Preliminary Production Test of Torrefied Woody Biomass Fuel in a Small Scale Plant

Abstract

A small scale demonstration plant was designed to produce upgraded wood fuel by torrefaction. Before starting continuous production, we conducted preliminary torrefaction and pelletization of Japanese cedar. Then combustion test of the torrefied fuel was done using a commercial pellet stove. The main characteristics, such as bulk density, moisture content, and mechanical durability, met the ISO TS 17225-8 guidelines. No time delay and less smoke during ignition were observed when operating the stove using torrefied pellets.