Revista de Engenharia Química e Tecnologia de Processos
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HYDROGENATION OF NITROBENZENE USING GLYCEROL WITHOUT MOLECULAR HYDROGEN

Er Abhi Soni

The hydrogenation with UHPP (Ultra High Pressure Process) is a new technique in food cold sterilization which has broad application prospect. Other techniques for hydrogenation are with Super Critical Carbon Dioxide (scCO2), with the use of green solvent like Glycerol, with the help of advanced technology Multimax for production of aniline from nitrobenzene. These are the few techniques for hydrogenation at industrial level. The ultra-high-pressure processing technique has already used and applied in production on a large scale. Most hydrogenation processes can be accomplished under fairly mild temperature; many important reactions require high pressure hydrogenation like example benzoic acid to cyclohexane carboxylic acid or in food industries over charcoal-supported transition metal catalysts in supercritical CO2 medium for hydrogenation. In our reaction of hydrogenation the objective is to use catalyst or solvent as a hydrogen donor for the conversion of Nitrobenzene into Aniline without molecular H2. In industry it requires harsh operating conditions to achieve the desired purity of the product. Hence as an intensified process, the experiments will be conducted to establish optimized conversion and selectivity of the products with varying the operating parameters like feed composition, solvent, catalyst (with or without) in proper dosage, temperature and reaction time. Also qualitative and quantitative analysis of the samples with GC/GCMS and relate them to the theoretical analysis of the reaction will be established which may be helpful at industrial level to scale up the process with detailed data analysis with the parameters like cost, quantity, quality, time, safety etc.