MUMBAI, India, Feb. 6 -- Intellectual Property India has published a patent application (202521125075 A) filed by Sayaji Industries Ltd., Ahmedabad, Gujarat, on Dec. 11, 2025, for 'sorbitol production using wastewater-derived green hydrogen.'
Inventor(s) include Mr. Priyam Bipin Mehta; Mr. Varun Priyam Mehta; and Mr. Vishal Priyam Mehta.
The application for the patent was published on Feb. 6, under issue no. 06/2026.
According to the abstract released by the Intellectual Property India: "This disclosure relates to an integrated sorbitol production process utilizing hydrogen generated directly from starch-processing wastewater. Dextrose is subjected to catalytic hydrogenation in the presence of a Raney nickel catalyst and a magnesium promoter under controlled elevated temperature and pressure. Industrial wastewater containing high total dissolved solids, suspended particulates, and organic load is pre-filtered and electrolyzed using an impurity-tolerant electrolyser to produce process-grade hydrogen without complete desalination. The generated hydrogen is compressed, stored in a buffer vessel, and supplied as the primary hydrogen source to the hydrogenation reactor. Automated control logic enables seamless switching to compressed hydrogen cylinders based on buffer pressure or flow-demand thresholds, ensuring continuous operation. The process simultaneously delivers commercial-scale sorbitol production, effluent valorisation, reduced fossil-hydrogen dependency, and lower carbon footprint, representing a circular and energy-efficient pathway for sustainable starch-industry chemical manufacturing."
Disclaimer: Curated by HT Syndication.
