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Hydro-upgrading catalyst carrier as well as preparation method and application thereof

A technology of catalyst support and hydrogenation modification, which is applied in the direction of catalyst support, molecular sieve catalysts, chemical instruments and methods, etc., can solve the problems of large steric hindrance, lower diesel yield, difficult removal, etc., and achieve improved dispersion, The effect of high aromatic latent content and high acid content

Inactive Publication Date: 2020-06-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To achieve deep and ultra-deep desulfurization, it is necessary to remove these sulfur-containing compounds with complex structures and large steric hindrances, and these sulfur-containing compounds are usually difficult to remove under high temperature and high pressure and other harsh hydrofining operating conditions. Hydrogen cracking will reduce diesel yield

Method used

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  • Hydro-upgrading catalyst carrier as well as preparation method and application thereof
  • Hydro-upgrading catalyst carrier as well as preparation method and application thereof
  • Hydro-upgrading catalyst carrier as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 21 grams of β molecular sieve, 15gY molecular sieve, 85 grams of macroporous alumina (pore volume 0.9mLg, specific surface area 355m 2 / g, hereinafter the same), 4g microcrystalline cellulose, and the mixed aqueous solution containing 4g guar gum and dilute nitric acid (wherein the mass concentration of nitric acid is 2.5%, and the mass concentration of guar gum is 0.5%) is put into rolling machine Mix and grind, roll into a paste, extrude, and dry the extruded strip at 120°C for 4 hours, and then bake at 530°C for 4 hours to obtain carrier Z1.

[0032]Weigh 4.5 g of 3-aminopropyltrimethoxysilane, add it into an aqueous solution containing 2 wt % ethanolamine and dissolve it to make the volume 80 mL, and obtain solution R1.

[0033] Weigh 100g of Z1, spray the solution R1 evenly on the carrier Z1, and after curing for 8 hours, dry it at 120°C for 2 hours to obtain the carrier GZ1. The composition and properties of the carrier are shown in Table 1 and Table 2.

[0034] ...

Embodiment 2

[0036] With 18 grams of β molecular sieves, 12gY molecular sieves, 85 grams of macroporous alumina, 3g microcrystalline cellulose, and containing 4g guar gum and dilute nitric acid (wherein the concentration of nitric acid is 2.5wt%, and the concentration of guar gum is 0.6wt%) The mixed aqueous solution was put into a roller compactor for mixing and grinding, and then rolled into a paste, extruded, dried at 120°C for 4 hours, and then calcined at 550°C for 4 hours to obtain carrier Z2.

[0037] Weigh 3.8 g of vinyltriethoxysilane, add it into an aqueous solution containing 1.5 wt % dimethyl sulfoxide, and dissolve it to make the volume 82 mL, and obtain a solution R2.

[0038] Weigh 100g of carrier Z2, spray the solution R2 evenly on the carrier Z2, after curing for 8 hours, dry at 110°C for 2 hours to obtain the modified carrier GZ2, the composition and properties of the carrier are shown in Table 1 and Table 2.

[0039] Carrier GZ2 was calcined at 290°C for 2.5 hours, impre...

Embodiment 3

[0041] With 15 grams of Y molecular sieves, 20 grams of β molecular sieves, 90 grams of macroporous alumina, 3g microcrystalline cellulose, and containing 2g guar gum and dilute nitric acid (wherein the concentration of nitric acid is 2.3wt%, and the concentration of guar gum is 0.8wt% %) of the mixed acidic aqueous solution was put into a roller compactor for mixing and grinding, and rolled into a paste, extruded, and the extruded strips were dried at 120°C for 4 hours, and then calcined at 520°C for 4 hours to obtain the carrier Z3.

[0042] Weigh 5 g of N-aminoethyl-3-aminopropylmethyldimethoxysilane, add it into an aqueous solution containing 2 wt % citric acid and dissolve it to make the volume 80 mL, and obtain solution R3.

[0043] Weigh 100g of hydrogenation modification catalyst support Z3, spray the solution R3 evenly on the support Z3, after curing for 6 hours, dry at 110°C for 2 hours to obtain the modified support GZ3, the composition and properties of the support ...

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Abstract

The invention discloses a hydro-upgrading catalyst carrier as well as a preparation method and application thereof. The catalyst carrier comprises a molecular sieve and organic silane loaded on the molecular sieve; wherein the weight content of the molecular sieve in the catalyst carrier is 5-35%, the weight content of organic silane is 1-5%, the molecular sieve is a Y-beta composite molecular sieve, and the mass ratio of the Y molecular sieve to the beta molecular sieve in the Y-beta composite molecular sieve is 1: 1-1: 3. The preparation method of the carrier comprises the following steps: (1) mixing and kneading a Y molecular sieve, a beta molecular sieve and macroporous alumina dry glue powder, molding, and drying and roasting after molding; and (2) introducing organic silane into thematerial roasted in the step (1), and drying to obtain the hydro-upgrading catalyst carrier. According to the catalyst prepared from the carrier, impurities in diesel oil are effectively removed and the comprehensive performance of the diesel oil is improved under the condition that the yield of the diesel oil is kept high.

Description

technical field [0001] The invention relates to a hydrogenation upgrading catalyst carrier and its preparation method and application, in particular to a catalyst carrier suitable for distillate oil hydrogenation upgrading and its preparation method and application. Background technique [0002] As crude oil becomes heavier and worse, the quality of secondary processed diesel fractions, especially catalytic cracking diesel oil, deteriorates. Depth, which in turn leads to further deterioration of the quality of FCC diesel. With the increasingly stringent environmental protection requirements and the continuous upgrading of diesel quality standards, especially the Euro IV and Euro V standards in the emission standards have put forward stricter requirements on the sulfur and aromatic content, cetane number, density, T95 and other indicators in diesel . In addition, people who live in alpine regions or in winter pay more attention to the low-temperature fluidity of diesel prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J32/00B01J31/26B01J29/80C10G49/08
CPCB01J31/26B01J29/80C10G49/08C10G2300/307C10G2400/04B01J2229/20B01J35/615B01J35/633
Inventor 唐兆吉杜艳泽樊鸿飞王继锋于正敏孙晓燕
Owner CHINA PETROLEUM & CHEM CORP
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