Light cycle oil hydrocracking catalyst and preparation method thereof
A technology for hydrocracking and light cycle oil, which is applied in the direction of physical/chemical process catalysts, molecular sieve catalysts, chemical instruments and methods, etc. It can solve the problems of low cracking activity and poor nitrogen resistance, and achieve improved nitrogen resistance and cracking The effect of activity, reducing toxicity, and saving start-up time
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Embodiment 1
[0034] Add USY zeolite (purchased from Zibo, Shandong, with a silicon-aluminum ratio of 10), amorphous silica-alumina (purchased from Zibo, Shandong) and pseudo-boehmite (purchased from Zibo, Shandong) with a dry basis of 40g, 30g, and 10g into the mixer respectively until uniform, then add 3g sage powder, 5g volume ratio 1:1HNO to the mixture 3 solution and 40g deionized water, and grind evenly to make a dough suitable for extrusion. It is extruded through a die and is in the shape of a slender cylinder (diameter 1.7mm). After drying at 120°C, it is baked at 550°C for 4 hours, and then it is cut into carrier particles of uniform size (1.7×4.0mm) for use.
[0035] Impregnate the carrier particles with a solution containing ammonium tetrathiomolybdate and ammonium tetrathiotungstate at 40°C, and the contents of molybdenum sulfide and tungsten sulfide contained in the impregnation solution are 5% and 9% of the dry weight of the carrier, After aging for 8 hours and drying, impre...
Embodiment 2
[0038] Add USY zeolite (purchased from Zibo, Shandong, with a silicon-aluminum ratio of 10), amorphous silica-alumina (purchased from Zibo, Shandong) and pseudo-boehmite (purchased from Zibo, Shandong) with a dry basis of 40g, 30g, and 10g into the mixer respectively until uniform, then add 3g sage powder, 5g volume ratio 1:1HNO to the mixture 3solution and 40g deionized water, and grind evenly to make a dough suitable for extrusion. It is extruded through a die and is in the shape of a slender cylinder (diameter 1.7mm). After drying at 120°C, it is baked at 550°C for 4 hours, and then it is cut into carrier particles of uniform size (1.7×4.0mm) for use.
[0039] Impregnate the carrier particles with a solution containing ammonium tetrathiomolybdate and ammonium tetrathiotungstate at 40°C, and the contents of molybdenum sulfide and tungsten sulfide contained in the impregnation solution are 5% and 9% of the dry weight of the carrier, After aging for 8 hours and drying, impreg...
Embodiment 3
[0042] Beta zeolite (purchased from Zibo, Shandong, with a silicon-aluminum ratio of 13), amorphous silica-alumina (purchased from Zibo, Shandong) and pseudo-boehmite (purchased from Zibo, Shandong) with a dry basis of 40 g, 30 g, and 10 g were added to the mixer until uniform, then add 3g sage powder, 5g volume ratio 1:1HNO to the mixture 3 solution and 40g deionized water, and grind evenly to make a dough suitable for extrusion. It is extruded through a die and is in the shape of a slender cylinder (diameter 1.7mm). After drying at 120°C, it is baked at 550°C for 4 hours, and then it is cut into carrier particles of uniform size (1.7×4.0mm) for use.
[0043] Impregnate the carrier particles with a solution containing ammonium tetrathiomolybdate and ammonium tetrathiotungstate at 40°C, and the contents of molybdenum sulfide and tungsten sulfide contained in the impregnation solution are 5% and 9% of the dry weight of the carrier, After aging for 8 hours and drying, impregnat...
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