Carbon four raw material dehydrating catalyst regeneration device

Abstract

This utility model relates to a regeneration device for a C4 feedstock dehydration catalyst. The technical solution is as follows: the outlet of a nitrogen electric heater is connected to the top of the dehydration tower via a pipeline; the bottom drying air outlet is connected to the tube-side inlet of the regeneration gas inlet / outlet heat exchanger; the tube-side outlet of the regeneration gas inlet / outlet heat exchanger is connected to the inlet of the regeneration gas cooler; the outlet of the regeneration gas cooler is connected to a regeneration gas dryer via a pipeline; the outlet of the regeneration gas dryer is connected to a regeneration gas circulation compressor; the outlet of the regeneration gas inlet / outlet heat exchanger is connected to the shell-side inlet of the regeneration gas inlet / outlet heat exchanger; the shell-side outlet is connected to a circulating regeneration gas electric heater via a pipeline; and the outlet of the regeneration gas is connected to a nitrogen electric heater via a pipeline, thus realizing the circulation of regeneration gas for the dehydration catalyst. Its beneficial effects are: the drying air of this utility model is continuously introduced, and the drying effect of the molecular sieve catalyst in the dehydration tower is ensured by the circulating heating of the regeneration gas; the catalyst regeneration cost is reduced through heat coupling.

Images