H_2O-MgSO_4-C_3H_8体系中C_3H_8气体水合物分解动力学研究  

Decomposition kinetics of C_3H_8 gas hydrate in H_2O-MgSO_4-C_3H_8 system

作　　者：李国恩[1,2] 陈盼盼[1,3] 赵斌[1] 曹吉林[1] 

机构地区：[1]河北工业大学河北省绿色化工与高效节能重点实验室,天津300130 [2]中国核电工程有限公司河北分公司,河北石家庄050011 [3]天津市化工设计院,天津300131

出　　处：《河北工业大学学报》2013年第4期28-34,共7页Journal of Hebei University of Technology

基　　金：国家自然科学基金(21076057);中国科学院可再生能源与天然气水合物重点实验室开放基金(0907kl);长江学者和创新团队发展计划(IRT1059)

摘　　要：为了开发丙烷气体水合物法浓缩分离白钠镁矾的新方法,本文对H2O-MgSO4-C3H8体系中形成的C3H8气体水合物进行了分解的动力学研究,测定了加压276.15 K,279.15 K,281.15 K和283.15 K条件下,C3H8气体水合物分解过程中液相组成和气体水合物相组成及其夹带母液量的变化.依据实验数据建立了C3H8气体水合物分解动力学模型,模型计算值与实验值吻合良好,计算得出C3H8气体水合物分解的活化能为107.489 kJ/mol.In order to develop a new process for concentrating and separating the bloedite based on C3H8gas hydrate method, the decomposition kinetics of C3H8gas hydrate formed from H2O-MgSO4-C3H8system was investigated. Solution compositions and the change of the amount of entrained mother liquor in the decomposition process of C3H8gas hydrate were measured at 276.15, 279.15, 281.15 and 283.15 K and pressure. Based on the experimental data, the decomposition kinetics model of C3H8gas hydrate in the ternary system was established. The calculated values were in good agreement with the experimental data. The activation energy of decomposition reaction of C3H8gas hydrate was 107.489 kJ/mol.

关 键 词：气体水合物 硫酸镁 丙烷 分解动力学 速率常数 

分 类 号：O643.1[理学—物理化学]