Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Sulfur or sulfur containing component
Reexamination Certificate
2011-06-28
2011-06-28
Mayes, Melvin C (Department: 1732)
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Sulfur or sulfur containing component
C502S415000
Reexamination Certificate
active
07968069
ABSTRACT:
A catalyst for hydrotreating, especially hydrodesulfurization, of residua and heavy crudes is prepared by synthesizing the support from titanium and boehmite, to form either a titanium/alumina support (TiO2/Al2O3) or a titanium-alumina support (TiO2—Al2O3) that is thereafter provided with at least one hydrogenating metal from group VIB in oxide form and a promoter from group VIII also in oxide form. The (TiO2/Al2O3) support is prepared from boehmite, which is peptized by using an inorganic acid, then extruded, calcined and impregnated with a solution containing titanium, while the (TiO2—Al2O3) support is prepared by admixing boehmite with a titanium-containing solution, peptized using an inorganic acid, extruded and calcined to obtain the titanium-alumina support.
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Alonso Martínez Fernando
Ancheyta Juárez Jorge
Maity Samir Kumar
Ramírez Solis Jorge Fernando
Rana Mohan Singh
Davis Sheng H
Instituto Mexicano del Petroleo
Mayes Melvin C
Roylance Abrams Berdo & Goodman L.L.P.
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