In the process of natural gas production and transmission in gas storage, J-T valve refrigeration + ethylene glycol injection is the technology to prevent freezing and blocking due to hydrate formation. The ethylene glycol regeneration system will increase the concentration of the recovered rich ethylene glycol liquid to meet the requirements of hydrate inhibitor recycling. There are some problems in the  traditional regeneration process, such as ethylene glycol solution being easily contaminated by condensate, process fluid becoming acidic causing corrosion of regeneration equipment , scaling, coking resulting in blocking of circulation system, etc. Through the study on the optimization of ethylene glycol regeneration process of S gas storage, the new glycol regeneration unit replaces the whole traditional regenerated glycol unit with stainless steel equipment and adds a high capacity stainless steel lean and rich liquid filter  The new type of regeneration unit in S gas storage has addressed the above issues and provided reference for process system of the same nature.