高压低温条件下H2O-H2O2-CO2三元体系相平衡研究Study on the Phase Equilibrium of the Ternary System H2O-H2O2-CO2 at High Pressure and Low Temperature
曹吉林,刘海彬,郭康宁,罗鹏
摘要(Abstract):
为了探索气体水合物法浓缩低浓度过氧化氢水溶液的新方法,在高压低温条件下,对H2O-H2O2-CO2三元体系形成气体水合物的相平衡进行了研究。测定了不加表面活性剂和添加表面活性剂时低浓度过氧化氢水溶液中形成气体水合物的温度和压力条件,得出随着过氧化氢浓度和温度的升高,气体水合物的平衡压力也增高,不加表面活性剂时自然沉降分离所得气体水合物母液夹带量很高,而加入表面活性剂时则会降低形成水合物的压力,并且形成的气体水合物母液夹带量显著降低。此外,论文还依据Chen-Guo模型对H2O-H2O2-CO2三元体系形成水合物的相平衡压力进行了计算,计算值与实验值吻合良好。
关键词(KeyWords): 相平衡;气体水合物;过氧化氢;二氧化碳;Chen-Guo模型
基金项目(Foundation): 国家自然科科学基金项目(20676025);; 河北省自然科学基金资助项目(B2008000033)
作者(Author): 曹吉林,刘海彬,郭康宁,罗鹏
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