The development and validation of a chemical kinetic model for anisole, a compound to represent biomass pyrolysis fuels
Wagnon, Scott W. ; Thion, Sébastien ; Nilsson, Elna J.K. LU
; Mehl, Marco
; Serinyel, Zeynep
; Zhang, Kuiwen
; Dagaut, Phillippe
; Konnov, Alexander A.
LU
; Dayma, Guillaume
and Pitz, William J.
(2017)
10th U.S. National Combustion Meeting
- Abstract
Lignocellulosic biomass is a promising alternative fuel source which can promote energy security, reduce greenhouse gas emissions, and minimize fuel consumption when paired with advanced combustion strategies. Pyrolysis is used to convert lignocellulosic biomass into a complex mixture of phenolic-rich species that can be used in a transportation fuel. Anisole (or methoxybenzene) can be used as a surrogate to represent these phenolic-rich species. Anisole also has attractive properties as a fuel component for use in advanced spark-ignition engines because of its high blending research octane number of 120. Presented in the current work are new measurements of laminar burning velocities, jet-stirred reactor (JSR) speciation of... (More)
Lignocellulosic biomass is a promising alternative fuel source which can promote energy security, reduce greenhouse gas emissions, and minimize fuel consumption when paired with advanced combustion strategies. Pyrolysis is used to convert lignocellulosic biomass into a complex mixture of phenolic-rich species that can be used in a transportation fuel. Anisole (or methoxybenzene) can be used as a surrogate to represent these phenolic-rich species. Anisole also has attractive properties as a fuel component for use in advanced spark-ignition engines because of its high blending research octane number of 120. Presented in the current work are new measurements of laminar burning velocities, jet-stirred reactor (JSR) speciation of anisole/O2/N2 mixtures, and the development and validation of a detailed chemical kinetic mechanism for anisole. Homogeneous, steady state, fixed temperature, perfectly stirred reactor CHEMKIN simulations were used to validate the mechanism against the current JSR measurements and published JSR experiments from CNRS-Nancy. Pyrolysis and oxidation simulations were based on the experimental reactant compositions and thermodynamic state conditions including P = 1 bar and T = 675-1275 K. The oxidation compositions studied in this work span fuel lean (φ = 0.5), stoichiometric, and fuel rich (φ = 2.0) equivalence ratios. Premixed laminar burning velocities were measured on a heat flux stabilized burner at an unburnt T = 358 K, P = 1 bar and simulated using the CHEMKIN premixed laminar flame-speed module. Under pyrolysis and oxidative conditions, unimolecular decomposition of anisole to phenoxy radicals and methyl radicals was found to be important due to the relatively low bond strength between the oxygen and methyl group, ~65 kcal-mole-1
(Less)
- author
- Wagnon, Scott W.
; Thion, Sébastien
; Nilsson, Elna J.K.
LU
; Mehl, Marco
; Serinyel, Zeynep
; Zhang, Kuiwen
; Dagaut, Phillippe
; Konnov, Alexander A.
LU
; Dayma, Guillaume
and Pitz, William J.
- organization
- publishing date
- 2017-01-01
- type
- Contribution to conference
- publication status
- published
- subject
- keywords
- Biomass, Burning velocity, Lignin, Methoxybenzene
- conference name
- 10th U.S. National Combustion Meeting
- conference location
- College Park, United States
- conference dates
- 2017-04-23 - 2017-04-26
- external identifiers
-
- scopus:85049085889
- language
- English
- LU publication?
- yes
- id
- b4af9734-4d52-4460-a6a6-c3babc85e5fd
- date added to LUP
- 2018-07-09 14:14:11
- date last changed
- 2022-04-25 08:18:35
@misc{b4af9734-4d52-4460-a6a6-c3babc85e5fd,
abstract = {{<p>Lignocellulosic biomass is a promising alternative fuel source which can promote energy security, reduce greenhouse gas emissions, and minimize fuel consumption when paired with advanced combustion strategies. Pyrolysis is used to convert lignocellulosic biomass into a complex mixture of phenolic-rich species that can be used in a transportation fuel. Anisole (or methoxybenzene) can be used as a surrogate to represent these phenolic-rich species. Anisole also has attractive properties as a fuel component for use in advanced spark-ignition engines because of its high blending research octane number of 120. Presented in the current work are new measurements of laminar burning velocities, jet-stirred reactor (JSR) speciation of anisole/O2/N2 mixtures, and the development and validation of a detailed chemical kinetic mechanism for anisole. Homogeneous, steady state, fixed temperature, perfectly stirred reactor CHEMKIN simulations were used to validate the mechanism against the current JSR measurements and published JSR experiments from CNRS-Nancy. Pyrolysis and oxidation simulations were based on the experimental reactant compositions and thermodynamic state conditions including P = 1 bar and T = 675-1275 K. The oxidation compositions studied in this work span fuel lean (φ = 0.5), stoichiometric, and fuel rich (φ = 2.0) equivalence ratios. Premixed laminar burning velocities were measured on a heat flux stabilized burner at an unburnt T = 358 K, P = 1 bar and simulated using the CHEMKIN premixed laminar flame-speed module. Under pyrolysis and oxidative conditions, unimolecular decomposition of anisole to phenoxy radicals and methyl radicals was found to be important due to the relatively low bond strength between the oxygen and methyl group, ~65 kcal-mole<sup>-1</sup> </p>}},
author = {{Wagnon, Scott W. and Thion, Sébastien and Nilsson, Elna J.K. and Mehl, Marco and Serinyel, Zeynep and Zhang, Kuiwen and Dagaut, Phillippe and Konnov, Alexander A. and Dayma, Guillaume and Pitz, William J.}},
keywords = {{Biomass; Burning velocity; Lignin; Methoxybenzene}},
language = {{eng}},
month = {{01}},
title = {{The development and validation of a chemical kinetic model for anisole, a compound to represent biomass pyrolysis fuels}},
year = {{2017}},
}