Charcoal production from waste pequi seeds for heat and power generation.

摘要: Abstract Many specialized technologies are available to convert waste biomass into secondary products that have a higher value and more convenient process than the original feedstock. This study evaluated potential of pequi seeds produce high-quality charcoal for subsequent gasification low-tar producer gas heat engine applications. We focused on characterization seeds, derived charcoal, collected bio-oil from slow pyrolysis conversion Thermodynamic equilibrium calculations were conducted assess performance parent its charcoal. also investigated thermal degradation kinetics through non-isothermal thermogravimetric analysis. Finally, two-step energy-extraction analysis was performed carbonization further utilization in an integrated gas-engine cycle. Slow (2 °C min−1, 430 °C) produced up 40% high-grade with 60% fixed carbon, 43% bio-oil, 16% light gases. The overall energy extraction efficiency estimated as 61%, based heating wet seeds. investigation confirmed could be considered promising renewable source combined power generation Brazilian agro-food industry.