Kinetic study of iso-octane steam reforming over a nickel-based catalyst

Praharso; A. A. Adesina; D. L. Trimm; N. W. Cant

doi:10.1016/j.cej.2003.10.002

Kinetic study of iso-octane steam reforming over a nickel-based catalyst

Praharso, A. A. Adesina, D. L. Trimm^*, N. W. Cant

^*Corresponding author for this work

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

36 Citations (Scopus)

Abstract

The kinetics of iso-octane steam reforming over a nickel based catalyst has been examined as a function of iso-octane and steam partial pressures at various temperatures. The reaction order is 0.2 with respect to iso-octane, suggesting strong coverage of nickel by iso-octane and 0.5 with respect to steam, indicating dissociative adsorption of steam. Indeed, a Langmuir-Hinshelwood (LH) mechanism requiring the dissociative adsorption of iso-octane and steam on two different sites appeared to be the most plausible pathway for the steam reforming reaction. The activation energy of 44 ± 2.2 kJ mol^-1 estimated from the LH model is consistent with the trend previously reported for other lower hydrocarbons.

Original language	English
Pages (from-to)	131-136
Number of pages	6
Journal	Chemical Engineering Journal
Volume	99
Issue number	2
DOIs	https://doi.org/10.1016/j.cej.2003.10.002
Publication status	Published - 15 Jun 2004

Keywords

Gasoline
Iso-Octane
Kinetic
Nickel
Steam reforming

Access to Document

10.1016/j.cej.2003.10.002

Cite this

@article{1569ce5f9f3940bba117b875e67929d7,

title = "Kinetic study of iso-octane steam reforming over a nickel-based catalyst",

abstract = "The kinetics of iso-octane steam reforming over a nickel based catalyst has been examined as a function of iso-octane and steam partial pressures at various temperatures. The reaction order is 0.2 with respect to iso-octane, suggesting strong coverage of nickel by iso-octane and 0.5 with respect to steam, indicating dissociative adsorption of steam. Indeed, a Langmuir-Hinshelwood (LH) mechanism requiring the dissociative adsorption of iso-octane and steam on two different sites appeared to be the most plausible pathway for the steam reforming reaction. The activation energy of 44 ± 2.2 kJ mol-1 estimated from the LH model is consistent with the trend previously reported for other lower hydrocarbons.",

keywords = "Gasoline, Iso-Octane, Kinetic, Nickel, Steam reforming",

author = "Praharso and Adesina, {A. A.} and Trimm, {D. L.} and Cant, {N. W.}",

year = "2004",

month = jun,

day = "15",

doi = "10.1016/j.cej.2003.10.002",

language = "English",

volume = "99",

pages = "131--136",

journal = "Chemical Engineering Journal",

issn = "1385-8947",

publisher = "Elsevier",

number = "2",

}

TY - JOUR

T1 - Kinetic study of iso-octane steam reforming over a nickel-based catalyst

AU - Praharso,

AU - Adesina, A. A.

AU - Trimm, D. L.

AU - Cant, N. W.

PY - 2004/6/15

Y1 - 2004/6/15

N2 - The kinetics of iso-octane steam reforming over a nickel based catalyst has been examined as a function of iso-octane and steam partial pressures at various temperatures. The reaction order is 0.2 with respect to iso-octane, suggesting strong coverage of nickel by iso-octane and 0.5 with respect to steam, indicating dissociative adsorption of steam. Indeed, a Langmuir-Hinshelwood (LH) mechanism requiring the dissociative adsorption of iso-octane and steam on two different sites appeared to be the most plausible pathway for the steam reforming reaction. The activation energy of 44 ± 2.2 kJ mol-1 estimated from the LH model is consistent with the trend previously reported for other lower hydrocarbons.

AB - The kinetics of iso-octane steam reforming over a nickel based catalyst has been examined as a function of iso-octane and steam partial pressures at various temperatures. The reaction order is 0.2 with respect to iso-octane, suggesting strong coverage of nickel by iso-octane and 0.5 with respect to steam, indicating dissociative adsorption of steam. Indeed, a Langmuir-Hinshelwood (LH) mechanism requiring the dissociative adsorption of iso-octane and steam on two different sites appeared to be the most plausible pathway for the steam reforming reaction. The activation energy of 44 ± 2.2 kJ mol-1 estimated from the LH model is consistent with the trend previously reported for other lower hydrocarbons.

KW - Gasoline

KW - Iso-Octane

KW - Kinetic

KW - Nickel

KW - Steam reforming

UR - http://www.scopus.com/inward/record.url?scp=2142650187&partnerID=8YFLogxK

U2 - 10.1016/j.cej.2003.10.002

DO - 10.1016/j.cej.2003.10.002

M3 - Article

AN - SCOPUS:2142650187

VL - 99

SP - 131

EP - 136

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

SN - 1385-8947

IS - 2

ER -

Kinetic study of iso-octane steam reforming over a nickel-based catalyst

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this