Efecto De La Sulfuración y La Temperatura De Reacción De Carburo De Como Soportados Sobre Carbón Activado En La Desoxigenación De Trioleato De Glicerol.

Cobalt molybdenum carbide supported on activated carbon was synthesized and the effect of sulfiding in catalytic activity of the glycerol trioleate deoxygenation process (DOX) was evaluated. Prior to glyceryl trioleate deoxygenation reactions, the catalyst was reduced and sulfided with CS2/H2. CoMo/CA carbide was characterized by specific area (B.E.T), X-ray diffraction (DRX), elemental analysis (CHON-S), potentiometric titration with butylamine and X-ray photoelectron spectroscopy (XPS). The surface area of the CoMo/CA carbide and the support were 246 m2/g and 881 m2/g, respectively. The XRD analysis verified the presence of the Co6Mo6C2 and metallic cobalt. XPS showed the presence at the surface of signals assignable to Mod+, Mo4+, Mo6+, Co2+, S2- and SO4 2-. The sulfided CoMo/CA carbide showed higher glyceryl trioleate deoxygenation activity than the no sulfided CoMo/CA carbide. The highest yield was obtained at 310 °C, 900 psi H2 and 2 h of reaction (conversion to 100%) and a higher selectivity to heptadecane (55%) and octadecane (45%), favoring the decarboxylation (HDCX) and decarbonylation (HDCn) than the hydrodeoxygenation (HDO). [ABSTRACT FROM AUTHOR]