EXPERIMENTAL STUDIES ON GASIFICATION PERFORMANCE OF SAWDUST AND SAWDUST PELLET IN A DOWNDRAFT BIOMASS GASIFIER

  • Fatin Zafirah Mansur Faculty of Chemical and Process Engineering Technology, Universiti Malaysia Pahang, 26300, Gambang, Pahang, Malaysia.
  • Che Ku Mohammad Faizal Faculty of Chemical and Process Engineering Technology, Universiti Malaysia Pahang, 26300, Gambang, Pahang, Malaysia.
  • N. A. Fazli Faculty of Chemical and Process Engineering Technology, Universiti Malaysia Pahang, 26300, Gambang, Pahang, Malaysia.
  • S. M. Atnaw College of Electrical and Mechanical Engineering, Addis Ababa Science and Technology University, Ethiopia
  • S. A. Sulaiman Department of Mechanical Engineering, Universiti Teknologi Petronas, 32610 Bandar Seri Iskandar, Perak, Malaysia
Keywords: gasification, pelletization biomass, heating value, gasification efficiency, carbon conversion efficiency

Abstract

In this work, a comparative analysis of the gasification process of sawdust (SW) and sawdust pellet (SWP) utilizing a downdraft gasifier was performed. The gasification was conducted in a research-scale fixed-bed gasifier applying air as an oxidizing agent. The comparison between the raw (sawdust, SW) and treated biomass (sawdust pellet, SWP) was investigated for the syngas composition and gasification performance at the fixed condition of gasification temperature at 750 °C and equivalence ratio of 0.25. The gasification performance was tabulated in the form of heating value of the syngas (HHVsyngas), gasification efficiency (ηGE) and carbon conversion efficiency (ηCCE). It was found out that SWP produced the highest H2 and the lowest CO2. Furthermore, SWP also present the better gasification performance than SW. SWP achieved the high HHVsyngas, ηGE, and ηCCE at 4.2152 MJ/Nm3, 24% and 37%, respectively.

Published
2020-04-05
Section
Articles