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Macroporous residual oil hydrodemetallization catalyst containing TiO2

A technology for hydrodemetallization and catalyst, which is applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc. Cumbersome and other problems, to achieve the effect of improving hydrodemetallization performance and high desulfurization activity

Active Publication Date: 2016-10-05
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The Chinese invention patent application with the application number 201010220850.4 discloses a preparation method of a macroporous hydrotreating catalyst, which is prepared by kneading two kinds of pseudo-boehmite dry rubber powder with different pore volumes, and then loaded with active metals, one of which is Pseudo-boehmite has a large pore volume and can provide pores with a pore diameter of 30nm-100nm. The second pseudo-boehmite provides micron-sized pores. By adjusting the mixing ratio of the two, it can produce high-strength, high-density, and Hydrogenation protective agent with large pore volume, but it has high requirements for pseudo-boehmite raw material and relatively cumbersome process
[0006] CN102626659A provides a kind of TiO 2 -Al 2 o 3 The preparation method conforms to the carrier. In this method, titanium hydroxide and non-ionic surfactant are added to deionized water and mixed, and nitric acid is added to adjust the pH of the sol to 0.5-5. 0.1-1.5MPa, the reaction time is 1-30h for hydrothermal reaction, the reaction is completed and centrifuged to obtain carbon particles with a particle size of 200-800nm, the carbon particles are added to the sol and kneaded with pseudo-boehmite evenly, extruded, Drying and roasting to obtain TiO 2 -Al 2 o 3 Carrier, this method uses acid to affect the pore volume, and the preparation process is relatively cumbersome
This method has strict requirements on the precursor alumina raw material, needs to add more surfactants, and the cost of industrial application is relatively high

Method used

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  • Macroporous residual oil hydrodemetallization catalyst containing TiO2
  • Macroporous residual oil hydrodemetallization catalyst containing TiO2

Examples

Experimental program
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Effect test

Embodiment 1

[0058] Weigh 500 g of macroporous pseudo-boehmite dry rubber powder, add 15 g of turnip powder, 20 g of asphalt residue powder, 5 g of wood activated carbon, and mix evenly; add 20 g of titanium hydroxide and 25 g of methylcellulose into 400 g of clean water, Mix and slowly add to the aforementioned materials, knead to form a plastic body, and then extrude into a clover shape with a diameter of 1.6mm on a front-extrusion single-screw extruder. Dry at 120° C. for 2.5 hours, then place in a roasting furnace, and keep the temperature at 800° C. for 3 hours to obtain a carrier. Weigh 100g of the above-mentioned alumina carrier, add 150ml of Mo-Ni-NH 3 solution (with MoO 3 10wt%,NiO 3 3.5wt%) impregnation, wherein, Mo-Ni-NH 3 The configuration of the solution is as follows: add 24.85g of ammonium molybdate to 90ml of ammonia water with a concentration of 20%, stir and dissolve completely, add 28.35g of nickel nitrate and stir until completely dissolved, add water to make up to 1...

Embodiment 2

[0060] Weigh 500g of macroporous pseudo-boehmite dry rubber powder, add 10g of turnip powder and 5g of asphalt residue powder and mix evenly; add 20g of titanium hydroxide, 20g of methyl cellulose and 5 hydroxymethyl cellulose into 400g of clean water , mixed slowly and added to the aforementioned materials, kneaded into a plastic body, and then extruded into a clover shape with a diameter of 1.6mm on a front-extrusion single-screw extruder. Dry at 120° C. for 2.5 hours, then place in a roasting furnace, and keep the temperature at 700° C. for 10 hours to obtain a carrier. Weigh 100g of the above-mentioned alumina carrier, add 150ml of Mo-Ni-NH 3 solution (with MoO 3 4wt%,NiO 3 1wt%) impregnation, wherein, Mo-Ni-NH 3 The configuration of the solution is as follows: add 24.85g of ammonium molybdate to 90ml of ammonia water with a concentration of 20%, stir and dissolve completely, add 28.35g of nickel nitrate and stir until completely dissolved, add water to make up to 150ml...

Embodiment 3

[0062] Weigh 500g of macroporous pseudo-boehmite dry rubber powder, add 35g of turnip powder, 20g of asphalt residue powder, 5g of apricot shell activated carbon, and mix evenly; add 50g of titanium hydroxide and 10g of methylcellulose into 4000g of clean water , mixed and slowly added to the aforementioned materials, kneaded into a plastic body, and then extruded into a clover shape with a diameter of 1.6mm on a front-extrusion single-screw extruder. Dry at 120° C. for 2.5 hours, then place in a roasting furnace, and keep the temperature at 950° C. for 3 hours to obtain a carrier. Weigh 100g of the above-mentioned alumina carrier, add 150ml of Mo-Ni-NH 3 solution (with MoO 3 13wt%,NiO 3 5wt%) impregnation, wherein, Mo-Ni-NH 3 The configuration of the solution is as follows: add 33.7g of ammonium molybdate to 90ml of ammonia water with a concentration of 20%, stir and dissolve completely, add 42g of nickel nitrate and stir until completely dissolved, add water to make up to...

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Abstract

The invention relates to a preparation method of a macroporous residual oil hydrodemetallization catalyst containing TiO2. The method comprises the following steps: pseudo-boehmite, sesbania cannabina powder, a pore-enlarging agent, a binder and a nano-grade titanium hydroxide mixed aqueous solution are mixed; the mixture is molded; the molded product is roasted into a carrier; the carrier is impregnated with a metal active component; and the product is roasted, such that the macroporous residual oil hydrodemetallization catalyst containing TiO2 is obtained.

Description

technical field [0001] The invention belongs to a preparation method of a residual oil hydrogenation demetallization catalyst, which is suitable for use in a fixed-bed residual oil hydrogenation device, and its main function is to complete the residue oil hydrogenation demetallization process, which can effectively improve the demetallization performance of the catalyst. Background technique [0002] With the trend of crude oil becoming heavier and inferior, the deep processing technology of heavy oil has been highly valued by refining experts at home and abroad. The key to determining the technical level of hydroprocessing is the level of catalyst performance, especially for heavy oil hydroprocessing catalysts that require good demetallization, desulfurization, and denitrogenation activities. Metal impurities in heavy oil mainly exist in colloids and asphaltenes. These substances have large molecular weight, complex structure, and difficult diffusion. Therefore, the catalys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/889B01J35/10
Inventor 于双林赵愉生程涛崔瑞利谭青峰姚远张春光由慧玲赵元生范建光周志远张志国王燕刘佳澎魏静
Owner PETROCHINA CO LTD
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