冷冻法海水淡化技术进展

摘要

随着液化天然气在全球范围内需求量的增加，对其气化后所产生高品质冷能的利用，是各个国家特别是发达国家竞相追逐的对象。对冷冻法海水淡化和LNG冷能结合冷冻法趋势进行讨论，分析了各种工艺的优缺点以及应用前景，提出了LNG冷能冷冻法与膜法联用是目前利用LNG冷能淡化海水的最适合方法。%With the increasing demand for liquefied natural gas(LNG) in the whole world,the utilization of the high-quality cold energy which is produced from the gasification of LNG has been the object pursed by all countries ,esp. the developing countries. The tendency of freezing method which is a combination of desalination and LNG cold ener-gy is discussed. The advantages and disadvantages of various technologies and their application prospect are ana-lyzed. It is proposed that the LNG cold energy freezing method combined with membrane method is the most suitable method for the application of LNG cold energy to desalination.