Catalyst carrier material, catalyst carrier and preparation method thereof

A catalyst carrier and carrier material technology, applied in catalyst carriers, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problem of uneven dispersion of alumina and activated carbon, unstable properties of amorphous alumina, and sludge impurities. High-level problems, to achieve high reactivity and use stability, improve activity and use stability, and make full use of the effect

Active Publication Date: 2015-06-03
CHINA PETROLEUM & CHEM CORP +1
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AI-Extracted Technical Summary

Problems solved by technology

This method belongs to the process of physical mixing of alumina-containing species and activated carbon, and the dispersion of alumina and activated ...
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Abstract

The invention discloses a catalyst carrier material, a catalyst carrier and a preparation method thereof. The catalyst carrier material uses activated carbon as a core and alumina dried gum as a shell. The preparation method comprises the following steps: introducing activated carbon slurry into the process of gelling amorphous alumina; aging, molding, and drying to obtain the carrier material; molding or un-molding to prepare the carrier. According to the catalyst prepared from the catalyst carrier material or carrier, a reactant firstly contacts and reacts with the alumina serving as the shell layer, and is contacted with the activated carbon serving as the core layer to react, so that the advantages of alumina and activated carbon can be sufficiently utilized, the catalyst has relatively high reaction activity and using stability, and the service life of the catalyst can be prolonged.

Application Domain

Catalyst carriersMetal/metal-oxides/metal-hydroxide catalysts +1

Technology Topic

ChemistryActivated carbon +4

Image

  • Catalyst carrier material, catalyst carrier and preparation method thereof
  • Catalyst carrier material, catalyst carrier and preparation method thereof
  • Catalyst carrier material, catalyst carrier and preparation method thereof

Examples

  • Experimental program(7)
  • Comparison scheme(3)

Example Embodiment

[0049] Example 1
[0050] The solid aluminum chloride was added to distilled water while heating and stirring until dissolved, resulting in solution (a). The concentrated ammonia water is added with an appropriate amount of distilled water to be diluted to about 10wt% dilute ammonia water (b). The powdered coconut shell charcoal is added to the glucose aqueous solution and mixed evenly, the liquid-solid volume ratio is 3:1, and then water is added to make a slurry to obtain a slurry (c). After adding (a) to the gel-forming tank and stirring and heating to 60°C, open the valve of the container containing (b), and drop the system in the tank to pH=4.0 within 10 minutes. (c), continue to dropwise (b), and control the dropwise addition of the system in the tank to pH=8.0 within 30 minutes. Keep the temperature at 60°C, pH=8.0, age for 1 hour, filter the material in the tank, wash to no chloride ions, filter, and dry the filter cake at 110°C for 10 hours to obtain carrier material A-1, and then in nitrogen It was calcined at 550°C for 5 hours under the protection, crushed and sieved to obtain a powder carrier J-1. The amounts of reagents used for gel formation are listed in Table 1.
[0051] Take 100 grams of powdered carrier J-1, contact it with a colloidal solution containing nitric acid to form a paste, extrude it into strips, then dry it at 110 °C for 10 hours, and bake it at 550 °C for 5 hours under nitrogen protection to obtain the catalyst. Shaped carrier Z-1, whose properties are shown in Table 2.

Example Embodiment

[0052] Example 2
[0053] The solid aluminum sulfate was added to distilled water while heating and stirring until dissolved, resulting in solution (a). The concentrated ammonia water is added with an appropriate amount of distilled water to be diluted to about 10wt% dilute ammonia water (b). The powdered coconut shell charcoal is added to the glucose aqueous solution and mixed evenly, the liquid-solid volume ratio is 5:1, and then water is added to make a slurry to obtain the activated carbon slurry (c). Take a glue tank, add (a) to the tank and heat it to 60°C with stirring, open the valve of the container containing (b), and drop the system in the tank to pH=4.0 within 10 minutes, open (c) ) the valve of the container, continue to drip (b), control the system in the tank to drop to pH=8.0 within 30 minutes, and control the valve of the container of (c) to ensure that the dripping is completed at this time. Keep the temperature at 60°C, pH=8.0, age for 1 hour, filter the material in the tank, wash until there is no sulfate ion, filter, and dry the filter cake at 110°C for 10 hours to obtain carrier material A-2. Then calcined at 550° C. for 5 hours under nitrogen protection, crushed and sieved to obtain powder carrier J-2. The amounts of reagents used for gel formation are listed in Table 1.
[0054] Take 100 grams of carrier material A-2, contact it with a colloidal solution containing nitric acid to form a paste, extrude it into strips, and then dry it at 110 °C for 10 hours, and bake it at 550 °C for 5 hours under nitrogen protection to obtain catalyst molding. Carrier Z-2, whose properties are shown in Table 2. Then it was impregnated with an impregnation solution containing Ce-Cu, then dried at 110 °C for 10 hours, and calcined at 550 °C for 5 hours under nitrogen protection to obtain catalyst B, whose composition is shown in Table 3.

Example Embodiment

[0055] Example 3
[0056] The solid aluminum sulfate was added to distilled water while heating and stirring until dissolved, resulting in solution (a). The solid sodium metaaluminate is formulated into a concentration of 250g Al 2 O 3 /L sodium aluminate solution (b). The powdered coconut shell charcoal is added to the sucrose aqueous solution and mixed evenly, the liquid-solid volume ratio is 3:1, and then water is added to make a slurry to obtain a slurry (c). Take a glue tank, put it in 2L deionized water, stir and heat it to 60℃, then add the slurry (c), open the valve of the container with (a) and (b) at the same time, and control the pH of the system to be 8.0 for 45 minutes. After dripping (a), close the valve. Keep the temperature at 60°C, pH=8.0, age for 1 hour, filter the material in the tank, wash until there is no sulfate ion, filter, and dry the filter cake at 110°C for 10 hours to obtain carrier material A-3. Then calcined at 550° C. for 5 hours under nitrogen protection, crushed and sieved to obtain powder carrier J-3. The amounts of reagents used for gel formation are listed in Table 1.
[0057]Take 100 grams of carrier material A-3, contact it with a colloidal solution containing nitric acid to form a paste, extrude it into strips, and then dry it at 110 °C for 10 hours, and bake it at 550 °C for 5 hours under nitrogen protection to obtain catalyst molding. Carrier Z-3, whose properties are shown in Table 2.

PUM

no PUM

Description & Claims & Application Information

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