III International Conference

PP-I-29Advantages of new catalysts are demonstrated especially in liquid-phase processescarried out under pressure and with high linear velosities of contacting reagents.Highly porous cellular catalysts were used in developing new process of liquid-phasehydrogenation of nitro compounds in producing aromatic amines. Now this process is carriedout on supported catalysts representing supports (activated carbon, zeolites, aluminium oxide)with catalysts-active metals of VIII group of Mendeleev’s table. Such catalysts are destroyedafter contacting mixers during reaction, pollute reaction products and it results incomplication of technological process with all that it implies. Method of liquid-phasehydrogenation of nitro compounds on catalysts with new structure, and properties allowed toavoid disadvantages typical for powder-like, granulated catalysts.Pilot production of modular cellular catalysts is mastered. Pilot unit was designed for theprocesses of nitro compounds hydrogenation on which different regimes of liquid-phasehydrogenation were modeled and different types of block cellular catalysts were tested. It wasshown that hydrogenation processes on block cellular catalysts are carried out in softconditions: pressure up to 1 MPa and temperature below 150 °C.Work is executed with support of grant of the Ministry of education and sciences of RF.61