Journal of Agricultural Engineering
Open Access
  • Year: 2023
  • Volume: 60
  • Issue: 1

Extraction of Value-added Chemicals from Sawdust Bio-oil Through Liquid-liquid Extraction

1Senior Research Fellow, Department of Renewable Energy Engineering, Agricultural Engineering College and Research Institute, Tamil Nadu Agricultural University, Coimbatore – 641003

2Professor and Head, Department of Agricultural Engineering, Agricultural College and Research Institute, Madurai625 104

3Associate Professor, Department of Renewable Energy Engineering, Agricultural Engineering College and Research Institute, Tamil Nadu Agricultural University, Coimbatore – 641003

*Corresponding author email: k.b.nithiya@gmail.com

Online Published on 22 May, 2023.

Abstract

Bio-oil, a liquid product obtained from pyrolysis of solid biomass, can be used as a sustainable feedstock for the production of renewable fuels and chemicals. Sawdust was used as the feedstock for obtaining bio-oil in conical spouted bed reactor through fast pyrolysis. Liquid-liquid extraction method was used to separate the bio-oil into different chemical groups by their polarities to stabilize bio-oil and improve the quality. Similar oxygen-containing functional groups were present in water and solvent phase of the separated bio-oil. Chloroform, hexane, and petroleum ether were used for the extraction of chemicals from the sawdust bio-oil through liquid-liquid extraction. The solvent phase had high concentrations of organic compounds. With chloroform extraction solvent, 65.89%(w) of organics in water phase were extracted.

Keywords

Bio-oil, Biochemicals, Biofuels, Liquid-liquid extraction