Numerical modeling of a downdraft plasma coal gasifier with plasma reactions

Ibrahimoglu B., YILMAZOĞLU M. Z.

International Journal of Hydrogen Energy, vol.45, no.5, pp.3532-3548, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 45 Issue: 5
  • Publication Date: 2020
  • Doi Number: 10.1016/j.ijhydene.2018.12.198
  • Journal Name: International Journal of Hydrogen Energy
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Artic & Antarctic Regions, Chimica, Communication Abstracts, Compendex, Environment Index, INSPEC
  • Page Numbers: pp.3532-3548
  • Keywords: Gasification, Plasma, Coal, Equivalence ratio, Fossil hydrogen, Clean coal, ENTRAINED FLOW GASIFICATION, MUNICIPAL SOLID-WASTE, OXIDE FUEL-CELL, STEAM PLASMA, BIOMASS GASIFICATION, HYDROGEN-PRODUCTION, CHAR GASIFICATION, SYNGAS PRODUCTION, MICROWAVE STEAM, SEWAGE-SLUDGE
  • Anadolu University Affiliated: No

Abstract

© 2019 Hydrogen Energy Publications LLCIn this paper, a 3D numerical simulation of a downdraft plasma gasifier with plasma reactions is conducted. The effects of the equivalence ratio (ER) on the syngas properties in the presence of the plasma reactions are investigated. The boundary conditions for the air plasma inlet of the gasifier are obtained from the outlet of a 10 kW microwave plasma generator. A conventional gasification analysis is carried out to validate the model. In the second part of the study, plasma reactions are added to conventional gasification equations. Mole fractions of the constituents of the syngas and temperature contours are obtained for different ER values. According to the results, with the increase of ER from 0.20 to 0.45 the lower heating value of the produced syngas decreased from 1536.6 kcal/m3 to 751.8 kcal/m3.