Hydrocarbon oil desulfurization catalyst, 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, reduced cracking and coke

Active Publication Date: 2016-08-17
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] 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

Method used

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

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preparation example Construction

[0043] The step (1) of the preparation method of the hydrocarbon oil desulfurization catalyst provided by the present invention is used to prepare the carrier.

[0044] 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 process described in step (1) Including: (i) contacting a heat-resistant inorganic oxide binder, silicon nitride, water and an acidic liquid to form a mixture: (ii) mixing rare earth-modified aluminum phosphorus molecular sieves, metal oxides and water, and mixing with the The mixture is contacted to obtain a carrier slurry.

[0045] Another specific embodiment is: the mixing process described in step (1) includes: (a) contacting a heat-resistant inorganic oxide binder, water and an acidic liquid to form a mixture: (b) oxidizing silicon nitride and metal mater...

Embodiment 1

[0073] This example is used to illustrate the method for preparing a hydrocarbon oil desulfurization catalyst of the present invention.

[0074] (1) Prepare the carrier. 4.25kg of zinc oxide powder (Beijing Chemical Plant, containing 4.2kg on a dry basis), 0.80kg of silicon nitride powder (purity>99.0%, Qinhuangdao Yinuo High-tech Material Development Co., Ltd.), 1.0kg of 20% by weight La 2 o 3 Modified SAPO-11 molecular sieve (containing dry basis 0.7kg, SiO 2 :Al 2 o 3 The molar ratio=1:1, denoted as La-SAPO-11) and 6.9kg of deionized water were mixed, and after stirring for 30 minutes, a slurry containing zinc oxide, silicon nitride and La-SAPO-11 was obtained;

[0075] After adding 3.33kg of alumina (Shandong Aluminum Factory, containing 2.50kg on a dry basis) to 7.5kg of deionized water and mixing evenly, add 625ml of 30% by weight hydrochloric acid (Beijing Chemical Plant, chemically pure) and stir to make pH = 1.8, acidify After 1h, the temperature was raised to 80...

Embodiment 2

[0081] This example is used to illustrate the method for preparing a hydrocarbon oil desulfurization catalyst of the present invention.

[0082] 3.84kg of zinc oxide powder (Beijing Chemical Plant, containing 3.8kg on a dry basis), 2.11kg of silicon nitride powder (purity>99.0%, Qinhuangdao Yinuo High-tech Material Development Co., Ltd.), 0.43kg of 10% by weight CeO 2 Modified SAPO-31 (containing dry basis 0.30kg, SiO 2 :Al 2 o 3 The mol ratio=0.5:1, denoted as Ce-SAPO-31) and the deionized water of 7.8kg are mixed, after stirring for 30 minutes, obtain the slurry that contains zinc oxide, silicon nitride and Ce-SAPO-31;

[0083] 3.60kg of zirconium tetrachloride (Beijing Chemical Plant, analytically pure) is slowly added to 4.1kg of 5% by weight nitric acid solution to make pH=2.0, and slowly stirred to avoid the precipitation of zirconia crystals to obtain colorless and transparent zirconium Sol;

[0084] The above slurry and the zirconium sol were mixed and stirred for ...

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Abstract

The invention discloses a hydrocarbon oil desulfurization catalyst, a preparation method thereof and a hydrocarbon oil desulfurization method. The hydrocarbon oil desulfurization catalyst comprises, calculated by the total weight, a) 5-35 wt.% of a heat-resistant inorganic oxide, 2) 10-70 wt.% of metal oxide, 3) 2-40 wt% of silicon nitride, 4) 5-30 wt% of a metal promoter and 5) 1-20 wt% of rare earth modified aluminophosphate molecular sieve. The hydrocarbon oil desulfurization catalyst has better stability, higher desulfurization activity, better wear resistance and long 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] The sulfur oxides produced by the combustion of sulfur in vehicle fuels will inhibit the activity of noble metal catalysts in vehicle exhaust converters and cause irreversible poisoning. As a result, the vehicle exhaust contains unburned non-methane hydrocarbons, nitrogen oxides and carbon monoxide, and these exhaust gases are easily catalyzed by sunlight to form photochemical smog and cause acid rain. At the same time, sulfur oxides in the atmosphere are also the main cause ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/85C10G45/12
Inventor 姜秋桥田辉平林伟王鹏孙言王振波
Owner CHINA PETROLEUM & CHEM CORP
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