摘要
试验研究了HCFC-141b在含盐溶液中的水合和分解过程,测定了水合物分解后的盐度变化。结果表明,HCFC-141b在盐水中生成水合物的过程中,盐水的浓度对水合物生成的过冷度有一定影响,浓度太低或太高都对过冷度影响不大,1.0%的氯化钠可以有效减小过冷度。测量水合物分解后的水溶液发现盐度显著降低,用水合物的生成和分解可以达到海水淡化的目的。根据水合物的特点设计了水合物法海水淡化的试验装置,筛选了适用于该方法的水合物工质,其中乙烷为最好的水合物法海水淡化工质。通过计算发现加大气体流量、提高充气压力和改善生成条件可提高淡水产率,当50%的气体参加水合反应则淡水产率可提高到1.25L.min-1。
Hydrate formation and dissociation of HCFC-141b in sodium chloride solution were investigated. HCFC-141 hydrate was formed from the brine and separated from unreacted solution. The remaining water after hydrate dissociation has a significantly reduced salinity. A novel experimental system for seawater desalination was developed and the hydrate former was screened out in this system. Ethane is the best hydrate former and increasing the gas flow or gas pressure or improving the formation conditions can enhance the yield offresh water bycalculated the production rate offresh water.
出处
《水处理技术》
CAS
CSCD
北大核心
2010年第6期65-68,共4页
Technology of Water Treatment
基金
国家自然科学基金项目(50706056)
广东省科技计划项目(2009B030600005)
