Bio-coal briquette is a new kind of energy source made from coal and plants like biomass. Researchers studied how different factors affect its strength and burning properties. They found that moisture in the biomass, the type of binder used, and the pressure during shaping affect how strong the briquettes are. They also discovered that bio-coal briquettes burn differently than just coal or biomass alone, and adding specific materials can help reduce the release of harmful sulfur gases during burning. This study suggests that more research is needed to fully understand how to make bio-coal briquettes work well for making energy.