Microwave-induced catalytic oxidative desulfurization of gasoil fraction over phosphotungstic acid-based magnetic silica (Ni@SiO2\PWA) nanocatalyst

Nanocatalysts for Oxidative Desulfurization of Liquid Fuel: Modern Solutions and the Perspectives of Application in Hybrid Chemical-Biocatalytic Processes

“…It was noted (Tables 1 and 2), that while using pure H 2 O 2 even with the help of a 250 W high-pressure sodium lamp or microwave radiation the ODS takes longer time to reach acceptable desulfurization levels even at higher temperatures [61,65,71,74,75]. On the other hand, combining acetic acid with H 2 O 2 allows performing efficient ODS at temperatures as low as 35 • C.…”

“…Many NCs can be successfully separated from the reaction medium upon the completion of oxidation and extraction of the oxidized forms of sulfur, and can therefore be used for at least 3-5 cycles. This is an indisputably important feature when the perspectives of industrial application are considered [43,51,52,56,61,64,65]. For example, after the processes, the NCs can be separated with a simple filtration method, washed with ethanol or water and reused for several new runs [25].…”

“…For example, after the processes, the NCs can be separated with a simple filtration method, washed with ethanol or water and reused for several new runs [25]. Introduction of components with magnetic properties such as MnFe 2 O 4 and Fe 3 O 4 into the NCs extends the range of possibilities for complete extraction of the catalyst from the reaction system via using the magnetic field, thus preserving the NC for further re-use [25,65,75].…”

Experimental and theoretical study of deep oxidative desulfurization of Dibenzothiophene using Oxalate-Based catalyst

“…However, the energy requirement is comparatively high. For example, 94.5% and 93% of desulfurization was achieved at microwave power of 600 W and 540 W, respectively [7] , [8] . The application of microwave enhances the mass transfer rate through the temperature-induced diffusion phenomenon, in which the process of transport is driven by the temperature gradients in addition to the concentration [9] .…”

Preparation of V2o5 @Mesoporous Silica Sphere for Novel Dual Oxidativeadsorptive Desulfurization

“…Governments worldwide have noticed these concerns and have imposed new strict environmental regulations on fuel sulfur levels to minimize SOx emissions (15,16). Several approaches have been investigated to remove those heterocyclic sulfur compounds (14,(17)(18)(19)(20)(21)(22). The traditional fuel sulfur removal method is called hydrodesulfurization (HDS), a well-known catalytic process in the refining industry.…”