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

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, unstable structure, low desulfurization activity, etc., and achieve good wear resistance , less coke, and low sulfur content

Active Publication Date: 2018-04-13
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

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

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preparation example Construction

[0046] 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) adhering alumina Binder, silicon oxide source, first metal oxide, SAPO molecular sieve, water and 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 shaping, first drying and second (1) roasting to obtain a carrier; (3) introducing a precursor of an active metal on the carrier, and performing second drying and second roasting to obtain a catalyst precursor; (4) reducing the catalyst precursor under a hydrogen atmosphere , to obtain a desulfurization catalyst.

[0047] According to the present invention, the precursor of bismuth oxide is bismuth oxide or a substance that can be transforme...

Embodiment 1

[0078] This example is used to illustrate the preparation method of the desulfurization catalyst of the present invention.

[0079](1) Preparation of rare earth-bismuth sol. 0.5 kg of bismuth oxide (Beijing Chemical Plant, analytically pure) was added to 1.0 kg of 5% by weight nitric acid (chemically pure, produced by Beijing Chemical Plant) solution and stirred for 1 h to obtain a colorless and transparent bismuth sol. 0.5 kg of lanthanum oxide (Sinopharm Chemical Reagent Company, analytically pure) was dissolved in 0.2 kg of deionized aqueous solution and mixed with bismuth sol to obtain lanthanum bismuth sol.

[0080] (2) Prepare the carrier. The expanded perlite of 1.73kg (catalyst Nanjing Branch Company, containing 1.3kg on a dry basis) was added to 0.5kg of 2% by weight nitric acid solution, heated and stirred for 2 hours and then filtered to obtain the processed expanded perlite;

[0081] 1.6kg of pseudo-boehmite (catalyst Qilu branch, containing 1.2kg on a dry basis)...

Embodiment 2

[0088] This example is used to illustrate the preparation method of the desulfurization catalyst of the present invention.

[0089] (1) Preparation of rare earth-bismuth sol. 0.8 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.

[0090] (2) Prepare the carrier. 5.28kg of aluminum isopropoxide (Sinopharm Chemical Reagent Company, analytically pure, 98.5% by weight) was added to 13kg of deionized water for hydrolysis, and after being heated to 90°C for 1 hour, 2.4kg of 15% by weight of hydrochloric acid ( Chemically pure, produced by Beijing Chemical Plant) solution and stirred for 1 hour to form a colorless and transparent colloidal solution, called aluminum so...

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Abstract

The invention discloses a desulfurization catalyst, 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 alumina, silicon oxide source, first metal oxide, bismuth oxide, rare earth metal oxide, SAPO molecular sieve 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): B01J29/85C10G45/12
Inventor 王鹏孙言田辉平林伟王磊王振波
Owner CHINA PETROLEUM & CHEM CORP
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