Carbon versus alumina as a support for Co–Mo catalysts reactivity towards HDS of dibenzothiophenes and diesel fuel

Liquefaction of Municipal Waste Plastics over Acidic and Nonacidic Catalysts

“…Activated carbon catalysts, which are neutral, can be considered as an alternative catalyst for hydrocracking of heavy oils derived from waste plastics. In recent years, carbon has received much attention as a support for hydrodesulfurization (HDS) catalysts as high HDS activities have been reported [27,28], which may be due to more favorable support/catalytic species interactions. In addition, activated carbon catalysts have many other interesting features such as high surface areas with controlled pore volume and pore size, reduced coking activity and controllable surface functionality.…”

35S Tracer Study of the Effect of Support on the Nature of the Active Sites of Co(Ni)Mo Sulphide Catalysts Supported on Al2O3and Activated Carbon

“…If we put (3) into (5) and make some simple transformations we obtain: (6) We assumed that the maximum amount of mobile sulfur (S mob ) on the catalyst is about 40% of the stoichiometric amount of sulfur. This assumption is based on the results of our previous studies [29].…”

“…Hydrotreating catalysts prepared by loading activated carbon with an active phase (C-supported catalysts) are more active than conventional systems based on Al 2 O 3 or SiO 2 [1][2][3][4][5][6][7][8][9]. After the service life of a C-supported catalyst is over, the metals of the active phase can be recovered by burning out the support and then reused.…”

Visible light photocatalytic properties of novel molybdenum treated carbon nanotube/titania composites

“…Recently, carbon supported catalysts have attracted increasing attention (Farag et al 1999;Li et al 2001;Fu et al 2004;Oh et al 2007;Yang et al 2007;Oh and Chen 2008;Zhang et al 2008Zhang et al , 2009. Carbon nanotubes (CNTs) are a type of novel carbon material with unique mechanical and electronic properties (Dai et al 1996;Zhang et al 1999), which can be regarded as hollow graphite fibre with a perfect structure, such as seamless tube-like graphitic walls consisting of sp 2 carbon-carbon atoms, nano-sized hollow channels, excellent electron-transporting capability as well as convertible surface properties that can be modified easily.…”