Hydrogen production by methanol-steam reforming using Ni-Mo-Cu/γ- alumina trimetallic catalysts

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Abstract

Recent attention has focused on steam reforming (SR) of methanol to produce high-purity hydrogen for 'clean' energy applications. Methanol (as a hydrogen carrier) is a renewable and easily accessible energy source that can be produced from biomass and natural gas; the advantages are its availability, high energy density, relative low cost, and easy storage and transportation. In the hydrogen production processes, catalysts play a very critical role for increasing the hydrogen yield and purity as well as reducing by-products. In this study, the thermodynamic parameters of the methanol-SR reaction were evaluated. Several Ni-Mo-Cu/γ-alumina trimetallic catalysts with different compositions were prepared by a wet impregnation method. The hydrogen production efficiency of the catalysts was evaluated for the methanol-SR reaction. Thermodynamic studies of the reaction showed that methanol-SR was an exothermic and spontaneous reaction for all catalysts investigated. Thermodynamic considerations revealed that a catalyst with a composition of 7 wt% Cu, 0.2 wt% Mo and 0.2 wt% Ni was the most reactive catalyst with an enthalpy of - 663.102 kcal. Experimental results showed that the optimum reaction occurred at 548 K and pressure of 3 bar. At these conditions, the production of undesirable by-products such as CO and CO2 was negligible.

Original languageEnglish
Pages (from-to)862-868
Number of pages7
JournalAsia-Pacific Journal of Chemical Engineering
Volume5
Issue number6
DOIs
Publication statusPublished - Nov 2010

Fingerprint

Aluminum Oxide
Steam reforming
Hydrogen production
aluminum oxide
Methanol
methanol
Alumina
catalyst
hydrogen
Catalysts
Hydrogen
thermodynamics
Thermodynamics
Reforming reactions
Byproducts
Carbon Monoxide
Chemical analysis
enthalpy
Impregnation
energy

Keywords

  • hydrogen production
  • methanol-steam reforming
  • thermodynamic study
  • trimetallic catalyst

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

Cite this

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title = "Hydrogen production by methanol-steam reforming using Ni-Mo-Cu/γ- alumina trimetallic catalysts",
abstract = "Recent attention has focused on steam reforming (SR) of methanol to produce high-purity hydrogen for 'clean' energy applications. Methanol (as a hydrogen carrier) is a renewable and easily accessible energy source that can be produced from biomass and natural gas; the advantages are its availability, high energy density, relative low cost, and easy storage and transportation. In the hydrogen production processes, catalysts play a very critical role for increasing the hydrogen yield and purity as well as reducing by-products. In this study, the thermodynamic parameters of the methanol-SR reaction were evaluated. Several Ni-Mo-Cu/γ-alumina trimetallic catalysts with different compositions were prepared by a wet impregnation method. The hydrogen production efficiency of the catalysts was evaluated for the methanol-SR reaction. Thermodynamic studies of the reaction showed that methanol-SR was an exothermic and spontaneous reaction for all catalysts investigated. Thermodynamic considerations revealed that a catalyst with a composition of 7 wt{\%} Cu, 0.2 wt{\%} Mo and 0.2 wt{\%} Ni was the most reactive catalyst with an enthalpy of - 663.102 kcal. Experimental results showed that the optimum reaction occurred at 548 K and pressure of 3 bar. At these conditions, the production of undesirable by-products such as CO and CO2 was negligible.",
keywords = "hydrogen production, methanol-steam reforming, thermodynamic study, trimetallic catalyst",
author = "Zahira Yaakob and Kamarudin, {Siti Kartom} and {Wan Daud}, {Wan Ramli} and Yosfiah, {M. R.} and Lim, {Kean Long} and H. Kazemian",
year = "2010",
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T1 - Hydrogen production by methanol-steam reforming using Ni-Mo-Cu/γ- alumina trimetallic catalysts

AU - Yaakob, Zahira

AU - Kamarudin, Siti Kartom

AU - Wan Daud, Wan Ramli

AU - Yosfiah, M. R.

AU - Lim, Kean Long

AU - Kazemian, H.

PY - 2010/11

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