摘要
为探究油品中非烃化合物对滤材聚结性能的影响,在固定含水量1000*10-6(wt)的油水乳状液中添加不同浓度的苯酚,研究亲油疏水滤材的除水效率及过程压降。结果表明,实验过程中滤材的压降有3个阶段:油品对滤材的润湿及水膜初步形成、滤材中水膜形成并稳定、水珠脱落与聚结的动态平衡。随苯酚浓度增加,滤材从疏水态经过渡态逐渐转变为亲水态,苯酚与水摩尔比约为1:3.3时,疏水态向过渡态转变,苯酚与水摩尔比约为1:1.6时,过渡态向亲水态转变,C6H6O(H2O)2是苯酚-水团簇最稳定的结合方式。
In the fields of aerospace, refinery and hydraulic system, moisture in oil should be controlled within a certain range. Oil-water coalescing separator is an effective method to remove water from oil, but in some areas, the oil usually contains non-hydrocarbon components that affect filtration efficiency. In order to explore the influence of non-hydrocarbon compounds in oil on the coalescing properties of filter media, influence of phenol concentration on efficiency and pressure drop of oleophilic-hydrophobic filter material were studied experimentally by adding phenol of different concentrations to the emulsion of 1 000*10-6(wt) water content. The results showed that the pressure drop of the filter material in this experiment had three stages: oil wetting filter material and preliminary formation of water films, water film reaching steady state, droplet shedding and coalescence reaching the dynamic balance. With the increase of phenol concentration, the hydrophobic state of the filter material gradually changed to hydrophilic state, the filter material had undergone three stages: hydrophobic state, transition state and hydrophilic state. When the molar ratio of phenol to water was about 1:3.3, the hydrophobic state changed into transition state, when the molar ratio of phenol to water was about 1:1.6, the transition state changed into hydrophilic state. C6H6O(H2O)2 was the most stable structure of phenol combined with water.
作者
郭骥
姬忠礼
Ji GUO;Zhongli JI(Department of Mechanical and Transportation Engineering,China University of Petroleum,Beijing 102249,China;Beijing Key Laboratory of Process Fluid Filtration and Separation,China University of Petroleum,Beijing 102249,China)
出处
《过程工程学报》
CAS
CSCD
北大核心
2019年第6期1143-1152,共10页
The Chinese Journal of Process Engineering
基金
国家自然科学基金资助项目(编号：51376196)
关键词
油水分离
苯酚浓度
亲水态
疏水态
过程压降
苯酚水团簇
oil water separation
phenol concentration
hydrophilic state
hydrophobic state
process of pressure drop
phenol water cluster
