Abstract
Among the various applications of cotton and castor biomass, application of biochar to soil is gaining popularity due to increased crop productivity and CO2 sequestration. The slow pyrolysis of cotton and castor stalk at 250-500 °C was investigated in this study to characterize in terms of production of biochar, bio oil, pyrogases and its chemical properties by using batch type Pyrolyser. The biochar showed a general trend of decreasing biochar production and increasing bio oil, pyro gas production, PH, and EC and along with increasing temperature, and CEC decreased with increasing temperature. Out of all the experiments levels the best quality of biochar was found at 500 °C temperature and 180 minutes’ residence time for the chopped cotton and castor biomass as feed stalk.
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