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Hydrocracking catalyst and preparation thereof

A technology for catalyst and cracking activity, applied in the field of hydrocracking catalyst and its preparation, can solve the problems of low hydroconversion activity of hydrocarbon oil, etc., and achieve the effect of improved activity and good strength

Active Publication Date: 2011-04-20
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a new hydrocarbon oil hydrocracking catalyst containing large pore volume matrix components and / or small pore volume matrix components in the prior art. Hydrocracking catalyst with high oil hydroconversion activity and preparation method thereof

Method used

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  • Hydrocracking catalyst and preparation thereof
  • Hydrocracking catalyst and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0035] This example describes the preparation of the catalyst support of the present invention

[0036] Get 250g Y type molecular sieve (same as comparative example 1) with 227 gram SD powder (same as comparative example 1), 313 gram CL powder (same as comparative example 1), 268 gram SB (production of Sasol company, trade name SB, pore volume 0.53ml / g, dry basis 70%) powder, mixed with 30 grams of Selina powder, 750ml of aqueous solution containing 20ml of analytically pure nitric acid, extruded into a trefoil-shaped strip with a circumscribed circle diameter of 1.6 mm, dried at 120°C, and roasted at a temperature of 550°C After 3 hours, the carrier CS-1 was obtained. Table 1 shows the catalyst carrier composition, carrier crushing strength and pore volume.

example 2

[0038] This example describes the preparation of the catalyst support of the present invention

[0039] Get 250g Y type molecular sieve (same as comparative example 1) with 35 gram SD powder (same as comparative example 1), 64 gram CL powders (same as comparative example 1), 229 gram SB powders (same as example 1), 30 gram of Selina powder, Mix 750ml of aqueous solution containing 20ml of analytically pure nitric acid, extrude into trefoil strips with a circumcircle diameter of 1.6mm, dry at 120°C, and roast at 550°C for 3 hours to obtain carrier CS-2, catalyst carrier composition and carrier crushing The strength and pore volume are shown in Table 1.

example 3

[0041] This example describes the preparation of the catalyst support of the present invention

[0042] Get 250g of silica-alumina powder (Sasol produces the silica-alumina powder containing 40% of silicon oxide, trade name Sira-40, dry basis 80%) with 1091 gram of SD powder (same as comparative example 1), 1250 gram of CL powder (same as comparative example 1 ), 257 gram SB powders (with example 1), 1800ml contain the aqueous solution mixing of analytical pure nitric acid 55ml, extrude into the trefoil bar that circumscribed circle diameter is 1.6 millimeters, 120 ℃ of oven dry, roasting 6 hours under 450 ℃ of temperature, get Carrier CS-3, catalyst carrier composition, carrier crushing strength and pore volume are shown in Table 1.

[0043] Table 1

[0044]

[0045] The results given in Table 1 can illustrate that the crushing strength of the carrier provided by the present invention is obviously improved.

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Abstract

The invention relates to a hydrocracking catalyst and a method for preparing the same, wherein the catalyst contains effective dose of cracking active component, effective dose of hydrogenating active metal component and medium, in which the medium is compounded by a big pore volume aluminum oxide with more than 0.6-1.2ml / g of pore volume, a moderate pore volume aluminum oxide with 0.48-0.6ml / g of pore volume and a small pore volume aluminum oxide with 0.2-less than 0.48ml / g of pore volume. The medium contains 10-60 percent by weight of small pore volume aluminum oxide, 5-60 percent by weightof moderate pore volume aluminum oxide and 15-60 percent by weight of big pore volume aluminum oxide. The catalyst is prepared by mixing, forming and roasting effective dose of cracking active component and the medium to prepare the carrier, and introducing the carrier into effective dose of hydrogenating active metal components. Compared with the catalyst provided by the prior art, the catalyst of the invention has increased activity and better strength.

Description

technical field [0001] The invention relates to a hydrocracking catalyst and its preparation. Background technique [0002] The hydrocracking catalyst is a dual-functional catalyst, which has cracking activity and hydrogenation activity at the same time, that is, it contains both acidic components and hydrogenation active components; cracking components are generally selected from acidic silica-alumina, including: silica-oxidation Aluminum, zeolite molecular sieves and mixtures thereof, hydrogenation active components are generally selected from metals, metal oxides and / or metal sulfides of Group VIB and Group VIII in the periodic table of elements. With the heavy and inferior quality of petroleum resources, the raw materials for hydrocracking are deteriorating day by day. In order to meet the needs of hydrocracking for processing heavier and inferior feedstocks, the performance of catalysts for processing heavy feedstocks can generally be improved by increasing the pore vo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G47/16
Inventor 毛以朝聂红李明丰董建伟胡志海
Owner CHINA PETROLEUM & CHEM CORP
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