Resumen de An approach to H2S removal from light crude oils using synthetic scavengers based on long chain alkylated ionic liquids
A.A. Pasban, A.A. Miran Beigi, N. Hazrati
In this research, the effect of imidazolium based ionic liquids as scavengers on reducing and minimizing the amount of hydrogen sulfide in Iranian crude oils has been studied. To improve the quality of crude oil and increasing the value added of producing and exporting of crude oil, firstly, cold stripping was performed and effective parameters of process on the efficiency was investigated. In the next step, four imidazolium-based ionic liquid samples, were synthesized and their effects on reduction of H2S from four samples of Iranian light crude oils were tested. The design of the experiments and the results of the study were done using the software Minitab 14. For this purpose, the effect of the parameters of the ratio of scavenger concentration, temperature and contact time with crude oil on the reduction of H2S was studied. The results of the study show that ionic liquid scavenger yields a better efficiency; with optimal conditions (concentration of 1200 ppm, temperature of 45 ° C in 20 minutes of time) H2S reduces in crude oil from 550 to less than 15 ppm.
