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Catalyst carrier, hydrogenation catalyst and heavy distillate oil hydro-upgrading method

A hydrogenation catalyst and carrier technology, applied in catalyst carriers, chemical instruments and methods, molecular sieve catalysts, etc., can solve the problems of little necessity and too much, etc.

Pending Publication Date: 2022-05-06
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is used to process oils that are heavier than conventional VGO but lighter than residual oils, too many large holes, less necessary

Method used

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  • Catalyst carrier, hydrogenation catalyst and heavy distillate oil hydro-upgrading method
  • Catalyst carrier, hydrogenation catalyst and heavy distillate oil hydro-upgrading method
  • Catalyst carrier, hydrogenation catalyst and heavy distillate oil hydro-upgrading method

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preparation example Construction

[0032] A second aspect of the present invention provides a method for preparing a carrier for a hydrogenation catalyst, the preparation method comprising:

[0033] S1, mixing pseudo-boehmite, amorphous silica-alumina oxide, beta-type molecular sieve, carboxymethyl cellulose and squash powder to obtain a mixed powder;

[0034] S2. Mix the mixed powder with water, knead and extrude to obtain extruded strips;

[0035] S3. Performing first drying and first roasting on the extruded strip.

[0036] According to the second aspect of the present invention, in step S1, the weight of the pseudo-boehmite, the amorphous silica-alumina oxide, the beta-type molecular sieve, the carboxymethyl cellulose, and the kale powder The ratio can be: 10-55: 15-85: 3-35: 1.0-5.0: 2-4;

[0037] In step S2, the amount of water may be 80-140 mL per 100 g of the mixed powder.

[0038] According to the second aspect of the present invention, the characteristics of the pseudo-boehmite may include: SiO 2 Th...

Embodiment 1

[0051] Take SD (taken from Qimao Catalyst Factory, produced by Shandong Aluminum Factory, dry basis 64.5%) 31.0g, silicon-aluminum material siral40 (taken from Catalyst Changling Branch, produced by SASOL, silicon oxide content 40.3%, dry basis 79.7%) 94.10g, beta-type molecular sieve beta-A (taken from Catalyst Changling Co., Ltd., silicon-aluminum ratio 25.8) 5.55g, carboxymethylcellulose A (M450, imported repacking) 2g, scallop powder 5g, mixed to obtain mixed powder . Take 125mL of deionized water and mix it with the mixed powder, use a small extruder to knead repeatedly 3 times, The extruded strips were obtained from the three-lobed orifice plate, and the extruded strips were dried at 120°C for 6 hours to obtain dry strips. The dry strips were taken and put into a roasting furnace, and treated at 550°C for 3 hours, keeping the air flow at 30L / h, cooled to room temperature and taken out, recorded as carrier AC.

[0052] Based on 100g of the carrier, a mixed aqueous sol...

Embodiment 2

[0054] Take SD (taken from Qimao Catalyst Factory, produced by Shandong Aluminum Factory, dry basis 64.5%) 46.5g, silicon-aluminum material siral40 (taken from Catalyst Changling Branch, produced by SASOL, silicon oxide content 40.3%, dry basis 79.7%) 69.01g, beta type molecular sieve beta-B (taken from Catalyst Changling Co., Ltd., silicon-aluminum ratio 56.3) 16.09g, carboxymethylcellulose B (Shandong Heda Co., Ltd.) 2.5g, scallop powder 5g, mixed to obtain Mix powder. Take 92mL of deionized water and mix it with the mixed powder, use a small extruder to knead repeatedly 3 times, The extruded strips were obtained from a trilobal orifice plate, and the extruded strips were dried at 115°C for 6 hours to obtain dry strips. The dry strips were taken and put into a roasting furnace, and treated at 600°C for 2.5 hours, keeping the air flow rate at 35L / h, take it out at room temperature, and record it as carrier BC.

[0055] Based on 100g of the carrier, a mixed aqueous solutio...

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Abstract

The invention relates to a carrier, a hydrogenation catalyst and a heavy distillate oil hydrogenation modification method. The hydrogenation catalyst disclosed by the invention comprises the carrier and an active metal component, the carrier has a bimodal pore structure and contains 3-30 wt% of a beta type molecular sieve; in the bimodal pore structure, the probable pore diameter of a large pore is in the range of 600-1200 nm, the probable pore diameter of a small pore is in the range of 4-9 nm, and the ratio of the probable pore diameter of the large pore to the probable pore diameter of the small pore is 120-200; the ratio of the pore volume of the large pores to the pore volume of the small pores is 2-4, the pore volume of the large pores is the accumulated pore volume of the pores with the pore diameter within the range of 50-150% of the pore diameter of the probable pores of the large pores, and the pore volume of the small pores is the accumulated pore volume of the pores with the pore diameter within the range of 50-150% of the pore diameter of the probable pores of the small pores. The hydrogenation catalyst has medium cracking activity, and is especially suitable for hydrotreating and hydro-upgrading of oil products with fraction distribution heavier than that of conventional VGO.

Description

technical field [0001] The invention relates to the field of catalyst or carrier, in particular, the invention relates to a catalyst carrier, a hydrogenation catalyst and a method for hydrogenation and upgrading of heavy distillate oil. Background technique [0002] As crude oil becomes heavier and worse, the conversion of heavy distillates has become a difficult point in refining catalysts and technologies. Hydrocracking technology is one of the classic means of hydroconversion of heavy distillate oil, which has the characteristics of high product quality, long service life and flexible operation. However, when used to process heavy fractions, especially heavy fractions with a dry point greater than 600°C, problems such as unstable catalyst performance and long service life often occur. [0003] Hydrocracking catalyst is a dual-functional catalyst, which has cracking activity and hydrogenation activity at the same time, that is, it contains acidic components and hydrogenat...

Claims

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Application Information

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IPC IPC(8): B01J29/78B01J35/10B01J32/00C10G45/12
CPCB01J29/7815C10G45/12C10G2400/08C10G2300/308B01J2229/186B01J35/615B01J35/635B01J35/69Y02P20/52
Inventor 董松涛胡志海梁家林赵广乐刘诗哲
Owner CHINA PETROLEUM & CHEM CORP
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