Molybdenum sulfide/carbide catalysts
AssigneesBoard of Regents, The University of Texas System, Centro de Investigacion en Materiales Avanzados, S.C.
InventorsGabriel Alonso, Russell R. Chianelli, Sergio Fuentes, Brenda Torres
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Abstract
The present invention provides methods of synthesizing molybdenum disulfide (MoS2) and carbon-containing molybdenum disulfide (MoS2-xCx) catalysts that exhibit improved catalytic activity for hydrotreating reactions involving hydrodesulfurization, hydrodenitrogenation, and hydrogenation. The present invention also concerns the resulting catalysts. Furthermore, the invention concerns the promotion of these catalysts with Co, Ni, Fe, and/or Ru sulfides to create catalysts with greater activity, for hydrotreating reactions, than conventional catalysts such as cobalt molybdate on alumina support.
Claims23
A process for forming a carbon-containing molybdenum disulfide catalyst having a surface area larger than about 100 m2/g, comprising:
- (a) adding an organic thiomolybdate salt precursor to a solution;
- and
- (b) decomposing the precursor under hydrothermal conditions to form a carbon-containing molybdenum disulfide catalyst.
A process for forming a promoted carbon-containing molybdenum disulfide catalyst having a surface area larger than about 100 m2/g, comprising:
- (a) adding an organic thiomolybdate salt precursor to a solution;
- (b) decomposing the precursor under hydrothermal conditions to form a carbon-containing molybdenum disulfide catalyst;
- and
- (c) impregnating the molybdenum disulfide catalyst with a promoter salt.
Dependencies are inferred from the claim text.