Development of a Cosmo deep HDS catalyst for diesel fuel

Hydrodesulfurization of 4,6-dimethyldibenzothiophene over Pt, Pd, and Pt–Pd catalysts supported on amorphous silica–alumina

“…A positive influence of acid supports has been observed in many areas of catalysis. For instance, the hydrogenolysis of neopentane was faster over Pd supported on a zeolite than on alumina [44], small aromatic hydrocarbons were hydrogenated faster with increasing acidity of the support [10,[16][17][18][19][20][21]30,31,33,37,[45][46][47], and the HDS activity of Pt [7,9] and transition-metal sulfide catalysts increased with increasing support acidity [11,22,[48][49][50][51][52][53][54].…”

Influence of doping on the preferential growth of α-MoO3

“…With distinctive properties of electrochromism, thermochromism and photochromism as a smart material, gas sensor, catalyst and a host material for intercalation, MoO 3 has been extensively investigated over the past decades [1][2][3][4][5][6][7]. As a wide bandgap n-type semiconductor material, molybdenum trioxide has received considerable attention over the last few years because of its many applications in various fields [8].…”

“Nanowire catalysts for ultra-deep hydro-desulfurization and aromatic hydrogenation”

“…Then sulfur is then removed via hydrogenolysis of the C-S bond on the Ni x Zn y site. This accelerated pre-hydrogenation activity is critical in removing highly refractive sulfur compounds such as 4,6-DMDBT [8,38]. Fresh metal sites provide the suitable environment for the hydrogenation to occur first.…”

“…The refractory nature of b-DBTs comes from the steric hindrance around the sulfur atom [3,6]. The removal of these latter compounds presents a significant challenge to the industry [7][8][9][10]. The conventional hydro-desulfurization (HDS) process utilizes alumina-and silicasupported cobalt or nickel molybdenum catalyst and operate at 350-390 • C, and pressures between 60 and 90 bars [5].…”