A process for producing long- burning charcoal briquettes with rice hull and pineapple peels

Abstract

This utility model discloses a process for producing aromatically-enhanced and long- burning charcoal briquettes utilizing a formulation of 80% carbonized rice hull and 15% carbonized pineapple peels (Ananas comosus) by weight. The process integrates 3% calcium carbonate (CaCO3) as a combustion regulator to stabilize the high-silica biomass and 2% cassava starch as a natural binder. The carbonized materials are pulverized and blended with water in an amount ranging from 10% to 15% by total volume to form a malleable paste, which is subsequently pressuremolded into uniform briquettes and air-dried for 24 to 48 hours. The resulting product is characterized by a minimum sustained combustion duration of 100 minutes and a reduced smoke output. This innovation provides a sustainable, costeffective energy alternative that emits a pleasant, fruity aroma during use, making it ideal for domestic and commercial cooking applications.