A kind of preparation method of hydrocracking catalyst
A cracking catalyst and hydrocracking technology, which is applied in the direction of physical/chemical process catalysts, molecular sieve catalysts, chemical instruments and methods, etc., can solve the problems of high octane loss of gasoline products, reduction of hydrogenation saturation of gasoline components, and low cracking activity and other problems, to achieve the effect of reducing reaction hydrogen consumption, reducing hydrogenation saturation, and increasing octane number
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Embodiment 1
[0051] (1) Take Y molecular sieve with a dry basis weight of 300g and dry basis weight of 100g macroporous alumina, mix evenly, add 3g / 100ml dilute nitric acid 200ml, roll and extrude, then dry at 120°C for 4h, and roast at 550°C After 3 hours, the carrier was obtained, and the number was T-1; (2) Mo-Co impregnation solution was prepared: ammonium molybdate and cobalt nitrate were dissolved in water and the impregnation solution was prepared. The active metal in the obtained impregnation solution was MoO 3 and CoO content are calculated as 20g / 100ml and 6g / 100ml respectively, coded as RY-1; take 300g of T-1 and soak it in 600ml RY-1 for 2h, then take out the carrier at room temperature for 2h, dry at 100°C for 4h, and roast at 500°C 3h to obtain a low metal content carrier, numbered CTL-1; (3) Take 300g of CTL-1 and place it in 600ml of n-heptane solvent for immersion for 2h, take it out and dry it at 110°C for 5 minutes to obtain CTL-2, n-heptane on the carrier The volume con...
Embodiment 2
[0053] (1) Take Y molecular sieve with a dry basis weight of 200g and dry basis weight of 200g macroporous alumina and mix evenly, add 3g / 100ml dilute nitric acid 200ml for rolling and extrusion, then dry at 120°C for 4 hours, and roast at 550°C After 3 hours, the carrier was obtained, and the number was T-2; (2) Mo-Co impregnation solution was prepared: ammonium molybdate and cobalt nitrate were dissolved in water and the impregnation solution was prepared. The active metal in the obtained impregnation solution was MoO 3 and CoO content are calculated as 18g / 100ml and 5g / 100ml respectively, coded as RY-3; take 300g of T-2 and soak it in 800ml RY-3 for 2h, then take out the carrier at room temperature for 2h, dry at 100°C for 4h, and roast at 500°C 3h to obtain a low metal content carrier, numbered CTL-3; (3) Take 300g of CTL-3 and place it in 600ml of petroleum ether solvent for immersion for 2h, take it out and dry it at 90°C for 6 minutes to obtain CTL-4, the amount of petro...
Embodiment 3
[0055] (1) Take β molecular sieve with a dry basis weight of 250g and dry basis weight of 150g macroporous alumina, mix evenly, add 3g / 100ml dilute nitric acid 200ml, roll and extrude, then dry at 120°C for 4h, and roast at 550°C After 3 hours, the carrier was obtained, and the number was T-3; (2) Mo-Co impregnation solution was prepared: ammonium molybdate and cobalt nitrate were dissolved in water and the impregnation solution was prepared. The active metal in the obtained impregnation solution was MoO 3 and CoO content are calculated as 22.4g / 100ml and 6.7g / 100ml respectively, coded as RY-5; take 300g T-300g and soak in 600ml RY-5 for 2h, then take out the carrier at room temperature for 2h and dry at 100°C for 4h, 500 Roasted at ℃ for 3 hours to obtain a low metal content carrier, numbered CTL-3; (3) Take 300g of CTL-3 and place it in 600ml n-heptane solvent for immersion for 2h, take it out and dry it at 110℃ for 5 minutes to obtain CTL-3, n-heptane The volume content in ...
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