Effect of temperature and residence time on pyrolysis of rice husk pellet

Abstract

Biomass, mainly agricultural residues, is found widely available in Vietnam for energy services. For these ends, it is normally upgraded by thermo-chemical or biological conversions before being use as clean and efficient fuels. In this work, a pyrolysis of rice husk pellet was performed by mean of an electrical oven. Three final temperature values were selected i.e 400⁰C, 600⁰C, and 800⁰C. For each selected value of pyrolysis temperature, three levels of residence time for pyrolysis process were set as 0, 60 and 120 minutes, respectively. Some properties of the final product from the pyrolysis process i.e volatile, ash content, fixed-carbon and higher heating value (HHV) were measured. The experimental results have shown that in the current range of experimental work, charcoal products could get  the highest fixed-carbon content at the pyrolysis temperature of 600⁰C and with the residence time of 120 minutes.