Nitro compound hydrogenation reaction process and hydrogenation reaction apparatus

摘要

The present invention relates to a nitro compound hydrogenation reaction method and hydrogenation reaction apparatus, which can achieve the purpose of continuous reaction and long-term execution of regeneration and activation of nitro compounds. The nitro compound hydrogenation reaction method includes a hydrogenation step, a regeneration step, an optional activation step and a recycling step. There is at least one step of degassing the spent catalyst between the hydrogenation step and the regeneration step. Depending on the circumstances, there is at least one step of degassing the regenerated catalyst between the regeneration step and the activation step.