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Hydrocracking catalyst and method for preparing same

A hydrocracking and catalyst technology, applied in physical/chemical process catalysts, organic compound/hydride/coordination complex catalysts, molecular sieve catalysts, etc., can solve the problems of low aromatics conversion activity and achieve aromatics hydroconversion activity The effect of improving and improving the activity of aromatics conversion

Active Publication Date: 2012-01-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a new hydrocracking catalyst with higher aromatics conversion activity in view of the defect of low aromatics conversion activity of the hydrocracking catalyst provided by the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0031] The hydrogenation catalyst prepared by the method for preparing the hydrogenation catalyst provided by the invention is suitable for hydrocracking hydrocarbon feedstocks to produce hydrocarbon fractions with lower boiling points and lower molecular weights. The hydrocarbon feedstock can be various heavy mineral oils or synthetic oils or their mixed distillates, such as straight run gas oil, vacuum gas oil, demetallized oils ), atmospheric residue, deasphalted vacuum residue, coker distillates, cat cracker distillates, shale oil, Tar sand oil, coal liquid, etc.

[0032] When the hydrogenation catalyst prepared by the preparation method of the hydrogenation catalyst provided by the present invention is used for hydrocracking of hydrocarbon feedstock, it can be used under conventional hydrocracking process conditions, such as a reaction temperature of 200-650 ° C, preferably 300- 510°C, reaction pressure 3-24 MPa, preferably 4-15 MPa, liquid hourly space velocity 0.1-10 h...

Embodiment 1

[0035] With 192.7 grams of hydrated alumina (produced by Sasol German company, trade name SB powder, dry basis 0.71) with silica sol 80g (Beijing Feilongma Economic and Trade Effective Company, trade name JN-25, silica content 25%, silica granules Diameter 9-11nm) molecular sieve (produced by Changling Catalyst Factory of Sinopec Catalyst Branch Company, trade name HY, unit cell constant 24.60, dry basis 0.75) 53.3g, 15 grams of squash powder are mixed, extruded into a three-dimensional circle with a diameter of 1.6 mm. Leaf-shaped strips were dried at 120°C and calcined at 600°C for 3 hours to obtain carrier CS-1. After cooling down to room temperature, take 100g CS-1 carrier with ammonium metatungstate (Sichuan Zigong Cemented Carbide Factory, tungsten oxide content is 82% by weight) 40.7 grams, nickel nitrate (product of Beijing Yili Fine Chemicals Co., Ltd., oxidized Nickel content is 25.4% by weight) 16.4 grams of 70ml aqueous solution impregnation, 120 ℃ of drying, roast...

Embodiment 2

[0037] With 192.7 grams of hydrated alumina (produced by Sasol German company, trade name SB powder, dry basis 0.71) with silica sol 80g (Beijing Feilongma Economic and Trade Effective Company, trade name JN-25, silica content 25%, silica granules Diameter 9-11nm) HY molecular sieve (produced by Changling Catalyst Factory of Sinopec Catalyst Branch Company, trade name HY, unit cell constant 24.60, dry basis 0.75) 40g, USY molecular sieve (produced by Sinopec Catalyst Branch Changling Catalyst Factory, trade name LAY, The unit cell constant is 24.56, the dry basis is 0.75) 13.5g, and 15 grams of safflower powder are mixed, extruded into trefoil-shaped strips with a circumscribed circle diameter of 1.6 mm, dried at 120°C, and roasted at 600°C for 3 hours to obtain the carrier CS- 2. After cooling down to room temperature, take 100 g of CS-2 carrier and use the same conditions as Example 1 to obtain catalyst C-2.

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Abstract

The invention discloses a hydrocracking catalyst and a method for preparing the same. The catalyst contains a carrier, and hydrogenation active components of a VIB group and a VIII group, and an organic additive, wherein the hydrogenation active components of the VIB group and the VIII group, and the organic additive are loaded on the carrier; based on the total weight of the catalyst, the carrier accounts for 40 to 90 weight percent of the total weight of the catalyst and the organic additive accounts for 0.5 to 30 weight percent of the catalyst; based on oxide, the hydrogenation active components of the VIB group account for 5 to 35 weight percent of the weight of the oxide, and the hydrogenation active components of the VIII group account for 1 to 15 weight percent of the weight of theoxide; and the carrier contains a Y molecular sieve and a silicon oxide bonding agent, and the weight ratio of the Y molecular sieve to the silicon oxide bonding agent is 0.01 to 10. The catalyst is prepared by the method comprising the following steps: preparing the carrier by mixing, molding, drying and baking a precursor comprising the Y molecular sieve and the silicon oxide bonding agent; andthen introducing the hydrogenation active metal components and the organic additive into the carrier. Compared with the prior art, the aromatic hydrocarbon hydro-conversion activity of the catalyst is remarkably improved.

Description

technical field [0001] The invention relates to a hydrocracking catalyst and a preparation method thereof. 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 cracking components (acidic components) and hydrogenation active components at the same time. Among them, the cracking component is generally selected from acidic silica-alumina, which includes amorphous silica-alumina, silicon-containing alumina, zeolite molecular sieve and mixtures thereof, and the hydrogenation active component is generally selected from VIB and VIII in the periodic table of elements group of metals, metal oxides and / or metal sulfides. In order to meet the different requirements for hydrocracking products, it is necessary to make adaptive adjustments to the acidic components and hydrogenation active components in the catalyst. [0003] CN1854261A discloses a hydrocracki...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/02B01J29/16
Inventor 毛以朝聂红李明丰王锦业李毅胡志海
Owner CHINA PETROLEUM & CHEM CORP