gas treatment system and offshore plant having the same

摘要

The present invention relates to a gas processing system and an offshore structure including the same, comprising: a cooling unit for cooling a gas produced in the gas well; A distillation unit for distilling at a low temperature to separate carbon dioxide from the cooled gas; A liquefaction unit for liquefying the gas from which carbon dioxide is separated; And a vent part for venting the gaseous gas discharged from the distillation part, wherein the distillation part injects an anti-icing agent, which is a hydrocarbon provided independently from the gas produced in the gas well, into the distillation column to prevent freezing of carbon dioxide. It characterized in that it has a prevention part.