Hydrocarbon oil desulfurization catalyst and preparation method thereof, and hydrocarbon oil desulfurization method

A technology for desulfurization catalysts and hydrocarbon oils, applied in molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems such as poor wear resistance, low desulfurization activity, and unstable structure, and achieve long service life , low catalyst loss and good wear resistance

Active Publication Date: 2016-02-03
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to overcome the defects of low desulfurization activity, unstable structure and poor wear resistance of the a

Method used

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  • Hydrocarbon oil desulfurization catalyst and preparation method thereof, and hydrocarbon oil desulfurization method
  • Hydrocarbon oil desulfurization catalyst and preparation method thereof, and hydrocarbon oil desulfurization method

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preparation example Construction

[0035] The present invention also provides the preparation method of the hydrocarbon oil desulfurization catalyst of the present invention, the method comprising: (1) silicon nitride, alumina binder, at least one metal oxide selected from IIB, VB and VIB group elements , molecular sieves with FAU and / or BEA structure, water and acidic liquid are mixed, and the carrier slurry obtained by mixing is formed, first dried, and first roasted to obtain a carrier; (2) introducing a metal promoter into the carrier The precursor is then subjected to second drying and second roasting to obtain a catalyst precursor; (3) reducing the catalyst precursor in a hydrogen atmosphere to obtain a hydrocarbon oil desulfurization catalyst.

[0036] The mixing process described in step (1) of the preparation method of the hydrocarbon oil desulfurization catalyst provided by the present invention may not specifically limit the timing of adding silicon nitride, and a specific embodiment is: the mixing pr...

Embodiment 1

[0062] This example is used to illustrate the method for preparing a hydrocarbon oil desulfurization catalyst of the present invention.

[0063] (1) Prepare the carrier. With 4.43kg of zinc oxide powder (Headhorse company, purity 99.7% by weight), 0.88kg of β molecular sieve (catalyst Qilu branch, containing 0.70kg on a dry basis, SiO 2 :Al 2 o 3 The mol ratio is 8.2) and the deionized water of 6.57kg mixes, obtains the mixed slurry of zinc oxide and rector earth after stirring for 30 minutes;

[0064] Get 1.33kg of pseudo-boehmite (catalyst Nanjing branch, containing 1.00kg on a dry basis) and 2.06kg of silicon nitride (purity > 99.0% by weight, α phase, Qinhuangdao Yinuo High-tech Material Development Co., Ltd.) and stir and mix, then Add 4.6 kg of deionized water and mix evenly to form a slurry, then add 360 ml of 30% by weight hydrochloric acid (chemically pure, produced by Beijing Chemical Factory) to make the pH of the slurry = 2.1, stir and acidify for 1 hour, then h...

Embodiment 2

[0070] This example is used to illustrate the method for preparing a hydrocarbon oil desulfurization catalyst of the present invention.

[0071] Stir and mix pseudo-boehmite 1.56kg (catalyst Nanjing Branch, containing 1.17kg on a dry basis) and 1.50kg of silicon nitride, then add 8.2kg of deionized water and mix evenly to form a slurry, then add 260ml of 30% by weight hydrochloric acid to make the pH of the slurry = 1.9, stir and acidify for 1 hour, then raise the temperature to 80° C. and age for 2 hours. After the temperature drops, add 5.52kg of zinc oxide powder and 0.38kg of REUSY molecular sieve (catalyst Qilu branch, containing 0.3kg on a dry basis, SiO 2 :Al 2 o 3 The molar ratio is 2.8), and stirred for 1 h to obtain carrier slurry.

[0072] Referring to the method of Example 1, the carrier slurry was spray-dried and shaped, and the active component nickel was introduced, and the hydrocarbon oil desulfurization catalyst A2 was obtained after reduction.

[0073] Th...

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Abstract

The invention discloses a hydrocarbon oil desulfurization catalyst and a preparation method thereof, and a hydrocarbon oil desulfurization method. Based on the total weight of the hydrocarbon oil desulfurization catalyst as the reference, the hydrocarbon oil desulfurization catalyst comprises 10-80 wt% of at least one of metal oxides of IIB, VB, and VIB group elements, 3-35 wt% of aluminium oxide, 5-40 wt% of silicon nitride, 5-30 wt% of a metal accelerant selected from at least one of cobalt, nickel, iron and manganese, and 1-20 wt% of a molecular sieve with an FAU and/or BEA structure. The hydrocarbon oil desulfurization catalyst is excellent in stability, higher in desulfurization activity, better in wear resistance and longer in service life.

Description

technical field [0001] The present invention relates to a hydrocarbon oil desulfurization catalyst and a preparation method thereof and a method for hydrocarbon oil desulfurization, in particular to a hydrocarbon oil desulfurization catalyst, a method for preparing a hydrocarbon oil desulfurization catalyst and a hydrocarbon oil desulfurization catalyst obtained by the method, and A method for desulfurizing hydrocarbon oil using the hydrocarbon oil desulfurization catalyst. Background technique [0002] As people pay more and more attention to environmental protection, environmental regulations are becoming stricter, and reducing the sulfur content of gasoline and diesel is considered to be one of the most important measures to improve air quality. Most of the sulfur in my country's gasoline products comes from thermally processed gasoline blending components, such as catalytic cracking gasoline. Therefore, the reduction of sulfur content in thermally processed gasoline wil...

Claims

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Application Information

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IPC IPC(8): B01J29/06B01J29/80C10G45/12
Inventor 林伟田辉平王鹏王振波王磊
Owner CHINA PETROLEUM & CHEM CORP
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