Process flow of wellhead gas liquefaction device

Process description: The feed gas from the wellhead passes through a desander, a water jacket furnace, separates solid particles and free water, and then enters the purification process system through pressure adjustment and metering, and then undergoes decarburization, mercury removal, dehydration, heavy hydrocarbon removal, etc. To meet the liquefaction requirements, the cold box entering the low-temperature liquefaction system is cooled and condensed by the mixed refrigerant from the refrigerant compressor, and the LNG product is obtained after subcooling, which is transported to the LNG storage tank for storage or directly loaded into the truck.

Main process: MDEA decarbonization, dry dehydration and heavy hydrocarbon removal, DMR mixed refrigeration process.