Optimization of oxidative desulfurization of gas condensate via response surface methodology approach

Efficient Catalytic Oxidative Desulfurization toward Thioether and Sulfur Mustard Stimulant by Polyoxomolybdate–Resorcin[4]arene-Based Metal–Organic Materials

“…The effective removal of sulfur-based compounds from petroleum remains a serious environmental problem owing to the negative influence on the atmosphere and human health arising from their combustions. , As a result, it is an important process for desulfurization of transportation fuels in the case of safeguarding the environments. − In this regard, hydrodesulfurization (HDS) is considered to be the most commonly used industrial process for removing sulfur diesels, − while this technique is usually carried out under severe operating conditions with low desulfurization efficiencies. − Recently, alternative desulfurization approaches have been developed including oxidative desulfurization (ODS), − adsorption, − biodesulfurization, etc. Among them, ODS is regarded as the most promising technique for deep desulfurization of fuel. − In particular, the ODS method is greatly efficient for the removal of refractory aromatic sulfur-based species relative to HDS …”

Sonocatalytic oxidative desulfurization of diesel oil using a novel BiVO4/FeMn LDH nanocomposite

“…, where C o and C represent the sulfur content before and after UAODS treatment. The parameters such as the ultrasonic time (10-70 minutes), catalyst weight (0.003-0.03 g/15 ml), type of oxidant, H 2 O 2 /S molar ratio (4)(5)(6)(7)(8)(9)(10)(11)(12), the ratio of solvent/hydrotreated oil (0.5/1-2/1), and type of sonicator were studied based on the desulfurization treatment.…”

“…8 HDS is highly efficient to remove most aliphatic sulfides, such as mercaptan and thioether, with great efficiency, 9 but less effective for thiophenes and thiophene derivatives because the structural characteristics of these sulfur compounds are analogous to those of benzene fusedring compounds that are thermally stable and chemically inactive. [10][11][12] Accordingly, numerous unconventional desulfurization techniques such as biological, adsorptive, oxidative, and extractive desulfurization are proposed as alternatives to HDS. [13][14][15][16] Among these technologies, oxidative desulfurization (ODS) is regarded as one of the most favourable processes for deep desulfurization of fuels due to the moderate operating conditions (low temperature, atmospheric pressure), excellent desulfurization performance, cheap equipment, and ease of operation.…”

Efficient Oxidative Desulfurization by Calixarene-Supported “Pineapple-Like” Polyoxometalates

“…The calcination of sulfur-containing fuels can cause acidic pollution, posing threats to human health. − A series of strict fuel standards have been established in many countries and regions, requiring that the sulfur content should not exceed 10 ppm. Hence, the desulfurization of fuel oil has become an indispensable means of obtaining clean energy. − Currently, hydrodesulfurization (HDS) technology is commonly used in industry, but this technology requires strict reaction conditions, which poses a series of problems, such as huge investment and high operating costs, and is ineffective in removing refractory sulfur (e.g., DBT and its derivatives), so it is imperative to develop new deep desulfurization processes to replace HDS technology. − Among them, oxidative desulfurization (ODS) is considered one of the most perspective technologies for deep desulfurization due to the moderate reaction conditions and high desulfurization rates. , …”