Room temperature imidazolium-based ionic liquids as scavengers for hydrogen sulfide removal of crude oil

Publish Year: 1398
نوع سند: مقاله ژورنالی
زبان: English
View: 542

This Paper With 12 Page And PDF Format Ready To Download

  • Certificate
  • من نویسنده این مقاله هستم

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این Paper:

شناسه ملی سند علمی:

JR_AMECJ-1-1_002

تاریخ نمایه سازی: 3 اسفند 1398

Abstract:

Determination of H2S amounts in crude oil was performed by a precise method instead of UOP163 that were developed in our pervious works. Evaluation of ILs and scavengers were done by two ways. The first one was based on variable concentration of ILs as the scavenger (dynamic method), and the second one was based on a constant concentration of the scavenger during H2S removal process (static method). In the static method, design of experiments was performed for all three tested ILs and three parameters such as time, temperature, and dosage (injection volume) of ILs were investigated. A wide range of time and temperature was also studied according to operating conditions in petroleum terminals. The dose of ILs was obtained from the dynamic method. According to the obtained results, these ILs had a significant effect on H2S reduction in crude oil, so that H2S concentration in some conditions was less than 1 ppm. In comparison between ILs and commercial scavengers’s performance can be properly understood that not only ILs reduced H2S concentration, but also their dosage was very low, and mole ratio of [IL]/[H2S] was 1:3 that it was negligible compared withcommercial scavengers. Also the results showed that [EMIM][NTf2] was more effective than the other ILs in H2S removal.

Authors

Ali Akbar Miran Beigi

Research Institute of Petroleum Industry, West Blvd. of Azadi Sport Complex, Tehran, Iran

Maryam Yousefi

Research Institute of Petroleum Industry, West Blvd. of Azadi Sport Complex, Tehran, Iran, Department of Chemistry, Amirkabir University of Technology, P.O. Box ۱۵۸۷۵-۴۴۱۳, Tehran, Iran

Majid Abdouss

Department of Chemistry, Amirkabir University of Technology, P.O. Box ۱۵۸۷۵-۴۴۱۳, Tehran, Iran