一种新型水合物法海水淡化系统能耗及经济性分析  

ENERGY CONSUMPTION AND ECONOMIC ANALYSIS OF A NEW HYDRATE SEAWATER DESALINATION PROCESS

作　　者：龙臻[1,2] 李栋梁[1,2] 梁德青[1] 

机构地区：[1]中国科学院广州能源研究所,中国科学院可再生能源与天然气水合物重点实验室,广东广州510640 [2]中国科学院研究生院,北京100039

出　　处：《水处理技术》2010年第8期67-70,共4页Technology of Water Treatment

基　　金：国家自然科学基金资助项目(50706056);广东省科技计划项目(2009B030600005);国家重点基础研究发展计划项目(2009CB219504)

摘　　要：提出一种新型水合物法海水淡化流程,并基于该流程对海水淡化系统进行了模拟计算,得到海水淡化的能耗。同时,在计算淡化方法的总资产投资、运行维修成本、摊销总资产投资和摊销运行维修成本等经济参数的基础上,获得其最终的淡化成本。结果表明,淡水产率对能耗和生产成本影响很大,随着产率比的提高,相应的总能耗和总生产成本降低,而增加淡水产率需要改进水合物生成的动力学和热力学条件以及选择适合的工质。采用本文的水合物海水淡化方案计算得到的淡化成本要比Javanmardi等人建立的水合物海水淡化流程图下计算的淡化成本低,但是相对薄膜反渗透法,总生产成本还是显得相对很高。A new hydrate seawater desalination process was presented. The energy consumption for this process was first obtained through computer simulation. In addition, these economic parameters such as the total capital investment, operation and maintenance costs, amortized total capital investment, amortized operation and maintenance costs and the product cost were calculated. The results indicated that the fresh water yield ratio had great impact on the energy consumption and the product cost. The energy consumption and the product cost decreased with the fresh water yield ratio increasing. However, in order to increase the fresh water yield ratio, the kinetics and thermodynamics conditions for hydrate foramtion should be improved and suitable hydrate formers should be selected. Finally, it was concluded that the cost of the new process of hydrdate desalination of seawater was lower than that of previous process of hydrate method proposed by Javanmardi et al. Despite relatively lower capital investment of hydrate method than other current desalination technologies including reverse osmosis, multi-stage flash distillation and multi-effect evaporation, the operation and maintenance costs were higher and the resulting total product cost was higher than that of reverse osmosis method.

关 键 词：海水淡化 气体水合物 能耗 成本 

分 类 号：P747[天文地球—海洋科学]