| Autor: |
Noori, Wallaa A., Hantosh, Ahmed A., Al-Sheikh, Farooq, Abdul Razak, Adnan A., Shakour, Zaidoon M. |
| Zdroj: |
Chemistry Africa; 20240101, Issue: Preprints p1-10, 10p |
| Abstrakt: |
In this study, the combined methods using the oxidant and surfactant were utilized in reducing the sulfur content of the actual light distillate. The parameters in the oxidation of sulfur compounds were optimized statistically according to the response surface method (RSM) based on central composite design (CCD). Surfactants separated the oxidized sulfur components at optimum conditions. Basra light distillate was taken as a raw material for oxidation by hydrogen peroxide (H2O2) as an oxidant and acetic acid as a catalyst at a 2:1 ratio. The optimum conditions for oxidation and suitable surfactant type were studied. A remarkable 42.88% extent of oxidation desulfurization at optimum conditions with an oxidant percent of 19.99 wt% and a temperature of 48.6 °C at 87.8 min was achieved. The nonionic surfactant Tween 80 had higher desulfurization activity and reduced sulfur content to 68.6%. Cyclic ring sulfur compounds’ desulfurization rate increased after treatment with a surfactant. In contrast, oxidation desulfurization effectively removes non-cyclic sulfur compounds. The light distillate quality was studied by GC, and IREX tests after desulfurization steps were found less affected by the treatment. |
| Databáze: |
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