化工学报2019，Vol.70Issue(z1)：61-68,8.DOI:10.11949/j.issn.0438⁃1157.20181401
多苯环双子季铵盐在油水两相中的传质性能
Two-phase mass transfer of multi-benzene gemini quaternary ammonium salt in oil-water
摘要
Abstract
Distribution coefficients of two kinds of cationic gemini quaternary ammonium salt corrosion inhibitors (bi-PDTBP and PDTBP) between water and oil were measured by ultraviolet spectrophotometry, from which thermodynamic parameters were calculated. Effects of temperature, oil-water ratio, salt content, inhibitor concentration and time on the mass transfer between water and oil were systematically investigated. Finally, the corrosion inhibition performance of two corrosion inhibitors for Q235 steel in 1 mol/L hydrochloric acid was studied by weight loss experiments. Results showed that temperature and inhibitor concentration can promote the mass transfer of corrosion inhibitors between oil-water two phases, while oil-water ratio and salt concentration can hinder the mass transfer of corrosion inhibitors between oil-water two phases. The mass transfer process is spontaneous and endothermic reaction accompanied by an increase in entropy. In addition, as the concentration of two inhibitors increases, the corrosion inhibition efficiency increases gradually, and bi-PDTBP showed greater corrosion inhibition effect than PDTBP at high temperature.关键词
传质/界面/腐蚀/分配系数/缓蚀剂Key words
mass transfer/ interface/ corrosion/ distribution coefficient/ inhibitor分类
化学化工引用本文复制引用
张光华,董秋辰,刘晶..多苯环双子季铵盐在油水两相中的传质性能[J].化工学报,2019,70(z1):61-68,8.基金项目
陕西省教育厅重点实验室科研计划项目(14JS015) （14JS015）
