EFFECT OF THE SULFIDABILITY AND REACTION TEMPERATURE OF ACTIVATED CARBON SUPPORTED CoMo CARBIDE ON GLYCERYL TRIOLEATE DEOXYGENATION

Authors

  • Esneyder puello polo University of Atlántico image/svg+xml , Universidad del Atlántico image/svg+xml
  • Wendy Martinez Santiago Universidad del Atlántico, Grupo de Investigación en Oxi/Hidro-tratamiento Catalítico y Nuevos Materiales
  • Brando Martínez Hernández Universidad del Atlántico, Grupo de Investigación en Oxi/Hidro-tratamiento Catalítico y Nuevos Materiales.
  • Vanessa Sarmiento Ramos
  • Alberto Albis Arrieta

DOI:

https://doi.org/10.15665/rp.v18i2.2340

Abstract

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 Moδ+, Mo4+, Mo6+, Co2+, S2- and SO42-. 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 ºC, 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).

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Published

2020-08-27

Issue

Vol. 18 No. 2 (2020): Julio - Diciembre

Section

Articles

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Copyright (c) 2020 Esneyder puello polo, Wendy Martinez Santiago, Brando Martínez Hernández, Vanessa Sarmiento Ramos, Alberto Albis Arrieta

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