudheir, A ;

Akande, A ;

Idem, R ;

Dalai, A .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2006, 31 (06) :752-761

[2] Kinetics of steam reforming of methane on Ru/Al2O3 catalyst promoted with Mn oxides [J].

Berman, A ;

Karn, RK ;

Epstein, A .

APPLIED CATALYSIS A-GENERAL, 2005, 282 (1-2) :73-83

[3] Bio-ethanol steam reforming on Ni/Al2O3 catalyst [J].

Comas, J ;

Mariño, F ;

Laborde, M ;

Amadeo, N .

CHEMICAL ENGINEERING JOURNAL, 2004, 98 (1-2) :61-68

[4] Hydrogen production by ethanol reforming over Rh/CeO2-ZrO2 catalysts [J].

Diagne, C ;

Idriss, H ;

Kiennemann, A .

CATALYSIS COMMUNICATIONS, 2002, 3 (12) :565-571

[5] On-board hydrogen production in a hybrid electric vehicle by bio-ethanol oxidative steam reforming over Ni and noble metal based catalysts [J].

Fierro, V ;

Akdim, O ;

Mirodatos, C .

GREEN CHEMISTRY, 2003, 5 (01) :20-24

[6] Production of hydrogen for fuel cells by steam reforming of ethanol over supported noble metal catalysts [J].

Liguras, DK ;

Kondarides, DI ;

Verykios, XE .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2003, 43 (04) :345-354

[7] Low-temperature reforming of ethanol over copper-plated Raney nickel: A new route to sustainable hydrogen for transportation [J].

Morgenstern, DA ;

Fornango, JP .

ENERGY & FUELS, 2005, 19 (04) :1708-1716

[8] H2 from steam reforming of ethanol at low temperature over Ni/Y2O3, Ni/La2O3 and Ni/Al2O3 catalysts for fuel-cell application [J].

Sun, J ;

Qiu, XP ;

Wu, F ;

Zhu, WT .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2005, 30 (04) :437-445

[9] Insight into steam reforming of ethanol to produce hydrogen for fuel cells [J].

Vaidya, PD ;

Rodrigues, AE .

CHEMICAL ENGINEERING JOURNAL, 2006, 117 (01) :39-49

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