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Catalytic coal gasification catalyst dispersion method

A coal catalytic gasification and catalyst technology, which is applied in the chemical industry, can solve the problems of accelerating the process of sample preparation, and the catalyst components cannot be effectively dispersed and preparation time-consuming. Effect

Inactive Publication Date: 2014-12-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] According to the shortcomings of the existing coal catalytic gasification catalyst preparation process that the catalyst components cannot be effectively dispersed on the coal-based materials and the preparation is time-consuming, it provides a simple and fast method for distributing the catalyst components on the coal-based materials by using ultrasonic technology. On the one hand, the process of sample preparation is greatly accelerated, and the problem that the conventional mechanical method and impregnation method cannot uniformly mix the catalyst and the coal-based material effectively is avoided

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0019] Example 1 : CS-K 2 CO 3 Catalytic Performance of Catalyst for Catalytic Gasification of Zhundong Coal

[0020] Weigh 0.177 g K 2 CO 3 , transferred to the beaker, then measure 20 ml of distilled water with a measuring cylinder, and drop the measured distilled water into the above beaker, stir it with a glass rod to fully dissolve it, then weigh 0.5 g Zhundong coal, and then It is added to a beaker, and then the beaker is placed in an ultrasonic generator with a fixed frequency of 50 kHz, the power is 60 W, and the action time is 50 min. Finally, the beaker is transferred to an oven for drying treatment, and crushed after tableting Sieve to 40 mesh -80 mesh, the catalyst is marked as CS-K 2 CO 3 .

[0021] Coal catalytic gasification reaction conditions: distilled water flow rate 1.0 ml / min, reaction temperature 973 K, reaction system pressure 3.4 MPa. The change curve of carbon conversion rate on the catalyst with time and CH 4 See attached table 1 for the cumu...

Embodiment 2

[0022] Example 2 :K 2 CO 3 Catalytic Performance of Catalyst for Catalytic Gasification of Zhundong Coal

[0023] Weigh 0.177 g K 2 CO 3 , transferred to the beaker, then measure 20 ml of distilled water with a measuring cylinder, and drop the measured distilled water into the above beaker, stir it with a glass rod to fully dissolve it, then weigh 0.5 g Zhundong coal, and then It is added into a beaker, and then placed on a magnetic stirrer for stirring for 6 h. Finally, the beaker is transferred to an oven for drying treatment. After tableting, it is crushed and sieved to 40 mesh-80 mesh. The catalyst is marked as K 2 CO 3 .

[0024] Coal catalytic gasification reaction conditions: distilled water flow rate 1.0 ml / min, reaction temperature 973 K, reaction system pressure 3.4 MPa. The change curve of carbon conversion rate on the catalyst with time and CH 4 The accumulated precipitation amounts are shown in Table 1, respectively.

Embodiment 3

[0025] Example 3 : CS-Ca(OH) 2 Catalytic Performance of Catalyst for Catalytic Gasification of Zhundong Coal

[0026] Weigh 0.185 g Ca(OH) 2 , transferred to a beaker, then measure 40 ml of distilled water with a measuring cylinder, and add the measured distilled water dropwise to the above beaker, stir for a period of time with a glass rod, weigh 0.5 g of Zhundong coal, and add it Then place the beaker in an ultrasonic generator with a fixed frequency of 50 kHz, the power is 80 W, and the action time is 40 min. Finally, the beaker is transferred to an oven for drying treatment, crushed and sieved after tableting To 40 mesh -80 mesh, the catalyst is marked as CS-Ca(OH) 2 .

[0027] Coal catalytic gasification reaction conditions: distilled water flow rate 1.0 ml / min, reaction temperature 973 K, reaction system pressure 3.4 MPa. The change curve of carbon conversion rate on the catalyst with time and CH 4 The accumulated precipitation amounts are shown in Table 2, respec...

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Abstract

The invention discloses a preparation process for rapid dispersion of a catalyst on a coal based material, and provides a simple and efficient method for the preparation of a catalytic coal gasification catalyst. According to the method, rapid distribution of the catalytic coal gasification catalyst on the coal based material by ultrasonic assisted technology. The preparation process is applied in a catalytic coal gasification fixed bed reactor, and compared with a routine method for production of the catalytic coal gasification catalyst, the preparation process can not only shorten the time of preparing the catalyst, but also can greatly improve the gasification efficiency of the coal based material and increase the methane production, and can improve the clean and efficient use of the coal based material.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, in particular, it proposes a simple and efficient method for dispersing a coal catalytic gasification catalyst. Background technique [0002] Coal is a kind of organic organisms gradually formed by the accumulation of plant debris in a suitable geological environment to a certain thickness and covered by water or sediment. rock. The original materials of coal formation are complex and diverse, the external conditions of coal formation and the historical age of coal formation are different, resulting in coal having some common characteristics, compared with general minerals, in mineralogy and petrography, basic physics And chemical characteristics, etc. have more species diversity and structural complexity. [0003] China's energy structure is characterized by more coal and less gas. Coal plays an extremely important role in the development of my country's national economy. However, wi...

Claims

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Application Information

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IPC IPC(8): C10J3/46C10L3/06B01J27/232B01J23/02B01J27/25
CPCY02P20/52
Inventor 刘俊李海涛吕锋侯红美
Owner CHINA PETROLEUM & CHEM CORP
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