Fine-tune refrigerated LPG loading line operations

摘要

Before unloading refrigerated liquefied petroleum gas(LPG)product from a storage tank to an export ship,"the loading line should be cooled from ambient to loaded-product temperatures.This action minimizes LPG evaporation during ship loading.Precooling the LPG transfer/ loading line is a common practice.The cooldown operation is accomplished by running a small stream of the refrigerated product through the loading line.The partially or totally vaporized fluid is recycled to the storage tank through a cooldown-return line.L'PG transfer ships usually cannot manage large vapor volumes as generated in the loading operation.