Application of external regeneration catalyst in catalytic gasoline hydrogenation unit
It calibrated three external regenerated catalysts of a 100×104 t/a catalytic gasoline hydrogenation unit of a company and analyzedthe calibration results.The results showed that the gas and liquid phase were evenly distributed in the pre-hydrogenation reactor,hydrodesulfurization reactor and hydrogenation reprocessing reactor,the desulfurization effect of the regenerated PHG-131,PHG-111 and PHG-151 catalysts was good,which met the requirements of the national Ⅵ standard for sulfur content.The inlet temperature of the catalyst bed in each reactor was reduced,the olefin saturation was less,and the octane loss was small.