GIEC OpenIR  > 中国科学院广州能源研究所
Alternative TitleOnline measurement of tetra-butyl ammonium bromide concentration in hydrate slurry by electric conductivity
方洁1,2; 李小森1; 陈朝阳1; 张郁1; 夏志明1; 颜克凤1
Source Publication化工进展
Other AbstractThe quick measurement of tetra-butyl ammonium bromide (TBAB) hydrate crystal concentration is important to the control of the hydrate slurry production and the kinetics studies of TBAB hydrate formation and dissolution. In this paper, the effects of temperature, TBAB concentration and TBAB hydrate solid content on the electric conductivity of TBAB hydrate slurry was studied through online electric conductivity measurement. A method was established to quickly measure the concentration of TBAB solution and TBAB solid hydrate content in hydrate slurry. An industrial scheme was proposed for TBAB solution concentration and TBAB hydrate solid content quick measurement online during TBAB hydrate slurry production. The electric conductivity of TBAB solution increases linearly with the temperature rise and decreases with the solid hydrate content augment. The dissociation degree of TBAB solution decreased with the rise of TBAB concentration. At a low TBAB concentration range (〈0.54mol%), the electric conductivity of TBAB solution increases linearly with the TBAB concentration rise, and at a high TBAB concentration range ( 〉 0.54mol%), the electric conductivity of TBAB solution increases slowly and reaches a maximum value due to the significantly reduction of TBAB dissociation degree. The maximum relative error between the TBAB measurement concentration and actual value is about 9.0%, indicating reliability of the method.
Keyword水合物 结晶 电导率 固含量 电解质 溶液浓度 hydrate crystallization electric conductivity solid content electrolytes solution concentration
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Document Type期刊论文
Corresponding Author陈朝阳
First Author Affilication天然气水合物
Recommended Citation
GB/T 7714
方洁,李小森,陈朝阳,等. 四丁基溴化铵水合物浆液浓度电导率法在线测定[J]. 化工进展,2017,36(6):2038-2044.
APA 方洁,李小森,陈朝阳,张郁,夏志明,&颜克凤.(2017).四丁基溴化铵水合物浆液浓度电导率法在线测定.化工进展,36(6),2038-2044.
MLA 方洁,et al."四丁基溴化铵水合物浆液浓度电导率法在线测定".化工进展 36.6(2017):2038-2044.
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