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Frontiers in Chemistry

Chemical and Process Engineering

Original Research ARTICLE Provisionally accepted The full-text will be published soon. Notify me

Front. Chem. | doi: 10.3389/fchem.2019.00793

Pore level study of syngas production from fuel-rich partial oxidation in a simplified two-layer burner

 Junrui Shi1, Mingming mao1*, Houping Li1, Yongqi Liu1 and Yasong Sun2
  • 1Shandong University of Technology, China
  • 2Northwestern Polytechnical University, China

We performed pore level simulation of fuel-rich partial oxidation of CO2/CH4 mixture in a two-dimensional porous burner with staggered arrangement of discrete particles. The chemistry was treated with detailed chemical kinetics GRI-Mech 1.2 and surface to surface radiation was taken into account by discrete ordinates (DO) model. The predicted results were validated against the available experimental data and results by volume averaged method. The predicted main syngas products (CO, H2, CO2) agreed well with the experimental data for the whole investigation range, it indicated that the pore level simulation could precisely predict syngas productions from fuel-rich partial oxidation in a two-layer burner with the simplified arrangement of porous media. Variations of species, temperature and velocity within the pores were presented and discussed. The predicted molar fractions of CO, H2, CO2, H2O et al. over the pores between particles were highly two-dimensional, the flame thickness was order of the particle diameter (2.5 mm) and smaller than the particle diameter. The predicted area-weighted average temperatures were greater than the experiments due to the ignorance of the heat loss to the surroundings through burner walls. The effect of CO2 adding on syngas production is examined.

Keywords: fuel-rich partial oxidation, Porous media, Syngas Production, Staggered Arrangement, Pore level

Received: 20 Jul 2019; Accepted: 04 Nov 2019.

Copyright: © 2019 Shi, mao, Li, Liu and Sun. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Dr. Mingming mao, Shandong University of Technology, Zibo, China, shandongmao@163.com