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Residual oil hydrogenation protective agent carrier, catalyst and preparation method thereof

A technology for residual oil hydrogenation and protective agent, which is applied in the direction of catalyst activation/preparation, catalyst carrier, chemical instruments and methods, etc., and can solve problems such as low asphaltene conversion ability, poor pore connectivity, and complicated preparation process

Active Publication Date: 2020-10-27
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hydrogenation protection agent can obtain comprehensive metal removal effect in the application of heavy oil hydrotreating, and the hydrogenation protection agent is not easy to form carbon deposits, but the preparation process is complicated, the pore penetration is poor, and the asphaltene conversion ability is relatively low. Low

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  • Residual oil hydrogenation protective agent carrier, catalyst and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0050] Take by weighing 27.5 grams of activated carbon with a particle diameter of 8 microns, impregnate the activated carbon with equal volumes of the ammonium metavanadate aqueous solution containing 0.25 gram of ammonium metavanadate, the activated carbon after the impregnation and 145 grams of pseudoboehmite, 2 gram of turmeric powder, Mix 0.91 g of ammonium heptamolybdate evenly, add an appropriate amount of acetic acid aqueous solution with a mass concentration of 1.5%, mix and knead, extrude the molded product, dry the molded product at 100 ° C for 6 hours, and roast the dried product at 700 ° C for 5 hours in an air atmosphere to obtain intermediate body.

[0051] Weigh 100 grams of the above-mentioned intermediate, place it in 800 grams of ammonium bicarbonate solution, the mass concentration of the ammonium bicarbonate solution is in an aqueous solution of 19.5%, transfer the mixed material into an autoclave and seal it at a speed of 15°C / min After raising the temper...

Embodiment 2

[0054] With embodiment 1, just gac is changed into the charcoal that particle diameter is 10 microns, and add-on is 22.5 grams, and ammonium metavanadate add-on is 0.4 gram, and ammonium heptamolybdate add-on is 0.62 gram. The quality of ammonium bicarbonate solution is 700 grams, and the mass concentration of ammonium bicarbonate solution is 22.5%. The sealing pretreatment temperature is 90° C., the treatment time is 2 hours, the heat treatment temperature is 135° C., and the treatment time is 7 hours, and the residual oil hydrogenation protection agent carrier A2 is prepared. The properties of the carrier are shown in Table 1. Among them, the length of the rod-shaped modified alumina in the micron-scale pores of the carrier is mainly 3.0-8.0 μm, the length of the rod-shaped modified alumina on the outer surface of the main modified alumina is mainly 3-8 μm, and the rod-shaped modified alumina is mainly 3-8 μm. The diameter is about 100-280nm, the coverage rate of rod-shaped...

Embodiment 3

[0057] With embodiment 1, only gac particle diameter is 5 microns, and add-on is 34.5 grams, and ammonium metavanadate add-on is 0.6 gram, and ammonium heptamolybdate add-on is 0.83 gram. The mass of the ammonium bicarbonate solution was 750 grams, the mass concentration of the ammonium bicarbonate solution was 24.5%, the heat treatment temperature was 155° C., and the treatment time was 5 hours to obtain the residual oil hydrogenation protection agent carrier A3. The properties of the carrier are shown in Table 1. Among them, the length of the rod-shaped modified alumina in the micron-scale pores of the carrier is mainly 1.5-4.5 μm, the length of the rod-shaped modified alumina on the outer surface of the main modified alumina is mainly 3-8 μm, and the length of the rod-shaped modified alumina is mainly 3-8 μm. The diameter of the modified alumina is about 150-300nm, the coverage rate of rod-shaped modified alumina on the outer surface of the main modified alumina is about 84...

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Abstract

The invention discloses a residual oil hydrogenation protective agent carrier, a catalyst and a preparation method thereof. The carrier is a modified alumina-based carrier, and the modified alumina-based carrier contains a modification element and a first hydrogenation active metal component; the modified alumina-based carrier comprises main body modified alumina and rod-like modified alumina, themain body modified alumina is alumina with micron-sized pore channels, and at least part of the rod-like modified alumina is distributed on the outer surface of the main body modified alumina and inthe micron-sized pore channels with the pore diameter D of 5-10 [mu] m; the modification element is vanadium, and the first hydrogenation active metal component is molybdenum. The catalyst prepared byadopting the hydrogenation protective agent carrier has the characteristics of good macromolecular diffusion performance, strong impurity capacity, high asphaltene conversion rate and the like, and is particularly suitable for a residual oil hydrotreatment process.

Description

technical field [0001] The invention relates to the field of catalyst carrier preparation, in particular to a residual oil hydrogenation protection agent carrier, a catalyst and a preparation method thereof. Background technique [0002] At present, hydroprocessing is still the most important means to produce high-quality, environment-friendly petroleum products. The core of hydroprocessing technology is the catalyst. For the hydroprocessing of heavy components of petroleum (such as VGO, especially residual oil), the pore size and pore volume of the catalyst will directly affect the activity of the catalyst. [0003] The main function of the residual oil hydrogenation protection catalyst is to remove iron, calcium, nickel and vanadium in the residual oil. The carrier materials used in the existing residual oil hydrogenation protection catalysts are generally macroporous alumina and its modified products. The commonly used preparation methods of macroporous alumina include:...

Claims

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Application Information

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IPC IPC(8): B01J23/883B01J32/00B01J35/10B01J37/02B01J37/08C10G45/08
CPCB01J23/883B01J37/0207B01J37/08C10G45/08C10G2300/205C10G2300/202C10G2300/206C10G2300/1077B01J35/635B01J35/615
Inventor 隋宝宽季洪海彭冲吕振辉
Owner CHINA PETROLEUM & CHEM CORP
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