In this work, CoMoS catalysts were synthesized onto porous alumina spheres obtained using Pluronic P-123 (PS) or urea (US) and used as bifunctional nanomaterials for two energy applications: hydrodesulfurization storage. For the first application, assessed in a reactor model sulfur molecules, dibenzothiophene 4,6-dimethyl dibenzothiophene, well feeding heavy oil fraction. The results indicated ...

Desulfurization protein named DszC from Rhodococcus erythropolis is the key enzyme for biodesulforization of dibenzothiophene (DBT) in 4S pathway, which is a pathway with four enzymes. DszC enzyme biodesulfurizes DBT and its derivatives in oil components and biphasic systems. It functions well at the oil- water interface. In this study point mutation performed in DszC enzyme regarding to increa...

Petroleum contains many heterocyclic organosulfur compounds refractory to conventional hydrodesulfurization carried out with chemical catalysts. Among these, dibenzothiophene (DBT) and DBTs bearing alkyl substitutions are representative compounds. Two bacterial strains, which have been identified as Paenibacillus strains and which are capable of efficiently cleaving carbon-sulfur (C--S) bonds i...

[reaction: see text] Photolyses of dibenzothiophene sulfoxides (DBTOs) with intramolecular trapping functionalities attached in the 4-position show higher quantum yields of deoxygenation. Deoxygenation quantum yields are also less solvent dependent for the substituted DBTOs. Product analysis shows a detectable amount of intramolecular O-trapped products and suggests that solvent effects observe...

A DBTS-imprinted chitosan hydrogel (IHDBTS) was synthesized by cross-linking of chitosan with glutaraldehyde in the presence of dibenzothiophene sulfone (DBTS) as the template. An increase in cross-linker induced a major adsorption of DBTS until a plateau was reached at a ratio of 2.0 mol of glutaraldehyde per mole of glucosamine. The IHDBTS was found to be stimuli-responsive with temperature a...

AIM-X catalysts were successfully obtained by depositing MoS2 within NU-1000 through ALD. The conversion rate of the AIM-60 is much better than that traditional MoS2/γ-Al2O3, and it can directly convert dibenzothiophene to biphenyl.