Abstract

India generates about 657 million tonnes of agro-residues each year, which has been identified as a potential bioenergy resource, and a long-term answer to the country's energy challenges, in tandem with other forms of renewable energy. Among various agro-residue conversion techniques, pyrolysis has emerged as one of the most promising options. The present communication presents an overview of reported investigations by Indian researchers pertaining to pyrolysis of agro-residues along with issues and possible solutions. Characterization of reported agro-residues in terms of proximate, ultimate, biochemical composition, and higher heating values have been analyzed. Kinetics of pyrolysis and significant thermodynamics studies have also been taken into account. Study revealed that heterogeneity of agro-residues, in terms of varying physico-chemical and bio-chemical characteristics, in view of diverse climatic conditions and cultivation patterns in different parts of India, have a bearing on their thermal degradation behavior and in turn dictate their prospective energy potential.

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