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Publication No: IN202211071459 [India] Application No: 202211071459
Title: A bi-phasic solvothermal liquefaction process for production of phenolic rich bio oil from soda lignin with in-situ homogeneous catalyst
Publication Date: 14-06-2024 File Date: 09-12-2022
Inventor(s): Yenumala Sudhakara Reddy; Jitendra Kumar; Thallada Bhaskar
IPC Classification: C10L 1/02, C10B 53/02, C10G 3/00, C10G 1/08, C10G 1/04
Abstract: The solvothermal liquefaction of lignin was carried out using ethyl acetate-water as a solvent medium at 220, 240, 260 and 280 ?C reaction temperature, 15, 30 and 45  minute residence time and N2 as gaseous environments to produce bio oils with antimicrobial activities. The effect of reaction conditions was observed for lignin  conversion and product bio-oil, bio-char and gas yields. Selectivity of various phenolic chemicals was affected by optimizing reaction conditions. The GC-MS analysis  showed that bio-oils were a mixture of organic compounds which mainly includes substituted phenolic moieties like acetosyringone, 4-ethyl-2-methoxy-phenol, 2,6- dimethoxy-phenol,vanillin,and few more. Further, the bio-oil obtained was tested for antimicrobial activity against E coli, S aureus, P aeruginosa, Salmonella abony and  Bacillus subtils and showed good antimicrobial activity.
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Industrial Applications Biomolecules [Biological Science] Catalyst [Fuels and Lubricants] Catalysts [Chemistry, Chemical Processes] Diagnostics [Medical Devices and Diagnostics] Thermodynamics [Physics]