Influences of the Hydrogen Sulfide Partial Pressure and of a Nitrogen Compound on the Hydrodeoxygenation Activity of a CoMo/Carbon Catalyst

Synthesis of Transportation Fuels from Biomass: Chemistry, Catalysts, and Engineering

“…[215][216][217][218][219] The model feedstock was a mixture of 4-methylacetophenone, ethyldecanoate, and guaiacol as shown in Figure 20. The ketone group is easily and selectively hydrogenated into a methylene group above 200°C.…”

Hydrodeoxygenation of model compounds and catalytic systems for pyrolysis bio-oils upgrading

“…Besides, the basic support promotes formation of short edge-bonded MoS 2 slabs (with Lewis acid on each edge plane) and thus increases the edge plane area suitable for the promotion by Ni or Co [99]. [48,168].…”

Perspectives of Ionic Liquids Applications for Clean Oilfield Technologies

“…Environmental regulations have been modified to allow that lower levels of sulfured compounds to be ejected to the atmosphere. Industrially, the removal of organosulfur and organonitrogen compounds in fuel oils is being carried out by means of a simultaneous hydrodesulfurization (HDS) and hydrodenitrogenation (HDN) process at around 350 °C using catalysts based on CoMo or NiMo, which involves the C-S and C-N bond cleavage to produce H 2 S and NH 3 , respectively (Zaczepinski, 1996, Kabe et al, 1999Ferrari et al, 2001;Caeiro, et al, 2007). Deep desulfurization of diesel fuels is particularly challenging due to the difficulty of reduce aromatic sulfur compounds, particularly 4,6-dialkyldibenzothiophenes, using conventional hydrodesulfurization processes (HDS).…”