Let’s discuss the dechlorination issue in the continuous reforming regeneration system

Our factory has newly installed a reforming unit, and we lack experience; we hope everyone can provide us with lots of suggestions.

Our factory uses alkaline cleaning, and problems often arise in winter – either crystallization in the pipelines or blockages in the water coolers. It seems that the dechlorination tank is better, but the dechlorinating agent needs to be replaced after a year or so, which is quite annoying.

The dechlorination adsorption tanks we use here can also be used for

Axens’ design uses an alkali washing system, with the temperature of this system being regulated through water cooling, and the results are satisfactory

This post was last edited by lijianhuai on 2012-2-16 at 14:12. The caustic scrubber operates continuously and in a stable manner, but it requires the factory’s utility systems to be able to supply high-concentration caustic solution as well as to handle waste caustic solution. A potential issue during operation is corrosion of the circulating caustic solution cooler; it is recommended to invest in heat exchanger cores made of high-grade metal materials from the start. Some modifications have been made to the water injection and alkali injection systems of Jinling’s regenerated caustic scrubber tower; the water injection pump has been removed, and feed water is now supplied under its own pressure using demineralized water ； The alkali injection point is moved backward, to be added after the cooler, thereby reducing erosion and corrosion of the cooler core. I don’t know much about the dechlorination adsorption tank process; I assume it works on a similar principle to hydrogen dechlorination tanks. I’m not sure how they address the issues of high temperature and high moisture content in the regenerated gas.