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Nickel-based catalyst carrier and its preparation method and application and nickel-based catalyst and its preparation method and application

A nickel-based catalyst, catalyst technology, applied in catalyst carrier, catalyst activation/preparation, chemical instruments and methods, etc., can solve the problems of uneven dispersion of nickel species, expensive preparation of raw materials, complicated preparation process, etc., and achieve good activity and efficiency. Effects of stability, high carbon monoxide selectivity, and simple steps

Active Publication Date: 2018-06-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of the existing nickel-based catalyst preparation process complex, expensive preparation of raw materials, uneven dispersion of nickel species, to provide an easy-to-operate and low-cost preparation method of nickel-based catalyst and the nickel-based catalyst Application in Autothermal Reforming of Methane to Syngas

Method used

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  • Nickel-based catalyst carrier and its preparation method and application and nickel-based catalyst and its preparation method and application
  • Nickel-based catalyst carrier and its preparation method and application and nickel-based catalyst and its preparation method and application
  • Nickel-based catalyst carrier and its preparation method and application and nickel-based catalyst and its preparation method and application

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preparation example Construction

[0025] The invention provides a method for preparing a nickel-based catalyst carrier, the method comprising:

[0026] (1) The aluminum salt aqueous solution is contacted with a precipitant under alkaline conditions, aged, and separated to obtain an aluminum hydroxide hydrogel, and then the aluminum hydroxide hydrogel is sequentially washed with water and an alcohol solvent to obtain aluminum hydroxide alcohol gel;

[0027] (2) Under ultrasonic conditions, the aluminum hydroxide alcohol gel is contacted with the magnesium salt alcohol solution, then the solvent is removed, dried and roasted to obtain Mg-Al 2 o 3 carrier.

[0028] In the present invention, there is no special requirement for the aging conditions, and the specific implementation conditions can be determined according to the conventional drying conditions in this field. For example, the aging conditions generally include that the aging temperature can be 20-30°C, and the aging time can be 20-30°C. 2-16h.

[00...

Embodiment 1-1

[0061] 75.0g Al(NO 3 ) 3 9H 2 O was prepared as a 1000ml aqueous solution. Add 800ml of ammonia water with a concentration of 0.3mol / L in the three-necked flask; under the condition of continuous stirring, add the above-mentioned configured Al(NO 3 ) 3 aqueous solution. During the dropwise addition, ammonia water with a concentration of 0.3 mol / L was continuously added to the three-necked flask to maintain the pH of the system=11. After the entire dropping process was completed, the stirring was continued for 2 hours, and then left to stand at room temperature for aging for 10 hours, and the solid product obtained by separating it was aluminum hydroxide hydrogel. Add 2000ml of distilled water to the obtained aluminum hydroxide hydrogel for cleaning, fully beat and stir, then suction filter, and repeat cleaning 6 times according to the cleaning method. Then wash the aluminum hydroxide hydrogel with 500 ml of absolute ethanol, stir well after 2 hours, filter with suction, ...

Embodiment 1-2

[0065] 51.3g Al 2 (SO 4 ) 3 Prepare 1000ml of aqueous solution. Add 600ml of ammonia water with a concentration of 0.5mol / L into the three-necked flask; under the condition of continuous stirring, add the above-mentioned configured Al 2 (SO 4 ) 3 aqueous solution. During the dropwise addition, ammonia water with a concentration of 0.5 mol / L was continuously added to the three-neck flask to maintain the pH of the system=12. After the whole dropping process was completed, the stirring was continued for 1 hour, and then left to age at room temperature for 2 hours, and the solid product obtained by separating it was aluminum hydroxide hydrogel. Add 2000ml of distilled water to the obtained aluminum hydroxide hydrogel for cleaning, fully beat and stir, then suction filter, and repeat cleaning 6 times according to the cleaning method. Then clean the aluminum hydroxide hydrogel with 500 ml of absolute ethanol, stir well after 2 hours, filter with suction, and wash 3 times acco...

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Abstract

The invention discloses a preparation method of a nickel-based catalyst carrier, a nickel-based catalyst carrier and its application in methane autothermal reforming synthesis gas; and a nickel-based catalyst and a preparation method of a nickel-based catalyst , and the application of the nickel-based catalyst in producing synthesis gas by autothermal reforming of methane; and a method for producing synthesis gas by autothermal reforming of methane. Wherein, the preparation method of the nickel-based catalyst carrier includes: (1) contacting the aluminum salt solution with a precipitating agent under alkaline conditions, aging, and separating to obtain aluminum hydroxide hydrogel, and then washing the aluminum hydroxide hydrogel sequentially with water and alcohol solvents respectively. the aluminum hydroxide hydrogel to obtain the aluminum hydroxide alcohol gel; (2) under ultrasonic conditions, the aluminum hydroxide alcohol gel is contacted with the magnesium salt alcohol solution, then the solvent is removed, dried and roasted, A Mg-Al2O3 carrier is obtained. The method for preparing the nickel-based catalyst of the invention can reduce the preparation cost, has simple operation, easy control of conditions and good product repeatability.

Description

technical field [0001] The invention belongs to the field of catalyst preparation, and in particular relates to a preparation method of a nickel-based catalyst carrier, a nickel-based catalyst carrier and its application in the production of synthesis gas from methane autothermal reforming; and a nickel-based catalyst and a nickel-based catalyst carrier The preparation method of the nickel-based catalyst, and the application of the nickel-based catalyst in the autothermal reforming of methane to synthesis gas; and a method for the synthesis gas of methane autothermal reforming. Background technique [0002] Methane reforming to synthesis gas is the main route of methane chemical utilization, and is widely used in the production process of synthetic ammonia, methanol and hydrogen. Among them, methane steam reforming technology is currently the most widely used reforming technology in industry, but the reaction is a strong endothermic reaction, and the reaction conditions requ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J32/00B01J37/34B01J23/755B01J35/10C01B3/40
CPCY02P20/52
Inventor 刘红梅张明森徐向亚姜健准冯静
Owner CHINA PETROLEUM & CHEM CORP
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