Economic index of Ecological Charcoal Based on Prosopis juliflora_Eichhornia crassipes Mix and their carbon sequestration potential

The density of the charcoal based on Prosopis juliflora (50≤%) and Eichhornia crassipes (50≥%) is 0.395±0.037g/cm3 with the average humidity rate before drying of 48.89±14.03%, a low porosity (0.17±0.01) and a low average impact resistance index of 69.37±5.93%.

With an average calorific value of 17.56±0.96 kJ/kg and a specific calorific capacity of 0.596±0.004kJ/kg/K, these dry ecological charcoals fix on average 58.24±24.54% of carbon and sequester on average 1194.31±1512.21kg of CO2/year. The average weighted mass yield of these ecological coals is 90.096±1.5136% while its technological yield is 5.076±0.288%. For an average commercial yield of 1.2535±0.0034%, the average Economic Value index would be 1.5875±0.1510, which leads to a local sales price of 238.125±22 .6528 FCFA/KG (i.e. €0.36/KG).