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Desulphurization catalyst and preparation method thereof as well as hydrocarbon oil desulfurizing method

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: 2016-05-18
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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  • Desulphurization catalyst and preparation method thereof as well as hydrocarbon oil desulfurizing method
  • Desulphurization catalyst and preparation method thereof as well as hydrocarbon oil desulfurizing method
  • Desulphurization catalyst and preparation method thereof as well as hydrocarbon oil desulfurizing method

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preparation example Construction

[0041] 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 antimony oxide, a rare earth metal compound, water and an acidic liquid to obtain a rare earth-antimony sol; (2) adhering alumina 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-antimony sol to obtain a carrier mixture, and the carrier mixture is subjected to shaping, first drying and first calcining, 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.

[0042] According to the present invention, the precursor of antimony oxide is antimony oxide or a substance that can be transformed into...

Embodiment 1

[0073] This example is used to illustrate the preparation method of the desulfurization catalyst of the present invention.

[0074] (1) Preparation of rare earth-antimony sol. 1.45 kg of antimony 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 antimony 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 antimony sol to obtain lanthanum antimony sol.

[0075] (2) Prepare the carrier. Mix 2.40kg of kaolin (catalyst Qilu branch, containing 2.0kg on a dry basis), 2.0kg of pseudoboehmite (catalyst Nanjing branch, containing 1.50kg on a dry basis) and 9.0kg of deionized water under stirring Finally, add 200 g of concentrated nitric acid (Beijing Chemical Plant, chemically pure) and stir to make the p...

Embodiment 2

[0082] This example is used to illustrate the preparation method of the desulfurization catalyst of the present invention.

[0083] (1) Preparation of rare earth-antimony sol. 0.6kg of antimony oxide and 0.651kg of neodymium nitrate hexahydrate (Sinopharm Chemical Reagent Company, content greater than 99.0% by weight) were added to 2.7kg of 15% by weight of dilute nitric acid and stirred for 1 hour to obtain a transparent neodymium-antimony sol;

[0084](2) Prepare the carrier. After adding 1.24kg of diatomite (catalyst Nanjing branch, containing 1.20kg on a dry basis) into 3.0kg of deionized water and mixing evenly, add 75ml of 30% by weight hydrochloric acid (Beijing Chemical Plant, chemically pure) and stir to make the pH = 2.0, acidified for 1 hour and then heated to 80°C for 2 hours of aging to obtain treated diatomite;

[0085] After mixing 2.4kg of hydrated alumina (Catalyst Nanjing Branch, containing 1.8kg on a dry basis) and 9.0kg of deionized water under stirring, ...

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Abstract

The invention discloses a desulphurization catalyst, a preparation method of the desulphurization catalyst and the desulphurization catalyst obtained by the method, and an application of the desulphurization catalyst in sulfur-containing hydrocarbon oil desulphurization. The desulphurization catalyst contains alumina, a silicon oxide source, a first metal oxide, antimony oxide, a rare-earth metal oxide and active metal; and an XRD spectrum of the desulphurization catalyst has a characteristic peak of a rare earth-antimony composite oxide. The desulphurization catalyst has better desulphurization activity and activity 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 Applications(China)
IPC IPC(8): B01J23/843B01J23/847B01J23/86B01J23/887B01J23/888B01J23/34C10G45/08
Inventor 龙军王鹏田辉平林伟孙言王磊
Owner CHINA PETROLEUM & CHEM CORP
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