Ultrasound assisted desulfurization of fuel oil with choline chloride based deep eutectic solvent and magnetic NaY zeolite using artificial neural network
محل انتشار: بیستمین کنگره شیمی ایران
سال انتشار: 1397
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 235
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شناسه ملی سند علمی:
IRANCC20_179
تاریخ نمایه سازی: 28 اردیبهشت 1398
چکیده مقاله:
The increasing trend of respiratory, digestive, and dermatological problems is the result of environmental exposure to sulfur dioxide gases (SOx), especially sulfur dioxide (SO2) [1]. These gases are the main source of acid rain and air pollution, result from the conversion of fuels containing sulfur compounds in combustion engines. Therefore, some serious regulations were arranged for the amount of sulphur compound in fuel. The simplest way to decrease the amount of SO2 emitted into the air is to reduce the amount of sulfur in fuel. Different methods such as hydrodesulfurization (HDS), extractive desulfurization, oxidative desulfurization, adsorptive desulfurization have been used to reduce sulfur content in fuels. Adsorption is an attractive process for desulfurization of transportation fuels due to high efficiency, lower temperature and pressure, simple and easy regeneration of sorbent [2]. In this research study, a combination of magnetic NaY zeolite and choline chloride based deep eutectic solvent (DES) and magnetic NaY zeolite were synthetized and applied for desulfurization of dibenzothiophene in n-hexane. The synthetized DES was characterized with NMR and IR. Magnetic NaY zeolite was also characterized with IR and SEM. The effect of influential parameters of temperature, time, amount of sorbent, and amount of extraction solvent were investigated. Under optimum conditions of 25 °C, 10 min, 50 mg, and 75 μL for temperature, time, amount of sorbent, and amount of extraction solvent respectively, the maximum desulfurization (%) of 94.5 was obtained which showed high potential of the proposed process in desulfurization process.
نویسندگان
Mahboube Shirani
Department of Chemistry, Faculty of Science, University of Jiroft, Jiroft, P. O. Box ۷۸۶۷۱۶۱۱۶۷, Iran.