عنوان مقاله:

نویسندگان:

رضا نصرتی، علی اصغر پاسبان، محمدرضا احسانی، علی اکبر میران بیگی

Sulfur-containing compounds in middle distillate fuels are known to have negative impacts on the environment because of SOx emission from their combustion exhaust products. In order to control and monitoring sulfur compounds a variety of removal techniques are available that well documented in the literature . Among different desulfurization methods, ADS selective process is mainly considered as an appropriate approach for desulfurization, mainly due to its low energy consumption and cost and high efficiency. In recent years, metal-organic frameworks (MOFs) and Zeolitic imidazolate frameworks (ZIFs) have shown better chemical and thermal stability compared with other adsorbent . In the present work, the adsorbent ZIF-8 is used to reduce DBT in a model and real gas oil fuel synthesized in a mild condition. To evaluate the efficiency and removal capacity of ZIF-8 adsorbent, various factors such as the amount of adsorbent, time and temperature have been investigated. Structural characterization was performed by XRD, FT-IR, and BET. Studies were performed and complete desulfurization of model fuel was found after 4 h using 0.8 g of adsorbent at 50 ◦C, instead of the 105 mgS/g adsorption capacity of desulfurization obtained with the fresh ZIF-8 in the model fuel solution of DBT at 120 ppm. Moreover, the good selectivity of ZIF-8 indicated the absorption on non-saturation centers around Zn metal. The ZIF-8 reacted well to its excellent recycling capability to remove DBT under mild conditions until 4 times.

Adsorption، Desulfurization، Zeolitic imidazolate frameworks، Dibenzothiphene

برای لینک‌دهی به این مقاله از آدرس زیر استفاده نمایید:

برای ارجاع در منابع از عبارت زیر استفاده کنید:
نصرتی، رضا، اصغر پاسبان، علی، احسانی، محمدرضا، اکبر میران بیگی، علی، 1402، Removal of Dibenzothiophene from model diesel oil by adsorptive desulfurization using ZIF-8، بیست و دومین کنفرانس شیمی معدنی ایران، https://conference.uok.ac.ir/fa/archive_index.php?c=HN-iicc22&aid=1517823