Systematic Assessment of Visible-Light-Driven Microspherical V2O5 Photocatalyst for the Removal of Hazardous Organosulfur Compounds from Diesel

Abstract

The organosulfur compounds present in liquid fuels are hazardous for health, asset, and the environment. The photocatalytic desulfurization technique works at ordinary conditions and removes the requirement of hydrogen, as it is an expensive gas, highly explosive, with a broader flammability range and is declared the most hazardous gas within a petroleum refinery, with respect to flammability. The projected work is based on the synthesis of V2O5 microspheres for photocatalytic oxidation for the straight-run diesel (SRD) and diesel oil blend (DOB). The physicochemical properties of V2O5 microspheres were examined by FT-IR, Raman, UV-vis DRS, SEM, and Photoluminescence evaluations. The as-synthesized photocatalyst presented a trivial unit size, a narrow bandgap, appropriate light-capturing capability, and sufficient active sites. The desulfurization study discovered that the anticipated technique is substantial in desulfurizing DOB up to 37% in 180 min using methanol as an interfacing agent. Furthermore, the outcome of employing a range of polar interfacing solvents was examined, and the 2-ethoxyethanol elevated the desulfurization degree up to 51.3%. However, the anticipated technology is constrained for its application in sulfur removal from SRD. Additionally, the mechanism for a photocatalytic reaction was seen in strong agreement with pseudo-first-order kinetics. The investigated photocatalyst exhibited a compromised recyclability and regeneration tendency.

Highly Efficient Catalytic Oxidative Desulfurization of Gasoline Using PMnW11@PANI@CS as a New Inorganic–Organic Hybrid Nanocatalyst

“…In the first stage, sulfur compounds are oxidized and transformed into the corresponding sulfones via the oxidation of sulfur-containing molecules. The second step is the removal of oxidized sulfur compounds, in which the elimination properties of oxidized sulfur compounds in contrast to nonoxidized sulfur compounds are investigated. − Recent studies on nanocatalytic oxidative desulfurization (NODS) demonstrate that this method is currently being considered by researchers. − …”

A Short Review of Aerobic Oxidative Desulfurization of Liquid Fuels over Porous Materials

“…Most of the polar solvents are toxic, which undoubtedly increases the threats to environmental protection [44,45]. Alongside the environmental issues, the hydroperoxide also exhibit fire and explosion concerns [46]. An organic hydrogen peroxide, such as TBHP, CHP, etc.…”

Efficient Oxidative Desulfurization over [Mo8O26]4–-Based Hybrids: Phase Transfer Catalysis

“…6,7 More importantly, the potentially dangerous HDS technology demands enormous amounts of H 2 in extremely hostile environments. 8,9 To replace HDS, numerous desulfurization methods have been continuously researched to cut costs and improve safety, 10 for instance, oxidative desulfurization (ODS), 11−13 extraction desulfurization (EDS), 14 adsorption desulfurization (ADS), 15 biological desulfurization (BDS), 16 etc., of which the extraction-coupled oxidation desulfurization (ECODS) technique has been unveiled for broad future industrial application prospects. 17−19 In the ODS process, oxidants convert sulfur compounds in diesel to corresponding sulfoxides or sulfones.…”

“…The requirements for sulfur compounds in diesel have become more stringent as a result of the national standards for environmental regulations being upgraded in response to the more severe environmental challenges. − The primary industrial desulfurization technique, hydrodesulfurization (HDS), , which only effectively gets rid of aliphatic sulfides but not aromatic sulfides with high steric hindrance like dibenzothiophene (DBT) and its derivatives, refers to the process of removing sulfur compounds at high pressure and temperature. , More importantly, the potentially dangerous HDS technology demands enormous amounts of H 2 in extremely hostile environments. , To replace HDS, numerous desulfurization methods have been continuously researched to cut costs and improve safety, for instance, oxidative desulfurization (ODS), − extraction desulfurization (EDS), adsorption desulfurization (ADS), biological desulfurization (BDS), etc., of which the extraction-coupled oxidation desulfurization (ECODS) technique has been unveiled for broad future industrial application prospects. − In the ODS process, oxidants convert sulfur compounds in diesel to corresponding sulfoxides or sulfones . Deep desulfurization can be effortlessly achieved by extracting sulfones and sulfoxides with strong polarity by applying highly polar extractants …”