Because of the requirement for low sulfur content of fuel oils, it is necessary to develop alternative methods for desulfurization of heavy fuel oil. Due to the disadvantages of HDS technologies such as costs, safety and green environment, new methods have been developed. Among these methods is ultrasoundassisted oxidative desulfurization. Using ultrasound-assisted oxidative desulfurization, co...

Mesoporous silica pillared clay (SPC) incorporated with tungstophosphoric acid (HPW) has been synthesized via in situ introducing P and W source in the acidic suspension of the clay interlayer template during the formation of the silica pillared clay. The samples were characterized by XRD, XRF, FT-IR, TG-DTA, N(2) adsorption-desorption, and SEM techniques. The results showed that the HPW formed...

In the present paper, a gamma alumina (?-Al2O3) loaded zinc oxide (ZnO) nano-catalyst (ZnO/?-Al2O3) has been synthesized and used to accelerate removal of sulfur compounds from light gas oil by oxidative desulfurization (ODS) process. The nano-catalysts have characterized atomic force microscopy (AFM) Brunauer-Emmett-Teller (BET). ODS process conducted in batch reactor at various reaction tempe...

The problem of sulfur content in heavy oil is a challenge for researchers to meet the needs environmentally friendly fuels. catalyst preparation plays an important role desulfurization process. synthesis ZnO-activated carbon as and its activity oxidative (ODS) reaction has been successfully carried out. In this work, ZnO activated (AC) were blended by solid-solid reaction. ZnO, AC, ZnO-AC then ...

The widespread use of diesel fuel for transportation, industry, and electricity generation causes several environmental issues via an increase in the amount sulfur compound emissions. Commercial must be free sulfur-containing compounds since they can cause problems. Considering currently available processes to eliminate compounds, oxidative desulfurization (ODS) is one effective means this purp...

The increasing global population and the rapid industrial development associated therewith have increased demand for fossil-derived fuel oils. sources of fossil fuels are limited, many studies been being conducted to find alternative sources. Waste tire pyrolysis oil (WTPO) attracts considerable attention as an because its properties similar those diesel oil. However, WTPO has a high sulfur con...

Pyrolysis oil derived from waste tires consists of sulfur content in the range 7000 to 9000 ppm. For use diesel engines, its must be lowered 10 15 Though conventional hydrodesulfurization is suitable for removal tire pyrolysis oil, high cost provides an avenue alternative desulfurization technologies explored. In this study, oxidative (ODS), a low-cost technology, was explored oil. Two categori...

Inter-individual variability in weight gain and loss under energy surfeit and deficit conditions, respectively, are well recognized but poorly understood phenomena. We documented weight loss variability in an intensively supervised clinical weight loss program and assessed skeletal muscle gene expression and phenotypic characteristics related to variable response to a 900 kcal regimen. Matched ...

The "chlorination/fluorination" technique for aliphatic trifluoromethyl ether synthesis was investigated and a range of products with various functional groups was prepared. The results were compared with oxidative desulfurization-fluorination of xanthates with the same structure.