Role of HY Zeolite Mesopores in Hydrocracking of Heavy Oils

Bio-oil from hydro-liquefaction of Dunaliella salina over Ni/REHY catalyst

“…The increasing of bio-oil yield could be attributed to the addition of Ni-base. Ni/REHY catalyst not only maintained the role of acid-cracking, but also had the function of hydrocracking (Yang et al, 1998;Sato et al, 2001;Alsobaai et al, 2007). Hydrocracking could be achieved under the reaction conditions, thus, it benefited the generation of intermediates and reduced the gas product yield, leading to the significant increasing of bio-oil yield.…”

Catalytic oligomerization of ethylene over Ni-containing dealuminated Y zeolites

“…There are well-documented reports about the formation and characterization of mesopores in dealuminated zeolites [16][17][18][19][20][21][22]. The favourable role of large pores of dealuminated Y zeolites was observed in various catalytic processes, such as hydrocracking of heavy oils [23], FCC [22], butylation of phenol [24], ethane ammoxidation [25], alkylation of biphenyl [26].…”

Influence of steam-calcination and acid leaching treatment on the VGO hydrocracking performance of faujasite zeolite

“…The resulting catalysts were sulfided and evaluated for their performance in the hydrocracking of a heavy VGO feedstock. As exemplified in literature [8,10,12,45,46], differences in catalytic activity in VGO hydrocracking can be related to the zeolite component as long as the other properties such as the hydrogenation function and catalyst loading are kept the same. To support this supposition, the final hydrocracking catalysts were characterized by nitrogen physisorption, UV-Vis DRS, Laser Raman spectroscopy (LRS) in calcined form and XPS surface (Tables S1 and S2 of supporting information).…”