Optimization of Stripping Gas Type and Amount in the Dehydration Unit of Natural Gas Purification Plants
Natural gas extracted from underground often contains impurities such as chemical agents and moisture.Due to the presence of moisture,these impurities can form hydrates under certain conditions,which can easily cause pipeline blockages and affect instrument operation.Additionally,moisture may react with acidic gases to form acid solutions,resulting in corrosion of equipment and pipelines.Therefore,it is crucial to ensure the concentration and solvent regeneration effectiveness of triethylene glycol(TEG)in the dehydration unit.A natural gas purification plant of a certain purification company uses fuel gas as the regeneration stripping gas in the dehydration unit,allowing it to come into countercurrent contact with TEG in a random packed tower to further remove residual moisture from TEG,thereby achieving TEG regeneration.Through in-depth research on the types and amounts of stripping gas,with TEG concentration and the water dew point of commercial natural gas as the main evaluation indicators,this paper optimizes the usage of stripping gas in the regeneration unit while meeting process production parameters.This optimization is of great significance for reducing production costs and improving the production efficiency of the plant.
万方数据
维普
