Research Of Catalytic Hydrogenation Technology Of Dinitrotoluene

This paper is stirring speed reaches the critical speed control,through the expe-riment of autoclave hydrogenation reactor suction capacity,guide shell and Study on mixing fluid volume,push,improvement of equipment within the draft tube inlet pipe,and the position of the stirrer,the machine has mixed liquid circulation from the mixing area by the bottom to circulation area forced flow rule,to ensure the uniform distribution of effective gas liquid dispersion and catalyst.The hydrogenati on reactor improved as the place,with intermittent liquid phase catalytic hydrogenati on process,using 2,4-DNT as raw materials,selection of nickel catalyst,ethanol as solvent,stirring speed and to ensure that the reactor enter the intrinsic hydrogen reaction in the reaction zone,DNT concentration,reaction pressure,catalyst concen-tration,reaction temperature and other conditions of a certain,keeping other conditi-ons unchanged,with hydrogen gas mass flowmeter metering reaction process ofhydrogen Dosage,the conversion of material concentration changes,experimentaldata processing,in controlling the concentration of DNT was 8%,reaction pressure20bar,catalyst concentration was 0.3%,reaction temperature of 120?and other c onditions,by reaction rate curve,fitting,is a with the engineering characteristic of r eactor node structure reaction rate equation for r_DNT=1408e^-17616.5/RT P_H2·C_Ni.