Liquefie D Natural Gas Technology Research And Application

The natural gas is a kind of high efficient, high quality, and clean energy. The physical volume of the nature gas is smaller after620times for the original volume after liquefied at low temperature. This doing is very convenient for its conveyance and storage. The liquefaction of natural gas is now a new and advanced technology. This text which considered the practical situation, make the detailed analysis and research in low temperature liquefaction process of nature gas.This paper introduces the natural gas liquefied technology at home and abroad and the development of the status quo, natural gas Purifying and liquefying techniques are studied. By comparing the methods which be used usually in natural gas Pretreated Process, the typical process used to remove acid gas-. dehydrate and remove sulfide. In the study of liquefied technique, the fundamental regulation for the choice and design is given out through the analysis to those characteristics that all kinds of modern common-using liquefied cycles in use of natural gas have. And then, the SRK and the P-R are regarded as the calculation model of the vapor-liquid equilibrium, and the LKP equation is used to calculate the enthalpy and entropy of hydrocarbons,the simulation method of the main equipment of liquefaction process and the MRC process is given.According to the gas characteristic in yanchang oil field, the treated project and the MRC process are selected by contrast analysis in the end. The MRC process is the most widely used process flow in the world at present. Meanwhile, the key operation unit is described according to the process flow diagram. In the process of design to adopt more advanced technology, which is used for reference to the other gas field that has similar gas character.At last, the methods of LNG cold energy utilization were reviewed, the paper says LNG cold will help to improve the efficiency in the use of LNG.