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

A desulfurization catalyst, a technology for hydrocarbon oil, applied in the field of hydrocarbon oil desulfurization, can solve the problems of poor wear resistance, unstable structure, low desulfurization activity, etc., and achieve long service life, good wear resistance, and low catalyst loss. Effect

Active Publication Date: 2016-02-03
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
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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 adsorbent in the prior art, and provide a hydrocarbon oil desulfurization catalyst and its preparation method and a method for hydrocarbon oil desulfurization

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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

[0031] The present invention also provides a preparation method of the hydrocarbon oil desulfurization catalyst of the present invention, the method comprising: (1) mixing a tin dioxide binder, water and an acidic liquid to obtain a tin sol; (2) mixing the tin sol, Silicon nitride, at least one metal oxide selected from group IIB, VB and VIB group elements, and water are mixed, and the mixed carrier slurry is formed, first dried, and first calcined to obtain a carrier; (3) in the Introduce the precursor of the metal promoter into the carrier, and then carry out the second drying and the second roasting to obtain the catalyst precursor; (4) reduce the catalyst precursor in a hydrogen atmosphere to obtain the hydrocarbon oil desulfurization catalyst.

[0032] 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 the metal oxide, or the metal oxide may be...

Embodiment 1

[0058] This example is used to illustrate the method for preparing a hydrocarbon oil desulfurization catalyst of the present invention.

[0059] (1) Prepare the carrier. 3.21kg of tin tetrachloride (SnCl 4 ·5H 2 (2, Alfa company, 99%) slowly add 4.6kg of deionized water, and add 4.6kg of 5% by weight nitric acid solution, stir slowly to avoid the crystallization of tin oxide, and obtain a colorless and transparent tin sol pH=2.1;

[0060]4.43kg of zinc oxide powder (Headhorse company, purity 99.7% by weight), 2.40kg of silicon nitride (purity>99.0% by weight, Qinhuangdao Yinuo High-tech Material Development Co., Ltd.) and 6.57kg of deionized water were mixed and stirred for 30 After 10 minutes, a mixed slurry of zinc oxide and silicon nitride was obtained; then the above-mentioned tin sol was added, mixed and stirred for 1 hour to obtain a carrier slurry;

[0061] The carrier slurry is used NiroBowenNozzleTower TM The model spray dryer is used for spray drying, the spray d...

Embodiment 2

[0066] This example is used to illustrate the method for preparing a hydrocarbon oil desulfurization catalyst of the present invention.

[0067] Get 1.53kg of tin acetate (Aldrich company, analytically pure, 99% by weight) and join in 2.2kg of deionized water and 3.0kg of 10% by weight of hydrochloric acid (chemically pure, produced by Beijing Chemical Plant), pH=1.9, stirring reaction 1h, obtain transparent tin sol;

[0068] Mix 1.80kg of silicon nitride, 5.52kg of zinc oxide powder and 10.0kg of deionized water under stirring to obtain a mixed slurry of zinc oxide and silicon nitride, then add the above tin sol and stir for 1 hour to obtain a carrier slurry;

[0069] 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.

[0070] The chemical composition of A2 is: the content of zinc oxide is 55.2% by weight, the con...

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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 stannic oxide, 5-40 wt% of silicon nitride, and 5-30 wt% of a metal accelerant selected from at least one of cobalt, nickel, iron and manganese. 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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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/835C10G45/06
Inventor 林伟田辉平王磊王鹏王振波郭晓峰
Owner CHINA PETROLEUM & CHEM CORP
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