Catalyst having hydrogenation catalysis function, and preparation method and application thereof, and method for hydrogenation treatment of hydrocarbon oil

A catalyst and compound technology, applied in the field of catalysts and their preparation, can solve problems such as catalyst deactivation, and achieve the effects of high catalytic activity, high stability, and simple and easy method.

Active Publication Date: 2014-01-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the hydrotreating process of such raw oil, these impurities will be adsorbed on the surface of the catalyst to cover the active center or deposited in the pores of the catalyst to block the pores, resulting in the deactivation of the catalyst

Method used

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  • Catalyst having hydrogenation catalysis function, and preparation method and application thereof, and method for hydrogenation treatment of hydrocarbon oil
  • Catalyst having hydrogenation catalysis function, and preparation method and application thereof, and method for hydrogenation treatment of hydrocarbon oil
  • Catalyst having hydrogenation catalysis function, and preparation method and application thereof, and method for hydrogenation treatment of hydrocarbon oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0121] (1) 100.0g of pseudo-boehmite powder (purchased from Sinopec Catalyst Changling Branch, with a dry basis content of 69.5% by weight), 4.0g of methylcellulose (purchased from Zhejiang Haishen Chemical Co., Ltd.), 3.0g Squat powder, 20.0mL rare earth chloride (i.e., RECl 3 ) aqueous solution (with RE 2 o 3 Calculated, the rare earth content is 85.0g / L, in the total amount of rare earth: Ce 2 o 3 63% by weight, La 2 o 3 25% by weight, Pr 6 o 11 2.1% by weight, Nd 2 o 3 5.0% by weight, Sm 2 o 3 0.5% by weight, other rare earth 4.4% by weight) and 80g of deionized water were mixed evenly. The resulting mixture is fed into an extruder and extruded to obtain a wet strip. The extruded wet strip was placed in an oven and dried at 200° C. for 6 hours, thereby obtaining the carrier in the catalyst according to the present invention. The radial crushing strength, water absorption and δ value of the obtained carrier were measured, and the results are listed in Table ...

Embodiment 2

[0136] (1) In a 2L reaction tank, add 2000mL of aluminum sulfate solution and sodium metaaluminate solution (Al 2 o 3 content of 200g / L, caustic coefficient of 1.58) for precipitation reaction, the reaction temperature is 50°C, the pH value is 6.0, and the reaction residence time is 15 minutes; the obtained slurry is filtered with a vacuum filter. Add 20L of deionized water (at a temperature of 40±5°C) to the filter cake to rinse the filter cake for about 60 minutes. Add the washed filter cake to 1.5L deionized water and stir to form a slurry, then pump the slurry into the spray dryer for drying, control the outlet temperature of the spray dryer within the range of 100-110°C, and the material drying time for 2 minutes to obtain hydrated alumina, where Al 2 o 3 The content is 63% by weight, and it is determined to be amorphous by XRD analysis.

[0137] (2) 50.0g of pseudoboehmite powder (purchased from Sinopec Catalyst Changling Branch, with a dry basis content of 69.5% by ...

Embodiment 3

[0140] (1) 60.0g of pseudoboehmite (purchased from Sinopec Catalyst Changling Branch, with a dry basis content of 69.5% by weight), 40.0g of gibbsite (purchased from Guangxi Pingguo Aluminum Company, with a dry basis content of 64.5% by weight), 1.0g methyl cellulose (purchased from Zhejiang Haishen Chemical Co., Ltd.), 2.0g hydroxypropyl methylcellulose (purchased from Zhejiang Haishen Chemical Co., Ltd.), 3.0g kale powder and dissolved There are 20gLa (NO 3 ) 3 ·6H 2 O in 90 mL of deionized water and stirred well. The resulting mixture is fed into an extruder and extruded to obtain a wet strip. The obtained wet strip was placed in an oven and dried at 210° C. for 12 hours, so as to obtain the carrier in the catalyst according to the present invention. The radial crushing strength, water absorption and δ value of the obtained carrier were measured, and the results are listed in Table 1.

[0141] (2) 0.34 g of basic cobalt carbonate (CoO content is 70% by weight), 1.20 g ...

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Abstract

The invention provides a catalyst having a hydrogenation catalysis function, and a preparation method and an application thereof. The catalyst comprises a carrier, and at least one group VIII metal element and at least one group VIB metal element which are loaded on the carrier. The group VIII metal element and the group VIB metal element are separately in a non-uniform distribution along the radial cross section of the catalyst, wherein along the radial cross section of the catalyst, a ratio of Cexternal<VIII> to Cmiddle<VIII> is 0.1-0.9, and a ratio of Cexternal<VIB> to Cmiddle<VIB> is 0.1-0.85. The carrier is a hydrated alumina molded matter prepared from raw materials comprising at least one hydrated alumina, at least one rare earth element-containing compound and at least one cellulose ether. The invention also provides a method for hydrogenation treatment of a hydrocarbon oil. The catalyst provided by the invention shows higher catalytic activity, better catalytic stability and longer service life in a hydrogenation demetalization reaction of the hydrocarbon oil (especially a heavy hydrocarbon oil).

Description

technical field [0001] The invention relates to a catalyst with hydrogenation function, its preparation method and application, and also relates to a hydrocarbon oil hydrogenation treatment method. Background technique [0002] In addition to sulfur and nitrogen, heavy oil also contains a large amount of metal impurities such as Ni, V, Fe, Ca, asphaltene and colloid. During the hydrotreating process of such raw oil, these impurities will be adsorbed on the surface of the catalyst to cover the active centers or deposited in the pores of the catalyst to block the pores, thereby causing the deactivation of the catalyst. Therefore, the metal storage capacity and anti-coking performance of the catalyst used in the heavy oil hydrotreating process will directly affect the service life of the catalyst. [0003] US4760045 discloses a heavy oil hydrotreating catalyst, which contains a porous heat-resistant oxide carrier and at least one hydrogenation compound selected from Group VB, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/887B01J23/888C10G45/08
Inventor 曾双亲杨清河李丁健一王奎刘滨任亮胡大为聂红
Owner CHINA PETROLEUM & CHEM CORP
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