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Hydrogenation catalyst support and preparation method thereof

A hydrogenation catalyst, carrier technology, applied in molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., to achieve the effects of adjustable process conditions, flexible product plans, and good product quality

Inactive Publication Date: 2018-07-10
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The supported catalyst with MCM-22 as the acidic component has not been disclosed or reported in the reactions of hydrocracking, hydroisomerization and hydroupgrading.

Method used

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  • Hydrogenation catalyst support and preparation method thereof
  • Hydrogenation catalyst support and preparation method thereof
  • Hydrogenation catalyst support and preparation method thereof

Examples

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Effect test

preparation example Construction

[0028] The preparation method of hydrogenation catalyst carrier of the present invention, comprises the steps:

[0029] (1) Hydrogen-type molecular sieves are steamed at a temperature of 300-700°C for 1-6 hours. The optimum condition is that the treatment temperature is 500-600°C and the treatment time is 3-5 hours.

[0030] (2) Molecular sieves are treated with acid or alkali. The acid can be one or more of nitric acid, hydrochloric acid, citric acid, oxalic acid, and acetic acid. The acid concentration is 0.01-1mol / L. 20-60 minutes. The alkali can be one or both of sodium hydroxide and potassium hydroxide, the concentration is 0.01-1mol / L, the treatment temperature is room temperature-100°C, and the treatment time is 20-60 minutes.

[0031] (3) The treated molecular sieve is mixed with amorphous heat-resistant oxide, binder and extrusion aid in a certain proportion, shaped, then dried and calcined to make a catalyst carrier.

[0032] The hydrogenation catalyst carrier in ...

Embodiment 1

[0034] Weigh 20 g of MCM-22 molecular sieve. In the high-temperature treatment furnace, water vapor was introduced to treat, and the temperature of the treatment furnace was kept at 550° C., and the hydrothermal treatment was carried out for 4 hours. The molecular sieves were treated with 200 ml of 1 mol / L oxalic acid solution at room temperature for 60 min. Dry at 100°C for 4 hours, and calcined at 550°C for 4 hours to obtain the modified molecular sieve M1. Take 10 g of M1 modified molecular sieve, 50 g of amorphous silica-alumina, 20 g of macroporous alumina and 20 g of small-pore alumina, add 4 g of nitric acid with a mass concentration of 65%, and carry out kneading and molding. The formed catalyst carrier was dried at 120°C for 4 hours, and calcined at 550°C for 4 hours to obtain the hydrogenation catalyst carrier S1.

Embodiment 2

[0036]Weigh 50 g of MCM-22 molecular sieve. In the high-temperature treatment furnace, water vapor is introduced to treat, and the treatment furnace is kept at 600° C., and the hydrothermal treatment is performed for 1 hour. The molecular sieves were treated with 400 ml of 1 mol / L citric acid solution at room temperature for 50 min. Dry at 100°C for 4 hours, and bake at 550°C for 4 hours to obtain the modified molecular sieve M2. Take 30g of M2 modified molecular sieve, 50g of macroporous alumina and 20g of small pore alumina, add 4g of nitric acid with a mass concentration of 65%, and carry out kneading and molding. The formed catalyst carrier was dried at 120°C for 4 hours, and calcined at 600°C for 4 hours to obtain the hydrogenation catalyst carrier S2.

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Abstract

The invention relates to a hydrogenation catalyst support, comprising a solid acid component and an amorphous heat-resistant oxide; the hydrogenation catalyst support has specific surface area of 220-430 m<2> / g, total pore volume of 0.35-0.70 ml / g, infrared acid quantity of 0.50-1.0 mmol / g, the ratio of acid B to acid L being 0.2-1.0 and radial crushing strength of greater than 130 N / cm; based onthe total weight of the support, the solid acid component accounts for 10-80%, and the amorphous heat-resistant oxide accounts for 20-90%, wherein the solid acid component is MCM-22 molecular sieve having silicon-aluminum ratio of 10-50, specific surface area of 400-700 m<2> / g, and pore volume of 0.35-0.75 ml / g. In addition, a preparation method of the hydrogenation catalyst support is also disclosed; the hydrogenation catalyst support is widely applicable to hydrogenation cracking, hydrogenation upgrading, hydroisomerization and other processes.

Description

technical field [0001] The invention belongs to a hydrogenation catalyst carrier and a preparation method thereof, in particular to a catalyst carrier with MCM-22 molecular sieve as an acidic component, which is used in processes such as hydrocracking, hydrogenation upgrading and hydrogenation isomerization and its preparation method. Background technique [0002] Hydrocracking technology, as an important processing method for lightening heavy oil, upgrading inferior oil products and refining and chemical integration, has the advantages of flexible production plan, strong adaptability of raw materials, high selectivity of target products, good quality and high added value of tail oil . Hydrocracking catalyst is the core of hydrocracking technology, so the research, development and application of hydrocracking catalyst is also the main content of hydrocracking technology progress. The hydrocracking catalyst is a typical dual-function catalyst. The catalyst support material ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/80C10G45/12C10G45/64
CPCB01J29/80B01J2229/36B01J2229/37B01J2229/38B01J2229/40B01J2229/42C10G45/12C10G45/64
Inventor 袁晓亮王燕王延飞张志华余颖龙张雅琳翟绪丽付凯妹谢斌张占全庄梦琪王嘉祎王晶晶
Owner PETROCHINA CO LTD
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