Method for coupling coal gasification process and steam turbine power generation process
A technology of coal gasification and steam, which is used in the gasification of granular/powdered fuels, the petroleum industry, the manufacture of combustible gases, etc.
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Embodiment 1
[0054] refer to Figure 4 , taking the catalytic gasification of bituminous coal and supercritical water as an example. The coal is pulverized and ground into pulverized coal with a particle size of less than 150 microns, and the catalyst Na 2 CO 3 (The dosage is 10% of the mass of pulverized coal) and water to prepare a coal-water slurry with a dry concentration of pulverized coal of 40%. The process of preparing coal-water slurry is not Figure 4 drawn in. The coal-water slurry is pressurized, preheated to 23MPa, and enters the gasifier at 550°C, and oxygen is introduced into the gasifier at the same time. A portion of the coal-water slurry reacts with the added oxygen in the gasifier to raise the temperature to 650°C. In the supercritical state, coal reacts with water under the action of a catalyst to produce methane-rich syngas. The main components of syngas are methane, carbon monoxide, carbon dioxide, hydrogen, etc. Outgoing gasifier products include syngas, super...
Embodiment 2
[0056] refer to Figure 5 , taking the catalytic gasification of bituminous coal and supercritical water as an example. The coal is pulverized and ground into pulverized coal with a particle size of less than 150 microns, and the catalyst Na 2 CO 3 (The dosage is 10% of the mass of pulverized coal) and water to prepare a coal-water slurry with a dry concentration of pulverized coal of 40%. The process of preparing coal-water slurry is not Figure 5 drawn in. The coal-water slurry is pressurized, preheated to 23MPa, and enters the gasifier at 550°C, and oxygen is introduced into the gasifier at the same time. A portion of the coal-water slurry reacts with the added oxygen in the gasifier to raise the temperature to 650°C. In the supercritical state, coal reacts with water under the action of a catalyst to produce methane-rich syngas. The main components of syngas are methane, carbon monoxide, carbon dioxide, hydrogen, etc. Outgoing gasifier products include syngas, super...
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Abstract
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