EVALUATING THE BIOCHAR CREATION EFFICIENCY FROM SPENT COFFEE GROUNDS

The spent coffee grounds are one of the biomass types that bring many benefits to production and life. The creation of biochar fromspent coffee grounds has garnered significant interest in many studies. This article uses the slow pyrolysis method at 450oC, 500oC, and 550oC to create biochar from the spent coffee grounds and determine the biochar generation efficiency to select appropriate experimental parameters of this pyrolysis process. The results showed that, after the slow pyrolysis at 450oC for 30 minutes, theaverage value of the biochar creation efficiency from the spent coffee grounds is higher than that of the remaining pyrolysis process.