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Synthesis Of Cyclohexylamine And Refining Hydrogen
There are five main synthesis methods: aniline catalytic hydrogenation, nitrocyclohexanamine reduction, cyclohexanol catalytic ammoniolysis, phenol hydrogenation ammoniation, nitrobenzene one-step preparation of cyclohexylamine. At present, except for a few domestic enterprises using cyclohexanol catalyzed ammonolysis method to produce cyclohexylamine, other enterprises use aniline catalyzed hydroreduction method to produce cyclohexylamine.
The process relates to a tail gas refining method, in particular to the hydrogenation of aniline to prepare cyclohexylamine and the deamination of dicyclohexylamine tail gas to refine hydrogen.
Device will cyclohexylamine and dicyclohexyl amine emissions of exhaust gas by Roche hydrogen compressor, oil removal device, enter the ammonia absorption tower, within the tower, a large amount of ammonia are transformed into ammonia water absorption by the bottom output, output for aqueous hydrogen gas composition, the tower will aqueous hydrogen by water segregator, fiber filters, water adsorption tower to further remove water vapor, hydrogen refining.
