Synthesis of magnetic nanoparticles ZIF-۸ to immobilize in ionic liquid forthe adsorptive desulfurization of gas oil

Over the past decades, the desulfurization of fuel oils has been known as one of the mostchallenging processes in petroleum refineries due to economic considerations. The presence ofsulfur compounds results in SOx emissions detrimentally affecting the equipment of refineries, theenvironment, and human health [۱]. Due to the presence of unique characteristics, nanoparticlesare used specifically as adsorbents, and in the meantime, magnetic separation has created apromising solution in the separation issue [۲]. In the present work, by immobilize ionic liquid ۱-Buty l-۳-methylimidazolium methyl sulfate ([BMIM] [Me SO۴]) on the surface of Fe۳O۴@ZIF-۸,a magnetic nano adsorbent was prepared to remove a mixture of gas oil sulfur. The structure of thenano adsorbent was investigated by different methods such as SEM, XRD and FTIR. The mainfactors on the performance of nano adsorbent were optimized and under optimal conditions, ۹۰%of sulfur in model oil was reduced during four stages. The optimal temperature was ۷۰ ◦C, optimalvolume ratio(adsorbent/oil) was ۱:۶. It is possible to recycle and reuse this nano adsorbent for fourconsecutive cycles

کلیدواژه ها:

Adsorption ، Desulfurization ، Ionic liquid ، Magnetic nanoparticle ، ZIF-۸