A Kinetic Modeling Study for the Effect of NOx on Oxymethylene ethers (OMEn, n = 0 and 1) oxidation

  • We present a detailed kinetic model for the oxidation of dimethyl ether (OME0) and dimethoxymethane (OME1) in presence of NOx. We further explored the effect of NOx chemistry on the oxidation kinetics of the two OMEs. Our kinetic model is validated against the recent flow reactor data from Zhang et al. (Combust. Flame. 224 (2021) 94– 107). The results indicated that NO doping severely alters the oxidation kinetics of both fuels. The onset temperature for total fuel consumption is significantly shifted to lower temperatures for both fuels, which is in line with the experimental observation. We found that the addition of NO significantly inhibited the NTC behaviour of dimethyl ether. This inhibiting effect appears to stem from the competition between CH3OCH2O2 radical consumption by NO directly and the isomerization/dissociation reactions of CH3OCH2O2. Unlike dimethyl ether, dimethoxymethane does not exhibit a strong NTC behavior, and NO addition completely inhibited its weak NTC behavior.

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Metadaten
Author: Krishna Prasad ShresthaORCiD, Binod Raj GiriORCiD, Lars SeidelORCiD, Aamir Farooq, Fabian MaußORCiD
URL:https://www.researchgate.net/publication/353620538_A_Kinetic_Modeling_Study_for_the_Effect_of_NOx_on_Oxymethylene_ethers_OMEn_n_0_and_1_oxidation
Title of the source (English):10th European Combustion Meeting, Neapel
Place of publication:Neapel
Document Type:Conference publication peer-reviewed
Language:English
Year of publication:2021
Tag:DME; DMM; Kinetic Modeling; NOx; Oxymethylene ethers
Research profile line:1 Energiewende und Dekarbonisierung / Energy Transition and Decarbonisation
Research profile line:4 Künstliche Intelligenz und Sensorik / Artificial Intelligence and Sensor Technology
Faculty/Chair:Fakultät 3 Maschinenbau, Elektro- und Energiesysteme / FG Thermodynamik / Thermische Verfahrenstechnik
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