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Petroleum

In this subdiscipline: 1,860 papers
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Popular papers

  1. Biomass has the potential to serve as a sustainable source of energy and organic carbon for our industrialized society. The focus of this Review is to present an overview of chemical catalytic transformations of biomass-derived oxygenated feedstocks…
  2. High-resolution scanning tunneling microscopy (STM) is used in combination with density-functional theory (DFT) to provide new insight into the morphology and atomic-scale structure of MoS2 nanoclusters in hydrodesulfurization (HDS) catalysts.…
  3. Single-layer MoS2 nanoclusters were synthesized on a Au substrate as a model system for the hydrotreating catalyst and studied by atomically resolved scanning tunneling microscopy (STM) in order to achieve atomic-scale insight into the interactions…
  4. We present density functional theory (DFT) calculations of reaction pathways for both the hydrogenation (HYD) and direct desulfurization (DDS) routes in the hydrodesulfurization (HDS) of thiophene over the different MoS2 edge structures, which will…
  5. Periodic effects form the basis for progress in understanding the role of structure/function relationships in hydrodesulfurization (HDS). Theoretical results of Toulhoat, and Raybaud et al. based on ab initio calculations using density functional…
  6. Impregnation of oxidic precursor with thioglycolic acid aqueous solution was successfully used to improve the performances of thiophene hydrodesulfurization catalysts. Raman, EXAFS and XPS studies indicate that addition of this chelating agent…
  7. The hydrogenation and hydrocracking performances of a series of MoNi/Al2O3 catalysts were evaluated with 4,6-dimethyl dibenzothiophene (4,6-DMDBT), 1-methylnaphthalene, pyridine, and hexadecane as model compounds. Different materials which involved…
  8. In this report, we have addressed the mechanism of reduction of sulfided ??-Al2O3 supported MoS2 catalytic nanoparticles by dihydrogen gas, starting from the state 100% sulfur covered and ending in 50% sulfur covered Mo-edges, with the production of…
  9. The performance of gas oil hydrodesulfurization catalysts was successfully improved through the modification of oxidic precursors with thioglycolic acid. XPS study indicates that addition of this chelating agent affects the sulfidation of the…
  10. The implementation of high-temperature two-dimensional gas chromatography (HT-2D-GC) represents an important advance for heavy petroleum fraction analysis. Offline liquid chromatography (LC) separation before HT-2D-GC was applied to different vacuum…

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