Optimization and Modeling of Complete Removal of N-Compounds from Oil Cut Using Response Surface Methodology (RSM) by CuAlO2/ZSM-12&35 as a New Photocatalyst

In this study, immobilized cualo2 onto the zsm-12&35 composite was prepared and used as a photocatalyst to remove n-containing oil pollutants (carbazole) through advanced oxidation without the use of any oxidants. in this method, acetone is used as a reaction solvent that can be partially converted to fuel oxygenated compounds (octane enhancers) under an aldol condensation reaction. photocatalyst characterization was performed using x-ray diffraction (xrd), fourier-transform infrared (ftir) spectroscopy, field emission scanning electron microscopy (fesem), energy-dispersive x-ray spectroscopy (eds), mapping, and bet/bjh (brunauer-emmett-teller & barrett- joyner-halenda) techniques. the effect of operating parameters (pollutant concentration, catalyst dosage, and ph of the solution) on the efficiency of carbazole removal (model oil) was investigated through the rsm methodology. the removal products are identified by the gas chromatography (gc-ms) technique. the results indicated complete elimination of carbazole under ultraviolet light (uv light), as well as due to using uv light, the in-situ formation of typical fuel oxygenated compounds under aldol condensation among solvent molecules. accordingly, this new protocol can be utilized to refine fuel products accompanied by enhancing their octane numbers.the novelty of this work is the coexistence of zsm-12 and zsm-35 in the composite zsm-12&35 resulted from the exertion of a remarkable synergistic effect on oil pollutants (carbazole) removal through advanced oxidation.