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Hydrogenation protection catalyst, and preparation method and application thereof

A hydrogenation protection and catalyst technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc.

Active Publication Date: 2015-02-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still much room for improvement in the performance of such catalysts when used in heavy oil processing

Method used

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  • Hydrogenation protection catalyst, and preparation method and application thereof
  • Hydrogenation protection catalyst, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Weigh 200g of hydrated alumina (commercially purchased from Changling Oil Refinery Catalyst Plant, 65% by weight on a dry basis. The pore volume is 1.05 ml / g, and the specific surface area is 230 m 2 / gram, the diameter of the most possible pores is 20nm), 70 grams of α-alumina powder (formed by roasting the hydrated alumina used in this example at 1400 ° C for 6 hours), 9 grams of scallop powder and 15 grams of borax mixed , mix this mixture with 330 ml of ammonia solution with a concentration of 4% at room temperature, after mixing evenly, knead in a twin-screw extruder and extrude with a cylindrical orifice of φ2. After drying for 4 hours, it was calcined at 850°C for 2 hours to obtain carrier T-1 of the present invention. The specific surface, probable pore diameter, pore volume, and pore distribution of carrier T-1 were measured, and the results are shown in Table 1.

Embodiment 2

[0058] Weigh 180g dry rubber powder (commercially purchased from Changling Refinery Catalyst Plant, dry basis is 65% by weight. Pore volume is 1.05 ml / g, specific surface area is 285 m 2 120 grams of α-alumina powder (commercially purchased from Beijing Shunchuan Environmental Protection Technology Co., Ltd.), 9 grams of astragalus powder and 8 grams of boron oxide are mixed, and then add 10 grams of boric acid 330 milliliters of sodium aqueous solution, mixed evenly, kneaded in a twin-screw extruder and extruded with a cylindrical orifice plate of φ2.0mm, after that, the wet strip was dried at 120°C for 4 hours and then roasted at 850°C for 2 hours to obtain the present invention Carrier T-2. The specific surface, probable pore diameter, pore volume, and pore distribution of carrier T-2 were measured, and the results are shown in Table 1.

Embodiment 3

[0060] Weigh 150g of dry rubber powder (commercially purchased from Yantai Henghui Chemical Co., Ltd., the dry basis is 68% by weight. The pore volume is 1.08 ml / g, and the specific surface area is 188 m 2 / gram, the diameter of the most possible pores is 22nm), 150 grams of α-alumina powder (commercially purchased from Beijing Shunchuan Environmental Protection Technology Co., Ltd.), 9 grams of asparagus powder, 9 grams of methylcellulose and 20 grams of borax mixed, Then add 330 milliliters of aqueous solution containing 35 grams of ammonium bicarbonate, mix well and then shape according to the rolling ball molding method to obtain spherical particles with a particle size of 5.5-6.5 mm. The wet strip was dried at 120°C for 4 hours and then calcined at 800°C for 2 hours to obtain carrier T-3 of the present invention. The specific surface, probable pore diameter, pore volume, and pore distribution of carrier T-3 were measured, and the results are shown in Table 1.

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Abstract

The invention discloses a hydrogenation protection catalyst, and a preparation method and application thereof. The catalyst comprises a carrier and hydrogenation active metal compositions supported by the carrier, wherein the carrier comprises aluminium oxide and an alkali earth metal composition; by using a mercury intrusion method for characterizing, the carrier has the pore volume of 0.5-1 mL / g, the specific surface of 30-150 m<2> / g and the most probable aperture of 80-300 nm; and the carrier shown double-peak pore distribution at the diameter of 12-15 nm and the diameter of 100-200 nm, the pore volume of holes with the diameter of 12-15 nm accounts for 10-22% of the total pore volume, and the pore volume of holes with the diameter of 100-200 nm accounts for 40-70%. Compared with the prior art, the provided hydrogenation protection catalyst has relatively good metal carrying performance.

Description

technical field [0001] The invention relates to a hydrogenation protection catalyst and its preparation method and application. Background technique [0002] As the quality of crude oil deteriorates, the content of impurities such as colloids, asphaltenes, and organometallic compounds in crude oil increases. The presence of these impurities can easily cause a rapid decline in catalyst activity and even deactivation. An effective way to solve this problem is to fill the upper part of the hydrogenation catalyst bed with a protective agent with hydrogenation activity. The hydrogenation protection catalyst with larger pore volume and pore diameter has strong metal and carbon capacity, which can protect the downstream hydrogenation main agent and prolong the service life of the main agent. [0003] Examples of hydrogenation protection catalysts and their preparation in the prior art are as follows: [0004] CN200610113493.5 discloses a hydrogenation protecting agent and its pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J21/04B01J23/882B01J23/883B01J23/888C10G45/08
Inventor 刘佳杨清河胡大为孙淑玲曾双亲王奎戴立顺聂红李大东
Owner CHINA PETROLEUM & CHEM CORP
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