Method for preparing coal gas from molded coal
A technology of briquette and coal gas, which is applied in the manufacture of combustible gas and petroleum industry, etc. It can solve problems such as difficult to meet the requirements of enterprises, low calorific value of gas, and increased resistance of the material layer in the furnace, so as to alleviate the tightness of supply and broaden the scope of production. Application prospect, effect of improving heat utilization rate
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Embodiment 1
[0016] Embodiment 1 prepares coal gas with the method for coal gas preparation of the present invention
[0017] When coal briquettes are gasified, the thickness of each material layer is: ash layer 300mm, gasification layer 250mm, fuel preparation layer 500mm; the gasification agent used is obtained by mixing water vapor and air with an oxygen volume content of 26%, and the saturation temperature of the gasification agent is It is 65°C; the frequency of brazing measurement is once every 2 hours, and the temperature of gasification layer is 1000°C.
[0018] After measurement, the calorific value of the obtained gas is 6300Kj / Nm 3 .
Embodiment 2
[0019] Embodiment 2 prepares coal gas with the method for coal gas preparation of the present invention
[0020] When coal briquettes are gasified, the thickness of each material layer is: ash layer 400mm, gasification layer 280mm, fuel preparation layer 650mm; the gasification agent used is obtained by mixing water vapor and air with an oxygen volume content of 27%, and the saturation temperature of the gasification agent is It is 66°C; the frequency of brazing measurement is once every 2 hours, and the temperature of gasification layer is 1100°C.
[0021] After measurement, the calorific value of the obtained gas is 6500Kj / Nm 3 .
Embodiment 3
[0022] Embodiment 3 prepares coal gas with the method for coal gas preparation of the present invention
[0023] When the briquette is gasified, the thickness of each material layer is: ash layer 500mm, gasification layer 300mm, fuel preparation layer 800mm; the gasification agent used is obtained by mixing water vapor and air with an oxygen volume content of 28%, and the saturation temperature of the gasification agent is It is 67°C; the frequency of brazing measurement is once every 2 hours, and the gasification layer temperature is 1050-1150°C.
[0024] After measurement, the calorific value of the obtained gas reaches 6700Kj / Nm 3 .
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Abstract
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