HYDRODESULFURIZATION CATALYST FOR HYDROCARBON OIL AND METHOD FOR MANUFACTURING HYDRODESULFURIZATION CATALYST
FIG1 is a diagram showing ultraviolet-visible light diffused reflection spectra of inorganic oxide carriers in Example 1 and Comparative Example 3 
Further, the ultraviolet-visible light diffused reflection spectrum of the inorganic oxide carrier a was analyzed according to the following method. The analysis result is shown in FIG1. The absorption edge wavelength of the inorganic oxide carrier a was calculated from the analysis result, and was 346 nm. The ultraviolet-visible light diffused reflection spectrum of the inorganic oxide carrier h was analyzed by the same method as in Example 1. The analysis result is shown in FIG1. The absorption edge wavelength of the inorganic oxide carrier h was calculated from the analysis result, and was 365 nm.
diagram
8
group
7
pH became
5
being diluting TiO2 in width was set at
1
Example
400
calcining temperature may be
2
being
250
is
300
reaction temperature is
16
Al2O3 with
500
may also be were suspended in
3
Example
200
hydrogen atmosphere at
450
may also be
['1. A hydrodesulfurization catalyst for hydrocarbon oil, the catalyst comprising: an inorganic oxide carrier comprising Si, Ti and Al; and at least one metal component, carried on the inorganic oxide carrier, being selected from the group consisting of group 6 elements, group 8 elements, group 9 elements and group 10 elements, wherein a content of Al in the inorganic oxide carrier is 50% by mass or higher in terms of Al 2 O 3 ; a content of Si therein is 1.0 to 10% by mass in terms of SiO 2 ; and a content of Ti therein is 12 to 28% by mass in terms of TiO 2 ; and in the inorganic oxide carrier, an absorption edge wavelength of an absorption peak from Ti is 364 nm or shorter as measured by ultraviolet spectroscopy.']