Natural Gas Liquefaction Process And Storage Safety Analysis

The most commonly used mode of natural gas is liquefied natural gas.LNG (liquefied natural gas) has unique advantages in storage and transportation.Research on LNG technology and its application has become a hot issue in the field of application of energy in china.This paper introduces the current domestic and foreign LNG technology development and industrial application prospects,study deeply in natural gas liquefaction and purification process.First of all,comparative study several commonly used gas pretreatment technology scheme in the purification,and worked out a acid removing and dehydration process flow diagram of natural gas.Secondly,explain the refrigeration and refrigeration cycle in natural gas liquefaction process,built mathematical model of molecular sieve dehydration process and gas-liquid equilibrium.Finally,stated the safety factors of LNG storage and teansportation.Synthetic the historical development of natural gas and the current development situation of natural gas at home and abroad,consider the needs of natural gas development,compare several liquefaction processes,the best treatment scheme for natural gas liquefaction is the combination of steping refrigeration and throttling refrigeration cycle.At the same time,according to the restrictive characteristics and the conditions of transport of LNG.put some suggestion foe LNG transportation and storage.Hope to provide some reference to the development and storage of LNG.