Effect of operating conditions on HDS of CGO blended middle distillate

Detailed Characterization of Refractory Refinery Streams for Use as Feedstocks for Diesel Production in Low-Pressure Hydrotreating Units

“…HDS and aromatic saturation (HDA) reactions are known to occur in parallel and in a shared reaction environment, competing for the necessary resources, such as hydrogen and catalytic sites . There are studies that show that the aromatic content has a significant impact of inhibition on the activity of HDS and that the degree of inhibition depends on the number of fused rings, with higher numbers of fused rings leading to a greater degree of inhibition. ,− …”

“…Based on the above, there are conflicting conclusions about the influence of aromatics on the kinetics of HDS that question the mechanism by which aromatics influence HDS. What is evident is that the presence of aromatics indeed affects HDS, as it affects the overall sulfur removal and other conversions . It is also known that highly aromatic feedstocks, such as LCO and LCGO, are difficult to hydrotreat compared with conventional feedstocks, such as SRGO.…”

“…What is evident is that the presence of aromatics indeed affects HDS, as it affects the overall sulfur removal and other conversions. 15 It is also known that highly aromatic feedstocks, such as LCO and LCGO, are difficult to hydrotreat compared with conventional feedstocks, such as SRGO. Therefore, the aromatic content in the feedstock should be considered alongside other parameters, such as sulfur content and cetane index, when optimizing the HDS process.…”

Nanoparticle catalyzed hydrodesulfurization of diesel fuel in a trickle bed reactor: experimental and optimization study

“…They observed that the addition of magnesia and potash to the catalytic support decreases the total number of acid sites determined through TPD of NH 3 . Marafi et al 21 conducted a study at different hydrotreating operating conditions to convert sulfur, nitrogen, and aromatic compounds in a blend of fuel in fixed bed bench-scale reactor unit, using a commercial CoMo/Al 2 O 3 catalyst. They found that hydrodesulfurization (HDS) is selectively higher than hydrodenitrogenation (HDN) where hydrogenation played a crucial role in their selectivities at high conversion.…”