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Desulfurization catalyst, preparation method thereof and method for desulfurizing hydrocarbon oil by employing same

A technology for desulfurization catalysts and oxides, applied in the direction of refined hydrocarbon oil, molecular sieve catalysts, chemical instruments and methods, etc., can solve the problems of poor wear resistance, low desulfurization activity, unstable structure, etc., and achieve good wear resistance , low sulfur content, less coke

Active Publication Date: 2016-04-20
CHINA PETROLEUM & CHEM CORP +1
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  • 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 desulfurization catalyst and its preparation method and a method for desulfurization of hydrocarbon oil

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  • Desulfurization catalyst, preparation method thereof and method for desulfurizing hydrocarbon oil by employing same
  • Desulfurization catalyst, preparation method thereof and method for desulfurizing hydrocarbon oil by employing same
  • Desulfurization catalyst, preparation method thereof and method for desulfurizing hydrocarbon oil by employing same

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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 antimony oxide, a rare earth metal compound, water and an acidic liquid to obtain a rare earth-antimony sol; Binder, silicon oxide source, first metal oxide, aluminum phosphorus molecular sieve, water and 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 formed, first dried and The first calcination obtains the carrier; (3) introduce the precursor of the active metal on the carrier, and carry out the second drying and the second calcination to obtain the catalyst precursor; (4) place the catalyst precursor under a hydrogen atmosphere Reduction to obtain a desulfurization catalyst.

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

Embodiment 1

[0075] This example is used to illustrate the preparation method of the desulfurization catalyst of the present invention.

[0076] (1) Preparation of rare earth-antimony sol. 0.5 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. 0.5 kg of lanthanum oxide powder (Sinopharm Chemical Reagent Company, analytically pure) was dissolved in 0.2 kg of deionized aqueous solution and mixed with antimony sol to obtain lanthanum antimony sol.

[0077](2) Prepare the carrier. 2.28kg of zirconium tetrachloride (Beijing Chemical Plant, analytically pure) is slowly added to 3.1kg 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;

[0078] Mix 1.56kg of kaolin (Catalyst Qilu Branch, contain...

Embodiment 2

[0085] This example is used to illustrate the preparation method of the desulfurization catalyst of the present invention.

[0086] (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;

[0087] (2) Prepare the carrier. 3.73kg of crystalline tin tetrachloride (SnCl 4 ·5H 2 O, AlfaAesar company, 99% by weight) was slowly added to 5.0 kg of hydrochloric acid solution with a concentration of 3% by weight to make pH=1.5, and stirred slowly to avoid the precipitation of tin oxide crystals, and obtained a colorless and transparent tin sol;

[0088] Add 1.24kg of diatomite (catalyst Nanjing branch, containing 1.20kg on a dry basis) to 3.0kg of deionized water and mix evenly, then add 75ml of 30% by weight hydrochloric aci...

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Abstract

The invention discloses a desulfurization catalyst, a preparation method thereof and application of the desulfurization catalyst to desulfurize sulfur-containing hydrocarbon oil. The desulfurization catalyst contains a non-aluminium oxide, a silicon oxide source, a first metal oxide, antimony oxide, a rare earth metal oxide, a phosphorus-aluminium molecular sieve and an active metal. The XRD spectrum of the desulfurization catalyst possesses the characteristic peak of a rare earth-antimony composite oxide. The desulfurization catalyst possesses relatively good 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 Applications(China)
IPC IPC(8): B01J29/85C10G45/12
Inventor 王鹏林伟孙言田辉平王磊王振波
Owner CHINA PETROLEUM & CHEM CORP
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