Fluidized bed reaction device and reaction method for producing methane-rich synthesis gas by catalytic coal gasification
A methane synthesis gas and coal catalytic gasification technology, which is applied to the gasification of granular/powdered fuels, the manufacture of combustible gases, and the production of bulk chemicals. It can solve the problems of low carbon conversion rate, complex structure, and low methane yield.
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Embodiment 1
[0036]In this embodiment, the lower space of the gasification apparatus is 0.1m, the height 5m, the upper space inside diameter is 0.2m, the height is 6m, the set two-layer gas distributor, the air hole is uniformly arranged along the circumference, provided with a 10-lap gas hole, open hole The rate is 2%, and the angle of the inclined surface of the gas distributor is 30 °, and a auxiliary feed port is set for replenishing the catalyst. Inner Mongolish coal was used to obtain 1 mm or less, and the catalyst can be used with potassium carbonate, and 10% of the potassium carbonate catalysts and the pulverized coal were mixed. After drying 24h, it obtained a mixture of less than 5% water content, supplemented The potassium carbonate catalyst is 10% of the lower space catalyst. The mixture of pulverized coal and catalyst was added to the gasifier, high temperature water vapor and preheating oxygen passed from the level gas distributor into the gasifier, and carried out under pressure o...
Embodiment 2
[0038]In this embodiment, the lower space of the gasification device is 0.1m, the height 5m, the upper space inner diameter is 0.3m, the height is 6m, the set two-layer gas distributor, the pores are uniformly arranged along the circumference, and 10, opening, opening The rate is 2%, and the angle of the inclined surface of the gas distributor is 30 °, and a auxiliary feed port is set for replenishing the catalyst. Inner Mongolish coal was used to obtain 1 mm or less, and the catalyst can be used with potassium carbonate, and 10% of the potassium carbonate catalysts and the pulverized coal were mixed. After drying 24h, it obtained a mixture of less than 5% water content, supplemented The potassium carbonate catalyst is 10% of the lower space catalyst. The mixture of pulverized coal and catalyst was added to the gasifier, high temperature water vapor and preheating oxygen passed from the level gas distributor into the gasifier, and carried out under pressure of 3.5 MPa, temperature 8...
Embodiment 3
[0040]In this embodiment, the lower space of the gasification device is 0.1m, the height 5m, the upper space inner diameter of 0.3m, the height is 6m, the set two-layer gas distributor, and the pores are evenly arranged along the circumference, and 20 lap gas holes, open holes The rate is 2%, and the angle of the inclined surface of the gas distributor is 30 °, and a auxiliary feed port is set for replenishing the catalyst. Inner Mongolish coal was used to obtain 1 mm or less, and the catalyst can be used with potassium carbonate, and 10% of the potassium carbonate catalysts and the pulverized coal were mixed. After drying 24h, it obtained a mixture of less than 5% water content, supplemented The potassium carbonate catalyst is 10% of the lower space catalyst. The mixture of pulverized coal and catalyst was added to the gasifier, high temperature water vapor and preheating oxygen passed from the level gas distributor into the gasifier, and carried out under pressure of 3.5 MPa, temp...
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