Hydrogen from agri-residues--new technology from Agharkar Research Institute

A team of researchers from Agharkar Research Institute, Pune, an autonomous institute of the Department of Science and Technology (DST), GOI, in collaboration with Sentient labs of KPIT Technologies, have developed this technology at lab-scale to extract hydrogen from agricultural residues.

"Our technology is 25% more efficient as compared with conventional anaerobic digestion processes used today. The two-stage process eliminates the pre-treatment of biomass, thus making the process economical and environment friendly. This process generates a digestate that is rich in nutrients which can be used as an organic fertilizer,” said Dr. Prashant Dhakephalkar, Director of the ARI.

                                    Anaerobic digesters for two-stage biohydrogen and biomethane production

                                            

A team of scientists, Dr. S.S. Dagar and Pranav Kshirsagar from MACS-ARI and Sri Kaustubh Pathak from KPIT-Sentient, contributed significantly towards the development of the process. The developers of the technology explained that the hydrogen fuel generation process comprises the use of a specially developed microbial consortium that facilitates biodegradation of cellulose- and hemicellulose-rich agricultural residues, such as biomass of paddy, wheat, or maize, without thermo-chemical or enzymatic pre-treatment. The process generates Hydrogen in the first stage and Methane in the second. The methane generated in the process can also be used to generate additional hydrogen, they added.

“This breakthrough of generating hydrogen from unutilized agricultural residue will help us to become self-reliant on energy resources. It will also add a major stream of revenue to the farmer community,” said Ravi Pandit, Chairman, Sentient Labs.  An Indian Patent application has been filed to protect the IPR.