液化天然气(LNG)从-162℃到常温,中间有将近180℃的温差,其气化过程中释放的冷能通常随海水和空气被舍弃,不仅浪费资源,还可能引起局部海域低温污染;而空分设备的低温环境主要是由电力驱动机械制冷产生,电力成本约占生产成本的60%~70%。如果能借用 Liquefied natural gas (LNG) from -162 ℃ to normal temperature, the middle of nearly 180 ℃ temperature difference, the gasification process of the release of cold energy is usually with seawater and air are discarded, not only a waste of resources, but also may cause local sea low temperature pollution; and The low temperature environment of the air separation plant is mainly produced by electric drive mechanical refrigeration. The cost of electricity accounts for about 60% -70% of the production cost. If you can borrow