Removal of benzene as a tar model compound from a gas mixture using non-thermal plasma dielectric barrier discharge reactor

Faisal Saleem, Asif Hussain Khoja, Jamal Umer, Farhan Ahmad, Syed Zaheer Abbas, Kui Zhang, Adam Harvey

Research output: Contribution to journalArticlepeer-review

Abstract

In the present work, the decomposition of benzene as a tar model compound was studied in a gas mixture (CO2, H2, CO, and CH4) using a dielectric barrier discharge (DBD) non-thermal plasma reactor. The combined effect of temperature and power was studied to investigate the performance of the DBD reactor. The decomposition of tar compound increased from 49.9 to 96% with increasing specific input energy (SIE) from 2.05 to 16.4 kWh/m3. The major products were lower hydrocarbons (C2–C5) and solid residues. The higher temperature (400 °C) in the presence of plasma (40 W), decreased the conversion of tar compound from 96 to 78%. However, the selectivity of lower hydrocarbons increases substantially to 52%, and the formation of solid residues is significantly reduced. Hence, the problematic solid residues formation can be controlled at a higher temperature during the treatment of gasifier product gas using non-thermal plasma.

Original languageEnglish
Pages (from-to)97-105
Number of pages9
JournalJournal of the Energy Institute
Volume96
Early online date27 Feb 2021
DOIs
Publication statusPublished - 1 Jun 2021

Keywords

  • Benzene
  • Biomass gasification tar
  • Dielectric barrier discharge
  • Non-thermal plasma

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