Hydrogen-rich gas production equipment as well as hydrogen-rich gas production process and solar condensation heat collecting coal gasifier

Abstract

The invention discloses hydrogen-rich gas production equipment as well as a hydrogen-rich gas production process and a solar condensation heat collecting coal gasifier. The hydrogen-rich gas production equipment comprises the solar condensation heat collecting coal gasifier, multistage hydrogen-rich gas production devices, a washing tower and a desulfurizer, wherein each hydrogen-rich gas production device comprises a cyclone separator and a spiral tube exchanger; the spiral tube exchanger is provided with a heat exchange cavity, a spiral tube assembly, a water gas inlet, a water gas outlet, a mixture outlet, a gas outlet and an inlet of a water pyrolysis product generated by introducing water or water vapor under the action of a water pyrolysis catalyst, the heat exchange cavity is positioned on the periphery of the spiral tube assembly, and the water gas inlet is connected with the spiral tube assembly and then communicated with the water gas outlet; the inlet, the mixture outlet and the gas outlet are all communicated with the heat exchange cavity; the output end of the cyclone separator is communicated with the water gas inlet of the spiral tube exchanger in the same stage of hydrogen-rich gas production device, and the water gas outlet is connected to the input end of the next stage of cyclone separator. By adopting the hydrogen-rich gas production equipment, the hydrogen-rich gas production process and the solar condensation heat collecting coal gasifier disclosed by the invention, clean gas with high hydrogen content can be produced, the heat conversion efficiency can be improved, and the pollution can be reduced.

Description

technical field [0001] The invention relates to hydrogen-rich gas production equipment, a production process thereof, and a solar concentrating heat-collecting coal gasifier. Background technique [0002] At present, our country is rich in coal, poor in gas (shale gas and combustible ice cannot be exploited on a large scale in the short term), and lacks oil. The ratio of coal to the entire domestic energy consumption is higher than 65%, and it is impossible to fundamentally change it in the short term. The structure of thermal power generation that directly burns coal is as follows: combustion→water heating→steam→steam turbine→generator. This system mainly has low energy conversion efficiency, generally around 35%, and serious pollution. The current coal gasification process In the process, a lot of heat energy is consumed, such as the formula: C+H 2 O→CO+H 2 Endothermic, C+2H 2 O→CO 2 +2H 2 Heat absorption, in the current coal gasification, the formula is fully reacted...

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Problems solved by technology

[0002] At present, our country is rich in coal, poor in gas (shale gas and combustible ice cannot be exploited on a large scale in the short term), and lacks oil. The ratio of coal to the entire domestic energy consumption is higher than 65%, and it is impossible to fundamentally change it in the short term. The structure of thermal power generation that directly burns coal is as follows: combustion→water heating→steam→steam turbine→generator. This system mainly has low energy conversion efficiency, generally around 35%, and serious pollution. The current coal gasification process In the process, a lot of heat energy is consumed, such as the formula: C+H 2 O→CO+H 2 Endothermic, C+2H 2 O→CO 2 +2H 2 Heat absorption, in the current coal gasification, the formula is fully reacted due to the heat obtained by burning coal. In order to provide heat, a large amount of coal burned causes pollution on the one hand, and reduces the gas production rate of fossil fuel coal on the other hand

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