LNG卫星站冷能利用项目开发

LNG冷能用于冷库工艺流程，略微增加了原有LNG气化系统的压力降，不影响整体气化量和天然气压力控制。该项目总投资90．88×10^4元，年均销售收入74．80×10^4元／年，内部税后收益率48．07％，具有较高的赢利空间。该工艺的LNG冷能利用率可达87．8％，其冷火用利用率达26．8％，尚有较大利用空间。远期规划建立冷媒循环系统来回收利用LNG冷能，用于废旧橡胶低温粉碎、二氧化碳液化和干冰制备、中小型低温冷库等中试项目，建成LNG冷能高效利用技术示范基地。

Development of Cold Energy Utilization Project in LNG Satellite Station

The utilization of LNG cold energy in the technological process of cold store has no effect on the total vaporization capacity and the control of natural gas pressure, only increasing the pressure drop of LNG vaporization system slightly. The total investment of the project is 90.88 × 10^4 yuan, the average annual sale revenue is 74.80 ×10^4 yuan, and the internal rate of return after tax is 48.07% , thus there are higher earnings. The utilization rates of LNG cold energy and cold exergy are 87.8% and 26.8% respectively, and there is still a higher utilization rate. The long-term plan for building the refrigerant circulatory system to recover LNG cold energy is formulated. It can be used for cryogenic comminution of waste rubber, liquefaction of carbon dioxide, preparation of dry ice, middle- and small-scale cold store and other pilot projects. Therefore, The technical demonstration base for efficient utilization of LNG cold energy is built.