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A kind of desulfurization catalyst and its preparation method and the method of hydrocarbon oil desulfurization

A desulfurization catalyst and oxide technology, applied in the field of hydrocarbon oil desulfurization, can solve the problems of poor wear resistance, low desulfurization activity, unstable structure, etc., and achieve good wear resistance, low sulfur content, and less coke formation. amount of effect

Active Publication Date: 2018-06-19
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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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 desulfurization catalyst and its preparation method and a method for desulfurization of hydrocarbon oil

Method used

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  • A kind of desulfurization catalyst and its preparation method and the method of hydrocarbon oil desulfurization
  • A kind of desulfurization catalyst and its preparation method and the method of hydrocarbon oil desulfurization
  • A kind of desulfurization catalyst and its preparation method and the method of hydrocarbon oil desulfurization

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preparation example Construction

[0043] The present invention also provides a preparation method of the desulfurization catalyst provided by the present invention, the method comprising: (1) mixing a precursor of bismuth oxide, a rare earth metal compound, water and an acidic liquid to obtain a rare earth-bismuth sol; (2) mixing a non-aluminum paste A binder, a silicon oxide source, a first metal oxide, water and an acidic liquid are mixed to form a slurry, and contacted with the rare earth-bismuth sol to obtain a carrier mixture, and the carrier mixture is subjected to molding, first drying and first calcination, Obtain a carrier; (3) introduce the precursor of the active metal on the carrier, and 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 desulfurization catalyst.

[0044] According to the present invention, the precursor of bismuth oxide is bismuth oxide or a substance that can be transfor...

Embodiment 1

[0076] This example is used to illustrate the preparation method of the desulfurization catalyst of the present invention.

[0077] (1) Preparation of rare earth-bismuth sol. 1.45 kg of bismuth oxide (Beijing Chemical Plant, analytically pure) was added to 3.5 kg of 5% by weight nitric acid (Beijing Chemical Plant, chemically pure) solution and stirred for 1 h to obtain a colorless and transparent bismuth sol. 430 g of lanthanum carbonate (Sinopharm Chemical Reagent Company, lanthanum oxide content 45% by weight) was dissolved in 0.2 kg of deionized aqueous solution and mixed with bismuth sol to obtain lanthanum bismuth sol.

[0078] (2) Prepare the carrier. 2.84kg of zirconium tetrachloride (Beijing Chemical Plant, analytically pure) is slowly added to 3.1kg of a concentration 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;

[0079] Mix 2.40kg of kaolin ...

Embodiment 2

[0086] This example is used to illustrate the preparation method of the desulfurization catalyst of the present invention.

[0087] (1) Preparation of rare earth-bismuth sol. 0.9 kg of bismuth oxide was added to 2.0 kg of 15% by weight hydrochloric acid solution and stirred for 1 hour to form a colorless and transparent bismuth sol. Add 300 g of cerium oxide (Sinopharm Chemical Reagent Company, analytically pure) into the bismuth sol, stir and mix evenly, then add 25% by weight ammonia solution dropwise until the cerium bismuth sol is formed.

[0088] (2) Prepare the carrier. 4.04kg of titanium tetrachloride (Beijing Chemical Plant, analytically pure) is slowly added to 3.1kg of a concentration of 5% by weight nitric acid solution to make pH=1.0, and slowly stirred to avoid the precipitation of titanium oxide crystals to obtain colorless and transparent titanium Sol;

[0089] Mix 1.63kg of expanded perlite (catalyst Nanjing branch, containing 1.6kg on a dry basis) with 2.5k...

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Abstract

The invention discloses a desulfurization catalyst, and also discloses a preparation method of the desulfurization catalyst, a desulfurization catalyst obtained by the method, and an application of the desulfurization catalyst in desulfurization of sulfur-containing hydrocarbon oil. The desulfurization catalyst contains non-aluminum oxide, silicon oxide source, first metal oxide, bismuth oxide, rare earth metal oxide and active metal; there are characteristic peaks of rare earth-bismuth composite oxide in the XRD spectrum of the desulfurization catalyst. The desulfurization catalyst has better desulfurization activity and desulfurization stability.

Description

technical field [0001] The present invention relates to a desulfurization catalyst and a preparation method thereof and a method for desulfurizing hydrocarbon oil, in particular to a desulfurization catalyst, a method for preparing a desulfurization catalyst and a desulfurization catalyst obtained by the method, and using the desulfurization catalyst for desulfurization of hydrocarbon oil Methods. 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 of acid rain. one. As people pay more and more attention to environmental pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/843C10G45/06
Inventor 王鹏孙言田辉平林伟王磊许明德
Owner CHINA PETROLEUM & CHEM CORP
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