摘要
利用苯甲酰氯与咪唑啉中间体反应,合成了一种新型原油集输用苯甲酰胺-乙基-油酸咪唑啉缓蚀剂YSHSJ-2。利用表面张力仪研究了合成的缓蚀剂YSHSJ-2表面性能,利用失重法研究了缓蚀剂YSHSJ-2缓蚀效果的影响因素。结果表明,合成的缓蚀剂的cmc=48.87 g/L,γ_(cmc)=30.25 m N/m,θ=51.25°,Γ_m=504.54×10^(-8)mol/m^2,在30℃,4%HCl下,缓蚀剂浓度为100 mg/L时,缓蚀率高达87.69%。在相同的缓蚀剂浓度下,温度越高、盐酸浓度越大,缓蚀率逐渐变小,缓蚀效果变差。合成的缓蚀剂YSHSJ-2可以很好的吸附在集输设备及管道的表面,可有效地缓解集输设备及管道的腐蚀速率。
A novel used in crude oil gathering and transportation benzamide-ethyl-oleic acid imidazoline inhibitor YSHSJ-2 with the reaction of benzoyl chloride and imidazoline intermediate. The surface properties of YSHSJ-2 were studied by surface tension tester,and the influence factors of the inhibition effect of YSHSJ-2 were studied using the method of weight loss. The results showed that the cmc and γcmcof the synthesized corrosion inhibitor are 48. 87 g / L and 30. 25 m N / m,and the θ and Γ_m are 51. 25° and 504. 54 × 10^（- 8）mol / m^2. At 30 ℃ and 4% HCl,when the concentration of corrosion inhibitor is 100 mg / L,the corrosion rate is as high as 87. 69%. In the same corrosion inhibitor concentration,the higher the temperature and the hydrochloric acid concentration,the corrosion inhibition efficiency decreases gradually,and the corrosion inhibition effect becomes worse. The synthetic corrosion inhibitor YSHSJ-2 can be absorbed in the surface of gathering and transportation equipment and pipeline,and this can ease the corrosion rate of collection and gathering and transportation equipment and pipeline effectively.
出处
《应用化工》
CAS
CSCD
北大核心
2016年第8期1509-1511,1514,共4页
Applied Chemical Industry
关键词
CO2腐蚀
缓蚀率
乳化性
缓蚀剂
CO_2 corrosion
corrosion inhibition efficiency
emulsifying property
corrosion inhibitor
