An assessment of bamboo charcoal briquettes derived from the two main bamboo species in Ethiopia

The primary aim of this research was to study the manufacturing process of bamboo charcoal briquettes following the principles of life cycle assessment. Charcoal briquettes produced from lowland bamboo exhibited good fuel characteristics, higher calorific value and fixed carbon, and low moisture content. The ash content was in compliance with the international acceptable standard. Bamboo charcoal briquettes from highland bamboo (Oldeania alpina) and lowland bamboo (Oxytenanthera abyssinica) had calorific values of 6785 cal/gm and 7106 cal/gm, respectively. Manufacturing the briquettes at an ideal moisture content for carbonization saves time and leads to a maximum yield. Bamboo bioenergy (briquettes) produced in regulated kilns using locally available materials have gained popularity. Bamboo biomass utilization contributes to reducing deforestation and creates employment opportunities in bamboo value chains, as well as and contributing to UN SDG 7. Developing sustainable bamboo biomass energy use requires informing entrepreneurs about suitable business ecosystems. This research should encourage the proper utilization of the biomass feedstock and should ensure a healthier environment through the supply of a renewable source of energy. The most relevant findings in the present work were the production of environmentally friendly charcoal briquettes and their characterization (proximate and calorific value analysis) within the context of life cycle assessment of bamboo charcoal briquette technology.