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Desulfurization catalyst, preparation method thereof and hydrocarbon oil desulfurization method

A desulfurization catalyst and oxide technology, which is applied in the fields of refined hydrocarbon oil, molecular sieve catalyst, chemical instruments and methods, etc., can solve the problems of poor wear resistance, low desulfurization activity, unstable structure, etc., and achieve good desulfurization activity and activity. The effect of stability

Active Publication Date: 2016-05-11
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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  • Desulfurization catalyst, preparation method thereof and hydrocarbon oil desulfurization method

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preparation example Construction

[0042] The present invention also provides a method for preparing the desulfurization catalyst of the present invention, the method comprising: (1) mixing the rare earth metal compound, the first metal oxide, the precursor of the second metal oxide and water to obtain a slurry; (2) mixing Alumina binder, layered clay, water and acidic liquid are mixed, and the slurry and molecular sieve with FAU structure are contacted to form a carrier slurry, and then the carrier slurry is formed, first dried and first calcined to obtain Carrier; (3) introducing the precursor of the metal promoter on the carrier, and carrying out the second drying and the second roasting to obtain the catalyst precursor; (4) reducing the catalyst precursor under a hydrogen-containing atmosphere to obtain desulfurization catalyst.

[0043] In the present invention, preferably, the alumina binder is alumina or a substance converted into alumina under the conditions of the first calcination, such as hydrated al...

Embodiment 1

[0077] This example is used to illustrate the method for preparing a desulfurization catalyst of the present invention.

[0078] (1) Prepare the carrier. With 4.05kg of zinc oxide powder (produced by Beijing Chemical Plant, containing 4.0kg dry basis), 0.50kg of lead oxide powder (Sinopharm Chemical Reagent Company, analytically pure) and 301g of anhydrous lanthanum chloride (Sinopharm Chemical Reagent Company, analysis Pure) was mixed and stirred uniformly in 8.5kg of water to obtain a slurry containing zinc oxide, lead oxide and lanthanum chloride;

[0079] Add 1.97kg of retort earth (Qilu Petrochemical Catalyst Factory, containing 1.60kg on a dry basis) to 1.6kg of deionized water and mix evenly, then add 100ml of 30% by weight hydrochloric acid (Beijing Chemical Plant, chemically pure) and stir to make pH=2.0 , acidified for 1 hour and then heated to 80°C for 2 hours to obtain a mixture containing rectorite;

[0080] After mixing 1.60kg of alumina (Shandong Aluminum Fact...

Embodiment 2

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

[0087] With 3.84kg of zinc oxide powder (Beijing Chemical Plant, containing 3.8kg on a dry basis), 0.90kg of bismuth oxide powder (Sinopharm Chemical Reagent Company, analytically pure) and 794g of cerium nitrate hexahydrate (Sinopharm Chemical Reagent Company, analytically pure) Mix and stir evenly in 8.5kg of water to obtain a slurry containing zinc oxide, bismuth oxide and cerium nitrate;

[0088] Add 1.85kg of retort earth (Catalyst Nanjing Branch, containing 1.50kg on a dry basis) to 1.6kg of deionized water and mix evenly, then add 100ml of 30% by weight hydrochloric acid and stir to make pH = 1.8, acidify for 1 hour and then heat up to 80°C Aging for 2h to obtain a mixture containing retort soil;

[0089] After mixing 2.40kg of alumina (Shandong Aluminum Factory, containing 1.8kg on a dry basis) and 4.8kg of deionized water, add 275ml of 30% by weig...

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Abstract

The invention discloses a desulfurization catalyst, a preparation method thereof and a hydrocarbon oil desulfurization method. Based on the total weight of the desulfurization catalyst, the desulfurization catalyst is prepared from the following components by weight: 1) 5-35% of aluminum oxide, 2) 5-35% of pillared clay, 3) 10-70% of a first metal oxide, 4) 2-20% of a second metal oxide, 5) 5-30% of a metal accelerator, 6) 0.5-10% of rare earth metal oxide based on rare earth oxide, and 7) 1-20% of a molecular sieve with an FAU structure. The desulfurization catalyst is better in desulfurization 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): B01J29/14B01J29/16C10G45/12
Inventor 田辉平林伟王鹏孙言王磊严加松
Owner CHINA PETROLEUM & CHEM CORP
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