نتایج جستجو برای: hydrodesulfurization

تعداد نتایج: 457  

F. Nazari J. Raheb ME. Kefayati

    Combustion of sulfur components of fossil fuels such as oil causes the emission of SO2 in the atmosphere and lead to the formation of acidic rain in the environment. The conventional approach for desulfurization of fossil fuels is the chemical procedure of hydrodesulfurization (HDS). However, this method has low efficiency for desulfurization of ring components of sulfur such as dibenzothio...

Journal: :Catalysis Today 2021

Mesostructured titania as support for the CoMoS active phase in deep hydrodesulfurization (HDS) of 4,6-dimethydibenzothiophene (4,6-DMDBT) leads to an increase intrinsic HDS activity and a higher selectivity direct desulfurization (DDS) reaction contrast with conventional CoMoS/alumina catalyst. The temperature treatment mesostructured TiO2 support, modifies catalyst’s transformation 4,6-DMDBT....

Journal: :Applied Catalysis A-general 2021

Catalytic performances of promoted CoMoS catalysts were greatly improved via a synthesis strategy based on the structuration active phase using self-assembled PANI (Polyaniline) nanowires followed by an addition step cobalt acetylacetonate oxidic or sulfided Mo-based hybrids. Taking into account different promotion levels, slabs lengths determined XPS and TEM, highest rate constants normalized ...

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