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Composition for preparing methane by catalytic hydrogenation of carbon

A technology of catalytic hydrogenation and composition, applied in catalyst activation/preparation, chemical/physical process, physical/chemical process catalyst, etc., to achieve the effect of reducing cost and good catalytic effect

Active Publication Date: 2019-01-18
SHIHEZI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This catalyst cannot fundamentally solve the shortcomings of traditional alkali metal catalysts

Method used

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  • Composition for preparing methane by catalytic hydrogenation of carbon

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh 0.0617g of Co(NO 3 ) 2 ·6H 2 0.0.0181g of Fe(NO 3 ) 3 9H 2 O, 0.0884g of Ca(NO 3 ) 2 4H 2 O is evenly mixed and placed in a small beaker, and 0.7ml of deionized water is added to ultrasonically uniformly prepare a mixed solution. Add 1 g of coal char (20-60 mesh) to the above mixed solution, ultrasonically impregnate it for 2 hours, put it in a blast drying oven at 105°C for 24 hours, and put it in a desiccator for storage after cooling to room temperature.

[0028] Put the above-treated coal char into a fixed-bed reactor, and carry out gasification reaction under the conditions of reaction temperature 750°C, hydrogen pressure 2MPa, and hydrogen flow rate 50ml / min to obtain product methane.

Embodiment 2

[0030] Weigh 0.0496g of Co(NO 3 ) 2 ·6H 2 O, 0.0362g of Fe(NO 3 ) 3 9H 2 O, 0.0884g of Ca(NO 3 ) 2 4H 2 O mixed and placed in a small beaker, adding 0.7ml of deionized water and ultrasonically uniformly prepared a mixed solution. Add 1 g of coal char (20-60 mesh) to the above mixed solution, ultrasonically impregnate it for 2 hours, put it in a blast drying oven at 105°C for 24 hours, and put it in a desiccator for storage after cooling to room temperature.

[0031] Put the above-treated coal char into a fixed-bed reactor, and carry out gasification reaction under the conditions of reaction temperature 750°C, hydrogen pressure 2MPa, and hydrogen flow rate 50ml / min to obtain product methane.

Embodiment 3

[0033] Weigh 0.0372g of Co(NO 3 ) 2 ·6H 2 O, 0.0543g of Fe(NO 3 ) 3 9H 2 O, 0.0884 Ca(NO 3 ) 2 4H 2 O mixed and placed in a small beaker, adding 0.7ml of deionized water and ultrasonically uniformly prepared a mixed solution. Add 1 g of coal char (20-60 mesh) to the above mixed solution, ultrasonically impregnate it for 2 hours, put it in a blast drying oven at 105°C for 24 hours, and put it in a desiccator for storage after cooling to room temperature.

[0034] Put the above-treated coal char into a fixed-bed reactor, and carry out gasification reaction under the conditions of reaction temperature 750°C, hydrogen pressure 2MPa, and hydrogen flow rate 50ml / min to obtain product methane.

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PUM

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Abstract

The invention discloses a composition for preparing methane by catalytic hydrogenation of carbon. The composition contains the components of a cobalt salt, an iron salt and a calcium salt, wherein themass ratio of Co: Fe: Ca is 0.25-1.5:0.25-1.5:1.5. Compared with an existing catalyst for preparing methane by catalytic hydrogenation of coal, the three-component combination of Co-Fe-Ca is adoptedby the composition, the composition not only has excellent catalytic effect but also has the advantages of good stability, difficulty in inactivation and low cost and is suitable for industrial use.

Description

technical field [0001] The invention belongs to the field of catalytic hydrogenation, in particular to a composition for catalytic hydrogenation of carbon to methane, and the application of the composition in catalytic hydrogenation of solid carbonaceous materials to prepare methane. Background technique [0002] my country's overall energy characteristics are "more coal, less oil, less gas". With the development of my country's economy and the strengthening of environmental protection, the demand for natural gas is rising rapidly. It is suitable to convert the abundant coal into natural gas through catalytic gasification. The choice of my country's national conditions and development strategy is also an inevitable trend for efficient integration of resources and improvement of coal resource utilization. [0003] According to the different chemical reaction steps, coal-to-natural gas technology can be divided into direct coal-to-natural gas technology and indirect coal-to-nat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/78B01J37/02B01J37/18C10L3/08
CPCB01J23/78B01J37/0201B01J37/18C10L3/08
Inventor 张建树张峰孙浩
Owner SHIHEZI UNIVERSITY
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