Abstract
In this work, polyacrylamide (PAM) was first used in the loading of heteropoly acids, and then the HPM/PAM-n catalyst was synthesized by simple reaction. The FTIR and SEM measurements showed that the HPM/PAM-n (n = 10,000, 20,000, 30,000) was successfully synthesized. In addition, the HPM/PAM-n effect on desulfurization was measured, which showed the optimal desulfurization efficiency. The optimal process condition for HPM/PAM-10000 desulfurization was optimized by a single-factor experiment. The optimal condition was as follows: The temperature was 60 °C, the amount of the catalyst was 0.2 g, the oxygen to sulfur ratio was 16, and the reaction time is 100 min. The catalyst was suitable for recycled use, and the desulfurization efficiency was high after 10 times. In the end, the oxidative desulfurization mechanism was put forward.
Highlights
IntroductionFossil fuels have played an important role in global industrial production
In recent years, fossil fuels have played an important role in global industrial production
The catalyst was suitable for recycled use, and the desulfurization efficiency was high after 10 times
Summary
Fossil fuels have played an important role in global industrial production. (HDS) is the most effective method of removing mercaptans and thioethers. In order to solve these problems, non-HDS methods were put forward, such as oxidative desulfurization (ODS) [3,4], extractive desulfurization (EDS) [5,6,7] and adsorption desulfurization (ADS) [8,9,10]. The results showed PdO/SiO2 @GO had higher adsorption performance for thiophene than PdO/SiO2. Carla et al [12] studied the effect of bio-based chitosan and cellulose ionic liquid gels on fuel desulfurization, and the results showed that the bio-based polymer had a high desulfurization removal efficiency for thiophene and dibenzothiophene. Wang et al [13] studied the polyoxometalate-based catalyst [MIMPs]3 PMo6 W6 O40 synthesis and characterization, and the results showed that all dibenzothiophene in the model oil could be removed at a low O/S ratio. Su et al [14] studied the
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