Performance enhancement of adsorption desulfurization process via different new nano-catalysts using digital baffle batch reactor and mathematical modeling

• Published in: Chemical engineering science 2021-03, Vol.232, p.116384, Article 116384
• Main Authors: Nawaf, Amer T., Hamed, Hussein H., Hameed, Shymaa Ali, Jarullah, Aysar T., Abdulateef, Layth T., Mujtaba, Iqbal M.
• Format: Article
• Language: English
• Subjects: Adsorption desulfurization; DBBR; H2O2; Mathematical model; Nano catalyst
• ISSN: 0009-2509; 1873-4405
• DOI: 10.1016/j.ces.2020.116384

•Several new homemade Synthetic Nano-Catalysts are designed for ADS process.•A novel DBBR is designed to evaluate the performance of the catalysts prepared.•ODS process is employed under mild conditions to reduce sulfur compound.•The best kinetic models related to the relevant reactions have investigated here. Several new homemade nano-catalysts are prepared here to reduce sulfur compound found in light gas oil (LGO) utilizing the adsorption desulfurization technique. The effect of different support materials (Fe2O3, Cr2O3 and CdO) having the same particle size (20 nm) on the adsorptive desulfurization performance for loading 5% nickel sulfate (5 wt%NiO) as an active component for each catalyst, is studied. Oxidative desulfurization process (ODS) in a novel digital baffle batch reactor (DBBR) is used to evaluate the performance of the catalysts prepared. Moderate operating conditions are employed for the ODS process. The efficient new nano-catalysts with for the removal of sulfur are found to be 93.4%, 85.6% and 62.1% for NiO/Fe2O3, NiO/Cr2O3 and NiO/CdO, respectively at 175 °C, 75 min and 2 ml of H2O2. The best kinetic model and the half-live period for the nano-catalysts related to the relevant reactions have also been investigated here.