Fluidizable Ni/Ce-meso-Al2O3 for gasification of glucose: Effect of catalyst reduction on hydrogen selectivity

Sagir Adamu; Shaikh A. Razzak; Mohammad M. Hossain

doi:10.1016/j.jiec.2018.04.008

Fluidizable Ni/Ce-meso-Al₂O₃ for gasification of glucose: Effect of catalyst reduction on hydrogen selectivity

Sagir Adamu, Shaikh A. Razzak, Mohammad M. Hossain^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

A new template-free technique is applied to develop fluidizable Ce-Al₂O₃ support and impregnated with nickel. The Ni(x)/Ce-Al₂O₃ catalysts are evaluated in a fluidized CREC Riser Simulator using glucose as biomass surrogate. XRD shows that nickel is well-dispersed on Ce-Al₂O₃. The acidity of the catalysts decreased from 0.317 to 0.202 mmol NH₃/g-sample as the nickel loading was increased. In catalyst evaluation, it is found that the reduced catalysts favor bond cleavage, promotes water gas shift and steam reforming reactions to give hydrogen/syngas as more selective products. Ni(20)/Ce-Al₂O₃ exhibited lowest extent of coking and produced hydrogen rich syngas with H₂/CO ≈ 1.75:1.

Original language	English
Pages (from-to)	467-477
Number of pages	11
Journal	Journal of Industrial and Engineering Chemistry
Volume	64
DOIs	https://doi.org/10.1016/j.jiec.2018.04.008
State	Published - 25 Aug 2018

Bibliographical note

Publisher Copyright:
© 2018 The Korean Society of Industrial and Engineering Chemistry

Keywords

Catalyst recyclability
Catalyst regeneration
Ceria-doped alumina
Hydrogen selectivity
Syngas composition
Thermal stability

ASJC Scopus subject areas

General Chemical Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.jiec.2018.04.008

Cite this

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title = "Fluidizable Ni/Ce-meso-Al2O3 for gasification of glucose: Effect of catalyst reduction on hydrogen selectivity",

abstract = "A new template-free technique is applied to develop fluidizable Ce-Al2O3 support and impregnated with nickel. The Ni(x)/Ce-Al2O3 catalysts are evaluated in a fluidized CREC Riser Simulator using glucose as biomass surrogate. XRD shows that nickel is well-dispersed on Ce-Al2O3. The acidity of the catalysts decreased from 0.317 to 0.202 mmol NH3/g-sample as the nickel loading was increased. In catalyst evaluation, it is found that the reduced catalysts favor bond cleavage, promotes water gas shift and steam reforming reactions to give hydrogen/syngas as more selective products. Ni(20)/Ce-Al2O3 exhibited lowest extent of coking and produced hydrogen rich syngas with H2/CO ≈ 1.75:1.",

keywords = "Catalyst recyclability, Catalyst regeneration, Ceria-doped alumina, Hydrogen selectivity, Syngas composition, Thermal stability",

author = "Sagir Adamu and Razzak, \{Shaikh A.\} and Hossain, \{Mohammad M.\}",

note = "Publisher Copyright: {\textcopyright} 2018 The Korean Society of Industrial and Engineering Chemistry",

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T1 - Fluidizable Ni/Ce-meso-Al2O3 for gasification of glucose

T2 - Effect of catalyst reduction on hydrogen selectivity

AU - Adamu, Sagir

AU - Razzak, Shaikh A.

AU - Hossain, Mohammad M.

PY - 2018/8/25

Y1 - 2018/8/25

N2 - A new template-free technique is applied to develop fluidizable Ce-Al2O3 support and impregnated with nickel. The Ni(x)/Ce-Al2O3 catalysts are evaluated in a fluidized CREC Riser Simulator using glucose as biomass surrogate. XRD shows that nickel is well-dispersed on Ce-Al2O3. The acidity of the catalysts decreased from 0.317 to 0.202 mmol NH3/g-sample as the nickel loading was increased. In catalyst evaluation, it is found that the reduced catalysts favor bond cleavage, promotes water gas shift and steam reforming reactions to give hydrogen/syngas as more selective products. Ni(20)/Ce-Al2O3 exhibited lowest extent of coking and produced hydrogen rich syngas with H2/CO ≈ 1.75:1.

AB - A new template-free technique is applied to develop fluidizable Ce-Al2O3 support and impregnated with nickel. The Ni(x)/Ce-Al2O3 catalysts are evaluated in a fluidized CREC Riser Simulator using glucose as biomass surrogate. XRD shows that nickel is well-dispersed on Ce-Al2O3. The acidity of the catalysts decreased from 0.317 to 0.202 mmol NH3/g-sample as the nickel loading was increased. In catalyst evaluation, it is found that the reduced catalysts favor bond cleavage, promotes water gas shift and steam reforming reactions to give hydrogen/syngas as more selective products. Ni(20)/Ce-Al2O3 exhibited lowest extent of coking and produced hydrogen rich syngas with H2/CO ≈ 1.75:1.

KW - Catalyst recyclability

KW - Catalyst regeneration

KW - Ceria-doped alumina

KW - Hydrogen selectivity

KW - Syngas composition

KW - Thermal stability

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