摘要:
A hydrocracking catalyst that solves the above-described problem comprises a carrier containing ultra-stable Y-type zeolite obtained by the ultrastabilization of NaY-type zeolite and a metal from group VIII of the Periodic Table supported on this carrier, and is characterized in that the NaY-type zeolite has a peak in its X-ray diffraction pattern in the range of 2θ = 28.0° to 28.5° and 2θ = 15.0° to 16.0°, and the intensity ratio I 1 /I 2 is no greater than 0.05, letting I 1 be the peak intensity observed in the range of 2θ = 28.0° to 28.5° and I 2 be the peak intensity observed in the range of 2θ = 15.0° to 16.0°.
摘要:
The present invention provides a method of producing a liquid fuel enabling production of middle distillate at a high yield from a feed oil containing paraffinic hydrocarbons having 20 to 100 carbon atoms as main components without losing the high cracking activity and also enabling provision of high quality gas oil included in the middle distillate. A feed oil containing paraffinic hydrocarbons having 20 to 100 carbon atoms as main components is subjected to hydrotreating in the present of a prespecified hydrotreating catalyst and under the conditions for hydrotreating including a temperature of 200 to 350 °C, a liquid hourly space velocity of 0.1 to 5.0 h -1 , and a partial pressure of hydrogen of 0.5 to 8 MPa to obtain an effluent oil, and then the effluent oil is fractionated to obtain middle distillate including a gas oil with a cetane number of 75 or over and a pour point of -27.5 °C or below at a yield of 55% or over against a total weight of the feed oil.
摘要:
The present invention provides a hydrodesulfurization catalyst exhibiting a high desulfurization activity when used for hydrotreating a hydrocarbon oil, particularly straight-run gas oil. The hydrodesulfurization catalyst is a catalyst produced by pre-sulfurizing a hydrodesulfurization catalyst Y comprising a support containing silica, alumina and titania and at least one type of metal component supported thereon and selected from VIA and VIII groups of the periodic table (comprising at least Mo), in which the total area of the diffraction peak area indicating the crystal structure of anatase titania (101) planes and the diffraction peak area indicating the crystal structure of rutile titania (110) planes in the support, measured by X-ray diffraction analysis being 1/4 or less of the alumina diffraction peak area assigned to γ-alumina (400) planes, the molybdenum is formed into molybdenum disulfide crystal and disposed in layers on the support by the pre-sulfurization, and the molybdenum disulfide crystal layers having an average length of longer than 3.5 nm and 7 nm or shorter in the plane direction and an average number of laminated layers of more than 1.0 and 1.9 or fewer.
摘要:
The present invention provides a hydrodesulfurization catalyst that exhibits a high desulfurization activity when used in hydrotreatment of hydrocarbon oil, in particular straight-run gas oil. The catalyst comprising at least one type of metal component selected from Groups VIA and VIII in the periodic table, supported on a silica-titania-alumina support where the total of the diffraction peak area indicating the crystal structure of anatase titania (101) planes and the diffraction peak area indicating the crystal structure of rutile titania (110) planes is 1/4 or less of the diffraction peak area indicating the aluminum crystal structure ascribed to y-alumina (400) planes, as measured by X-ray diffraction analysis, the catalyst having (a) a specific surface area (SA) of 150 m 2 /g or greater, (b) a total pore volume (PVo) of 0.30 ml/g or greater, (c) an average pore diameter (PD) of 6 to 15 nm (60 to 150 Å), and (d) the ratio of the pore volume (PVp) of pores having diameters within ±30 percent of the average pore diameter (PD) being 70 percent or greater of the total pore volume (PVo).
摘要:
Provided is a catalyst for hydrocracking a paraffinic hydrocarbon which provides satisfactorily high cracking activity and middle fraction yield as well as the low pour point of the fuel base material (the middle fraction) all together. The catalyst of the present invention comprises a USY zeolite derived from NaY used as the raw material and having a peak intensity of 30 or lower, appearing on the 111 surface upon X-ray diffraction, and a noble metal of Group VIII of the periodic table.
摘要:
The hydrorefining method of the invention is characterized by contacting, in the presence of hydrogen, a fuel stock comprising normal paraffins and oxygen-containing compounds, with a hydrorefining catalyst comprising a support containing USY zeolite and at least one solid acid selected from among silica-alumina, alumina-boria, silica-zirconia, silica-magnesia and silica-titania, and at least one metal selected from among metals of Group VIb and metals of Group VIII of the Periodic Table supported on the support.
摘要:
Provided is a catalyst for hydrocracking paraffinic hydrocarbons which provides satisfactorily high cracking activity and middle distillate yield as well as the low pour point of the resulting gas oil all together. The catalyst of the present invention comprises a crystalline aluminosilicate, alumina-boria and a noble metal of Group VIII of the Periodic Table.
摘要:
The hydrocracking method of wax of the invention is a hydrocracking process wherein crude wax is subjected to hydrocracking and the untreated wax fraction that is produced after the hydrocracking is re-supplied for hydrocracking, and wherein hydrocracking of the mixture of the crude wax and untreated wax fraction is carried out in such a manner for a conversion ratio of 50-85 % by mass from the wax fraction with a boiling point of 360°C or above to the light fraction with a boiling point of below 360°C in the presence of a hydrocracking catalyst. It is thereby possible to simultaneously achieve both an increased heart-cut fraction yield (as the product of the hydrocracking) and a reduced normal paraffin content in the heart-cut fraction when the untreated wax is hydrocracked by a bottom recycling system.