Analytical explosion limits of H2/CO/O2 and H2/CH4/O2 mixtures

Wenkai Liang; Chung K. Law

Analytical explosion limits of H₂/CO/O₂ and H₂/CH₄/O₂ mixtures

Research output: Contribution to conference › Paper › peer-review

Abstract

The pressure-temperature explosion limits of H₂/CO/O₂ and H₂/CH₄/O₂ mixtures were analyzed computationally and theoretically. It is shown that, with the addition of even a minute quantity of H₂, the H₂/CO/O₂ mixture explosion limits evolve from being monotonic to the non-monotonic Z-shaped response characteristic of H₂/O₂ mixtures. Eigenvalue analysis of the reaction mechanism leads to an analytic solution for the explosion limits, yielding explicit expressions for them. The separate and coupled roles of H₂ and CO oxidation are identified, leading to enhanced insight of this foundational component in the mechanisms of hydrocarbon oxidation. A similar analysis was also conducted for H₂/CH₄/O₂. yielding useful information for the utilization of syngas.

Original language	English (US)
State	Published - 2017
Event	10th U.S. National Combustion Meeting - College Park, United States Duration: Apr 23 2017 → Apr 26 2017

Other

Other	10th U.S. National Combustion Meeting
Country/Territory	United States
City	College Park
Period	4/23/17 → 4/26/17

All Science Journal Classification (ASJC) codes

General Chemical Engineering
Physical and Theoretical Chemistry
Mechanical Engineering

Keywords

Eigenvalue analysis
Explosion limits
Methane
Syngas

Cite this

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title = "Analytical explosion limits of H2/CO/O2 and H2/CH4/O2 mixtures",

abstract = "The pressure-temperature explosion limits of H2/CO/O2 and H2/CH4/O2 mixtures were analyzed computationally and theoretically. It is shown that, with the addition of even a minute quantity of H2, the H2/CO/O2 mixture explosion limits evolve from being monotonic to the non-monotonic Z-shaped response characteristic of H2/O2 mixtures. Eigenvalue analysis of the reaction mechanism leads to an analytic solution for the explosion limits, yielding explicit expressions for them. The separate and coupled roles of H2 and CO oxidation are identified, leading to enhanced insight of this foundational component in the mechanisms of hydrocarbon oxidation. A similar analysis was also conducted for H2/CH4/O2. yielding useful information for the utilization of syngas.",

keywords = "Eigenvalue analysis, Explosion limits, Methane, Syngas",

author = "Wenkai Liang and Law, {Chung K.}",

note = "Publisher Copyright: {\textcopyright} 2017 Eastern States Section of the Combustion Institute. All rights reserved.; 10th U.S. National Combustion Meeting ; Conference date: 23-04-2017 Through 26-04-2017",

year = "2017",

language = "English (US)",

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TY - CONF

T1 - Analytical explosion limits of H2/CO/O2 and H2/CH4/O2 mixtures

AU - Liang, Wenkai

AU - Law, Chung K.

PY - 2017

Y1 - 2017

N2 - The pressure-temperature explosion limits of H2/CO/O2 and H2/CH4/O2 mixtures were analyzed computationally and theoretically. It is shown that, with the addition of even a minute quantity of H2, the H2/CO/O2 mixture explosion limits evolve from being monotonic to the non-monotonic Z-shaped response characteristic of H2/O2 mixtures. Eigenvalue analysis of the reaction mechanism leads to an analytic solution for the explosion limits, yielding explicit expressions for them. The separate and coupled roles of H2 and CO oxidation are identified, leading to enhanced insight of this foundational component in the mechanisms of hydrocarbon oxidation. A similar analysis was also conducted for H2/CH4/O2. yielding useful information for the utilization of syngas.

AB - The pressure-temperature explosion limits of H2/CO/O2 and H2/CH4/O2 mixtures were analyzed computationally and theoretically. It is shown that, with the addition of even a minute quantity of H2, the H2/CO/O2 mixture explosion limits evolve from being monotonic to the non-monotonic Z-shaped response characteristic of H2/O2 mixtures. Eigenvalue analysis of the reaction mechanism leads to an analytic solution for the explosion limits, yielding explicit expressions for them. The separate and coupled roles of H2 and CO oxidation are identified, leading to enhanced insight of this foundational component in the mechanisms of hydrocarbon oxidation. A similar analysis was also conducted for H2/CH4/O2. yielding useful information for the utilization of syngas.

KW - Eigenvalue analysis

KW - Explosion limits

KW - Methane

KW - Syngas

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AN - SCOPUS:85048958918

T2 - 10th U.S. National Combustion Meeting

Y2 - 23 April 2017 through 26 April 2017

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