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

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

Active Publication Date: 2016-02-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • 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

[0032] The present invention also provides a preparation method of the hydrocarbon oil desulfurization catalyst of the present invention, the method comprising: (1) mixing a titanium dioxide binder, water and an acidic liquid to obtain a titanium sol; (2) nitrogenating the titanium sol, Silicon, at least one metal oxide selected from IIB, VB and VIB group elements, molecular sieves with an MFI structure and water are mixed, and the mixed carrier slurry is formed, first dried, and first calcined to obtain a carrier; ( 3) Introduce the precursor of the metal promoter in the carrier, then carry out the second drying and the second roasting to obtain the catalyst precursor; (4) reduce the catalyst precursor under a hydrogen atmosphere to obtain the hydrocarbon oil desulfurization catalyst .

[0033] In the preparation method step (2) of the hydrocarbon oil desulfurization catalyst provided by the present invention, the addition of the metal oxide may be in the form of powder of th...

Embodiment 1

[0059] This example is used to illustrate the method for preparing a hydrocarbon oil desulfurization catalyst of the present invention.

[0060] (1) Prepare the carrier. 2.40 kg of titanium tetrachloride (Beijing Chemical Plant, analytically pure, 99% by weight) was slowly added to 4.6 kg of 5% dilute hydrochloric acid, and slowly stirred to avoid the precipitation of titanium oxide crystals to obtain a light yellow transparent titanium sol pH=2.0;

[0061] With 4.43kg of zinc oxide powder (Headhorse company, purity 99.7% by weight), 0.88kg of ZSM-5 molecular sieve (catalyst Qilu branch, containing 0.70kg on a dry basis, SiO 2 :Al 2 o 3 The molar ratio is 30), 2.06kg of silicon nitride (purity > 99.0% by weight, α phase, Qinhuangdao Yinuo High-tech Material Development Co., Ltd.) and 8.80kg of deionized water are mixed, and after stirring for 30 minutes, zinc oxide, nitrogen A mixed slurry of silicon carbide and ZSM-5 molecular sieve; then add the above-mentioned titanium s...

Embodiment 2

[0067] This example is used to illustrate the method for preparing a hydrocarbon oil desulfurization catalyst of the present invention.

[0068] Get 1.25kg of titanium dioxide (anatase type, containing 1.17kg on a dry basis) and add 1.8kg of deionized water and 1.0kg of 30% by weight hydrochloric acid (chemically pure, produced by Beijing Chemical Plant), pH = 1.9, and stir to react 1h, a light yellow transparent titanium sol was obtained;

[0069] With the silicon nitride of 1.50kg, the ZRP-1 molecular sieve of 0.38kg (catalyst Qilu branch, containing dry base 0.30kg, SiO 2 :Al 2 o 3 The molar ratio is 25), 5.52kg of zinc oxide powder and 10.0kg of deionized water are mixed under stirring to obtain a mixed slurry of zinc oxide, ZRP-1 molecular sieve and silicon nitride, then add the above titanium sol and stir for 1h to obtain carrier slurry;

[0070] Referring to the method of Example 1, the carrier slurry was spray-dried and shaped, and the active component nickel was i...

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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 titanium dioxide, 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 MFI 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): B01J29/46B01J29/76C10G45/12
Inventor 田辉平林伟王振波许明德王磊张万虹
Owner CHINA PETROLEUM & CHEM CORP
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