Hydrocracking catalyst and preparation method thereof, and hydrocracking reaction method

A hydrocracking and catalyst technology, applied in physical/chemical process catalysts, molecular sieve catalysts, chemical instruments and methods, etc., can solve problems such as easy carbon deposition and deactivation

Active Publication Date: 2016-04-06
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0007] The purpose of the present invention is to overcome the defects of easy carbon deposition and deactivation when using the existing hydrocracking catalyst to hydrocrack hydrocarbon oil rich in aromatics to produce high value-added chemical material BTX or high-octane gasoline, and provide A hydrocracking catalyst that is not only difficult to deposit carbon, but also capable of obtaining hydrocracking products with relatively high aromatics content, a preparation method of the hydrocracking catalyst, and a method of using the hydrocracking catalyst to carry out hydrocracking reactions method

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  • Hydrocracking catalyst and preparation method thereof, and hydrocracking reaction method

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specific Embodiment approach

[0025] According to a specific embodiment of the present invention, the MoY type zeolite molecular sieve is prepared according to a method comprising the following steps:

[0026] (1) mixing the Y-type zeolite molecular sieve with the Mo-containing compound to obtain a mixture of the Y-type zeolite molecular sieve and the Mo-containing compound;

[0027] (2) Roasting the mixture obtained in step (1) in an atmosphere containing water vapor to obtain MoY type zeolite molecular sieve;

[0028] Wherein, the MoY type zeolite molecular sieve is based on the dry basis, and the consumption of each component in the step (1) is such that in the final MoY type zeolite molecular sieve, the molybdenum content in terms of oxides is preferably 0.5-10% by weight , more preferably the molybdenum content in terms of oxide is 2-8% by weight. The molybdenum-containing compound is preferably selected from molybdenum oxides, chlorides or molybdates. The roasting conditions in the step (2) include...

Embodiment 1

[0055] This example is used to illustrate the hydrocracking catalyst provided by the present invention and its preparation method.

[0056] The dry basis of 142.9 grams is 70% pseudo-boehmite (Catalyst Changling branch company) and the dry basis of 133.3 grams is 75% HY type zeolite (Catalyst Changling branch company, unit cell constant is 24.65 angstrom) mix Evenly, extruded into a three-leaf strip with a circumscribed circle diameter of 1.6 mm on an extruder, then dried at 120°C for 3 hours, and then calcined at 600°C for 4 hours to obtain catalyst carrier Z1, whose composition is shown in Table 1.

[0057] 100 grams of the above-mentioned carrier Z1 were mixed with 82 milliliters of ammonia solution containing ammonium molybdate, cobalt nitrate and nickel nitrate (converted into corresponding oxides containing 108.7 grams per liter of MoO 3 , 24.5 g / L CoO, 6.8 g / L NiO) impregnated for 1 hour, then dried the impregnated carrier at 120° C. for 2 hours, and then calcined at 45...

Embodiment 2

[0065] This example is used to illustrate the hydrocracking catalyst provided by the present invention and its preparation method.

[0066] The dry basis of 79.1 grams is 70% pseudo-boehmite (Catalyst Changling branch company) and the dry basis of 187.8 grams is 77% USY type zeolite (Catalyst Changling branch company, unit cell constant is 24.58 Angstrom) mix Evenly, extruded into a three-leaf strip with a circumscribed circle diameter of 1.6 mm on an extruder, then dried at 120°C for 3 hours, and then roasted at 580°C for 3 hours to obtain catalyst carrier Z2, whose composition is shown in Table 1.

[0067] 100 grams of the above-mentioned carrier Z2 were mixed with 85 milliliters of ammonia solution containing ammonium molybdate, cobalt nitrate and nickel nitrate respectively (converted into corresponding oxides containing 200.2 grams per liter of MoO 3 , 53.9 g / L CoO, 7.7 g / L NiO) impregnated for 1 hour, then dried the impregnated carrier at 120° C. for 2 hours, and then ca...

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Abstract

The present invention provides a hydrocracking catalyst and a preparation method thereof, and a hydrocracking reaction method. The hydrocracking catalyst comprises a carrier and active components loaded on the carrier, wherein the active components comprise (calculated as the oxide), by weight, 3-20% of molybdenum, 0.5-5% of cobalt, and 0.1-1% of nickel, a molar ratio of the cobalt atom to the nickel atom in the active components is 1-15:1, the carrier contains a solid acid component and an inorganic heat-resistant oxide, and the solid acid component is a Y type molecular sieve or a mixture of a Y type molecular sieve and amorphous silicon-aluminum. According to the present invention, the hydrocracking catalyst has carbon deposition resistance, can obtain the high aromatic hydrocarbon content hydrocracking product, and has industrial application prospects.

Description

technical field [0001] The invention relates to a hydrocracking catalyst, a preparation method of the hydrocracking catalyst and a method for using the hydrocracking catalyst to carry out hydrocracking reaction. Background technique [0002] As crude oil becomes heavier and worse, the quality of secondary processed diesel fractions such as catalytic cracking diesel oil and coker diesel oil is deteriorating, which is manifested in high density, high nitrogen content, high aromatic content, and low cetane number etc. Therefore, the hydro-upgrading of these secondary processed diesel fractions rich in aromatics has attracted more and more attention. Converting these low-quality diesel oils into high value-added chemicals BTX or high-octane gasoline components is one of the effective technical approaches for secondary processing of diesel oil. At present, there are many reports on hydrogenation upgrading catalysts as the core technology of this route. [0003] For example, US...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/78B01J29/16C10G47/20
Inventor 辛靖杨平董松涛张毓莹李明丰胡志海聂红
Owner CHINA PETROLEUM & CHEM CORP
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