نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه مهندسی شیمی، دانشکده انرژی های تجدید پذیر، دانشگاه صنعتی ارومیه، ارومیه
2 گروه مهندسی شیمی، دانشکده انرژی های تجدید پذیر، دانشگاه صنعتی ارومیه
3 گروه شیمی، دانشکده انرژی های تجدیدپذیر، دانشگاه صنعتی ارومیه، ارومیه
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In this study, for the first time, the effect of vitamin E and vitamin A palmitate on the asphaltene precipitation inhibition was investigated. These compounds can be used as an option in the asphaltene stabilization due to their amphiphilic structure with a polar head and a long alkyl chain. After the addition of vitamin A palmitate and vitamin E in different concentrations to the asphaltene in toluene solution, precipitation tests were performed using normal heptane. According to the results, the phenolic structure and OH functional groups of vitamin E form π-π and hydrogen bonds with polar parts and polyaromatic core of the asphaltene which results in the inhibition of asphaltene. While vitamin A palmitate was recognized as an asphaltene precipitation agent due to its non-polar structure. The inhibition effect of the additive depends on the type of asphaltene.The results indicate that an increase in the asphaltene aromaticity increases the π-π interaction between vitamin E and asphaltene which increases the asphaltene stability.
کلیدواژه‌ها [English]
)