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Title: Modeling electron beam irradiation of methane

Journal Article · · International Journal of Chemical Kinetics
DOI: https://doi.org/10.1002/kin.21555 · OSTI ID:1976354
 [1]; ORCiD logo [2]
  1. State University of New York (SUNY), Syracuse, NY (United States); OSTI
  2. State University of New York (SUNY), Syracuse, NY (United States)

We built a chemical kinetic model for the electron beam irradiation of methane and report simulation results with dose rates ranging from 2 to 200 kGy s-1 at 298 K and 1 atm pressure. The model contains 92 species and 778 gas-phase reactions. We report the time evolution of concentrations of stable products (including H2, C2H6, C3H8, C2H4, C3H6, C4H10, C2H2, and C3H4) as well as some radicals and ions. Here we discuss how yields of products depend on dose rate and how they change during the course of irradiation. To understand the processes controlling product formation, we quantify the extent to which various reactions produce and destroy major products and the key radicals and ions. Normalized sensitivity coefficients are computed for the production of stable products to gain further insight into factors controlling product yields. We were able to reduce the mechanism to 63 species and 331 reactions while incurring less than 5% error in the final concentrations of stable products.

Research Organization:
Gas Technology Institute, Des Plaines, IL (United States); State University of New York (SUNY), Syracuse, NY (United States)
Sponsoring Organization:
USDOE; USDOE Office of Fossil Energy (FE)
Grant/Contract Number:
FE0029787
OSTI ID:
1976354
Journal Information:
International Journal of Chemical Kinetics, Journal Name: International Journal of Chemical Kinetics Journal Issue: 4 Vol. 54; ISSN 0538-8066
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (31)

Effect of Argon or Helium on the CO 2 Conversion in a Dielectric Barrier Discharge: Effect of argon or helium on the CO2 conversion in a dielectric barrier discharge journal February 2015
Towards a Consistent Chemical Kinetic Model of Electron Beam Irradiation of Humid Air journal July 2009
Kinetics of the reactions H + C2H4 → C2H5, H + C2H5 → 2CH3 and CH3 + C2H5 → products studied by pulse radiolysis combined with infrared diode laser spectroscopy journal January 1993
Excitation in the radiation chemistry of inorganic gases journal January 1976
Kinetic study of the catalytic reforming of CH4 with CO2 to syngas over Ni/α-Al2O3 catalyst: The effect of temperature on the reforming mechanism journal February 2007
The role of chemistry in the oscillating combustion of hydrocarbons: An experimental and theoretical study journal April 2020
Revealing the critical role of radical-involved pathways in high temperature cyclopentanone pyrolysis journal June 2020
A new improvement on a chemical kinetic model of primary reference fuel for multi-dimensional CFD simulation journal February 2016
Advances in CO 2 gasification reactivity of biomass char through utilization of radio frequency irradiation journal December 2015
Numerical study of plasma produced ozone assisted combustion in a direct injection spark ignition methanol engine journal June 2018
High dose rate electron beam irradiation of heavy alkanes in a multi-phase flow system journal August 2020
Effects of hydrogen enrichment on the combustion and emission characteristics of a turbulent jet ignited medium speed natural gas engine: A numerical study journal April 2021
Effect of electron beam irradiation on CO2 reforming of methane over Ni/Al2O3 catalysts journal December 2004
Industrial applications of electron beam flue gas treatment—From laboratory to the practice journal August 2007
Plasma-Based CH 4 Conversion into Higher Hydrocarbons and H 2 : Modeling to Reveal the Reaction Mechanisms of Different Plasma Sources journal March 2020
Methane Conversion to Higher Hydrocarbons by UV Irradiation journal August 2008
SOME ASPECTS OF THE RADIATION CHEMISTRY OF METHANE 1 journal November 1963
Formation of acetylene and other two-carbon compounds in methane with electron pulses journal December 1967
Energetics, stabilities, and possible structures of CH5+(CH4)n clusters from gas phase study of equilibriums CH5+(CH4)n-1 + CH4 = CH5+(CH4)n for n = 1-5 journal July 1975
Experimental and Theoretical Investigations on the Methyl−Methyl Recombination Reaction journal December 2003
Direct Non-oxidative Methane Conversion by Non-thermal Plasma: Experimental Study journal June 2003
The role of unsaturated products in the radiolysis of methane journal January 1963
Metallic additive manufacturing: state-of-the-art review and prospects journal January 2012
Evaluated Kinetic Data for Combustion Modeling: Supplement II journal September 2005
Investigation of industrial-scale carbon dioxide reduction using pulsed electron beams journal March 2016
Splitting of CO 2 by vibrational excitation in non-equilibrium plasmas: a reaction kinetics model journal June 2014
Review on electron beam based additive manufacturing journal November 2019
The Estimation of the G -Values for Ionization and Excitation of Ten-Electron Molecules: Methane, Ammonia, and Water Irradiated by 100 keV Electrons journal January 1976
Electron Beam Radiolysis of CH 4 /CO 2 Mixtures journal January 1982
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Atropos: specific, sensitive, and speedy trimming of sequencing reads journal January 2017

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