Performance characteristics of Mo-Ni/Al2O3 catalysts in LPG oxidative steam reforming for hydrogen production

Zuhair O. Malaibari; Ashraf Amin; Eric Croiset; William Epling

doi:10.1016/j.ijhydene.2014.03.169

Performance characteristics of Mo-Ni/Al₂O₃ catalysts in LPG oxidative steam reforming for hydrogen production

Zuhair O. Malaibari, Ashraf Amin, Eric Croiset^*, William Epling

^*Corresponding author for this work

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

38 Scopus citations

Abstract

A 1:1 propane-butane mixture was used to study the effect of promoting 15 wt.% Ni/Al₂O₃ (15Ni) catalyst with small amounts of Mo (0.05, 0.1, 0.3, and 0.5 wt.%) for H₂ production during LPG oxidative steam reforming. Stability tests at 450 °C showed that lower Mo loadings (0.1 and 0.05 wt.%) had higher conversions and H₂ production rates than the non-promoted catalyst and a stable performance for the whole 18-h test period. TPO results showed that slightly more Ni sites were available for whisker formation over the Mo catalyst with 0.1 wt.% loading, the types of carbon resulting from cracking were the same on both promoted and non-promoted catalysts. Higher Mo loaded catalysts (0.3 and 0.5 wt.%) showed higher H ₂ yields than the non-promoted catalysts, but lower feed-fuel conversions. XRD revealed that the loss in activity was due to oxidation of active Ni species to inactive Ni and Ni-Mo.

Original language	English
Pages (from-to)	10061-10073
Number of pages	13
Journal	International Journal of Hydrogen Energy
Volume	39
Issue number	19
DOIs	https://doi.org/10.1016/j.ijhydene.2014.03.169
State	Published - 24 Jun 2014

Bibliographical note

Funding Information:
The work of Zuhair Malaibari was supported by a scholarship from King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Saudi Arabia. Support from the Natural Sciences and Engineering Research Council of Canada is also gratefully acknowledged.

Keywords

Butane
Hydrogen production
Molybdenum
Nickel
Oxidative steam reforming
Propane

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

UN SDGs

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

Access to Document

10.1016/j.ijhydene.2014.03.169

Cite this

@article{9bc3d1f59d5d4b69b84255e9cf1efb2f,

title = "Performance characteristics of Mo-Ni/Al2O3 catalysts in LPG oxidative steam reforming for hydrogen production",

abstract = "A 1:1 propane-butane mixture was used to study the effect of promoting 15 wt.\% Ni/Al2O3 (15Ni) catalyst with small amounts of Mo (0.05, 0.1, 0.3, and 0.5 wt.\%) for H2 production during LPG oxidative steam reforming. Stability tests at 450 °C showed that lower Mo loadings (0.1 and 0.05 wt.\%) had higher conversions and H2 production rates than the non-promoted catalyst and a stable performance for the whole 18-h test period. TPO results showed that slightly more Ni sites were available for whisker formation over the Mo catalyst with 0.1 wt.\% loading, the types of carbon resulting from cracking were the same on both promoted and non-promoted catalysts. Higher Mo loaded catalysts (0.3 and 0.5 wt.\%) showed higher H 2 yields than the non-promoted catalysts, but lower feed-fuel conversions. XRD revealed that the loss in activity was due to oxidation of active Ni species to inactive Ni and Ni-Mo.",

keywords = "Butane, Hydrogen production, Molybdenum, Nickel, Oxidative steam reforming, Propane",

author = "Malaibari, \{Zuhair O.\} and Ashraf Amin and Eric Croiset and William Epling",

note = "Funding Information: The work of Zuhair Malaibari was supported by a scholarship from King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Saudi Arabia. Support from the Natural Sciences and Engineering Research Council of Canada is also gratefully acknowledged.",

year = "2014",

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doi = "10.1016/j.ijhydene.2014.03.169",

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AU - Malaibari, Zuhair O.

AU - Amin, Ashraf

AU - Croiset, Eric

AU - Epling, William

N1 - Funding Information: The work of Zuhair Malaibari was supported by a scholarship from King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Saudi Arabia. Support from the Natural Sciences and Engineering Research Council of Canada is also gratefully acknowledged.

PY - 2014/6/24

Y1 - 2014/6/24

N2 - A 1:1 propane-butane mixture was used to study the effect of promoting 15 wt.% Ni/Al2O3 (15Ni) catalyst with small amounts of Mo (0.05, 0.1, 0.3, and 0.5 wt.%) for H2 production during LPG oxidative steam reforming. Stability tests at 450 °C showed that lower Mo loadings (0.1 and 0.05 wt.%) had higher conversions and H2 production rates than the non-promoted catalyst and a stable performance for the whole 18-h test period. TPO results showed that slightly more Ni sites were available for whisker formation over the Mo catalyst with 0.1 wt.% loading, the types of carbon resulting from cracking were the same on both promoted and non-promoted catalysts. Higher Mo loaded catalysts (0.3 and 0.5 wt.%) showed higher H 2 yields than the non-promoted catalysts, but lower feed-fuel conversions. XRD revealed that the loss in activity was due to oxidation of active Ni species to inactive Ni and Ni-Mo.

AB - A 1:1 propane-butane mixture was used to study the effect of promoting 15 wt.% Ni/Al2O3 (15Ni) catalyst with small amounts of Mo (0.05, 0.1, 0.3, and 0.5 wt.%) for H2 production during LPG oxidative steam reforming. Stability tests at 450 °C showed that lower Mo loadings (0.1 and 0.05 wt.%) had higher conversions and H2 production rates than the non-promoted catalyst and a stable performance for the whole 18-h test period. TPO results showed that slightly more Ni sites were available for whisker formation over the Mo catalyst with 0.1 wt.% loading, the types of carbon resulting from cracking were the same on both promoted and non-promoted catalysts. Higher Mo loaded catalysts (0.3 and 0.5 wt.%) showed higher H 2 yields than the non-promoted catalysts, but lower feed-fuel conversions. XRD revealed that the loss in activity was due to oxidation of active Ni species to inactive Ni and Ni-Mo.

KW - Butane

KW - Hydrogen production

KW - Molybdenum

KW - Nickel

KW - Oxidative steam reforming

KW - Propane

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