Volume 10 Issue 1 ( March 2023 )

The utilization of coconut shells as fuel still has several obstacles, including non-uniform size, low heating value, and low density. Pyrolysis of coconut shells into biochar is used to increase the calorific value and minimize the formation of smoke when burning. Biochar briquetting is needed to increase energy density and uniform size. The purpose of this study was to determine the effect of the type of binder and the concentration on the characteristics of biochar briquettes. The binder used were molasses, cow manure, and horse manure. Molasses is most suitable for use as a binder because it has sticky properties and sufficient moisture content. The ratio of biochar: molasses 70:30 produces briquettes with the best characteristics. In the drop test with a height of 1 m and 1.8 m, biochar briquettes with molasses binder still have 99% size stability.

Keywords: biochar, slow pyrolysis, briquettes, binder molasses