MUMBAI, India, May 29 -- Intellectual Property India has published a patent application (202621030386 A) filed by Dr. Vishwanath Karad Mit World Peace University, Pune, Maharashtra, on March 13, for 'process for biodiesel production from feedstock oils using woody agro-waste based heterogeneous catalysts.'
Inventor(s) include Niraj S. Topare; Numan Arshid; Sharfuddin Ahmed Khan; Anish Khan; Kandasamy Muthusamy; and Prem Gunnasegaran.
The application for the patent was published on May 29, under issue no. 22/2026.
According to the abstract released by the Intellectual Property India: "Disclosed is a process (100) for producing biodiesel using a heterogeneous solid base catalyst prepared from Sal wood (Shorea robusta) husk and walnut shell (Juglans regia) in a 1:1 weight ratio, calcined at 400 C for 2.5 hours in static air (102). Substantially water-free feedstock oil (104) is trans-esterified with methanol at a 5:1 molar ratio, 70 C, atmospheric pressure, 2 wt.% catalyst loading for 1 hour in a jacketed batch reactor agitation system (10) comprising reactor shell (11), shell jacket (12), agitator shaft (13), impeller blades (14), heating coil (15), product outlet (16), and air sparge provision in SS 316. Catalyst is recovered by filtration (108), the product subjected to phase separation (110), and the biodiesel layer purified (112) to yield biodiesel conforming to ASTM D6751 and EN 14214 at 96% conversion, the catalyst being reusable for 4 cycles."
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