Hydrotreating or hydroprocessing refers to a variety of catalytic hydrogenation processes
which saturate unsaturated hydrocarbons and remove S, N, O and metals from different …

A series of activated carbons was prepared from coconut shell impregnated with phosphoric
acid using a one-step carbonization procedure and varying conditions in order to optimize …

Unsupported copper-aluminum and copper-chromium oxides were prepared by mixing
solutions of the nitrates and calcining at 1223 K, followed by treatment with washing …

Hydrotreating processes in petroleum refining were introduced more than 50 years ago for
the removal of sulfur and nitrogen. The sulfided cobalt-molybdenum catalyst, together with …

1H MAS NMR, 1H spin-echo MAS NMR with Al irradiation, 29Si MAS NMR, and 1H→ 29Si
CP MAS NMR were used to investigate the deposition of Mo and Ni species on the surface …

The thermochemical conversion of lignocellulosic biomass including lignin leads to the
generation of a complex mixture of oxygenated aromatic monomers. Further processing of …

Temperature-programmed reduction (TPR) has been employed to study Ni-Mo mixed oxides
which were previously used as model hydrodesulphurization (HDS) catalysts, using …

Mesoporous nanocrystalline γ-Al 2 O 3 powder with high specific surface area (> 220 m 2/g)
was prepared by a “solid state” method and employed as the support for nickel catalysts. Ni …

Experiments in which bulk MoO 3 has been diluted in silica or alumina reveal a “corrected”
TPR pattern in which the bulk oxide reduces at the same temperature as the supported …

NiMo/SiO 2 hydrodesulfurization catalyst prepared through the polyoxometalate route using
Keggin type phosphomolybdates has high activity in HDS of thiophene at 350–400° C and 1 …