Zero-discharge hydrogen-electric co-production system

A zero-emission, sub-system technology, applied in the energy field, can solve problems such as cycle efficiency loss, material allowable stress difficult to meet requirements, high temperature, etc., and achieve the effects of small R&D investment, high energy utilization efficiency, and good matching

Pending Publication Date: 2018-08-24
SHANGHAI POWER EQUIP RES INST
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Problems solved by technology

[0004] The supercritical carbon dioxide cycle turbine with direct combustion heating has high inlet temperature and pressure, but the turbine expansion ratio is small. Under the optimal expansion ratio, the exhaust gas temperature of the turbine can reach above 900°C. If it directly enters the regenerator, it will

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  • Zero-discharge hydrogen-electric co-production system

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Embodiment Construction

[0025] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0026] figure 1 A schematic diagram of a zero-emission hydrogen cogeneration system provided for this example, including a carbon dioxide main compressor 1, a regenerator 2, a burner 3, a turbine 4, a generator 5, a reforming reactor 6, and a condenser 7. Carbon dioxide water separator 8, cooler 9, carbon dioxide pre-compressor 10, carbon dioxide collector 11, natural gas source 12, natural gas primary preheater 13, natural ga...

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Abstract

The invention discloses a zero-discharge hydrogen-electric co-production system which comprises a supercritical carbon dioxide circulation subsystem, a natural gas steam reforming hydrogen productionsubsystem and an air oxygen production subsystem. Direct-fired heating supercritical carbon dioxide circulation power generation is performed, turbine exhaust high-temperature segment heat is used fora natural gas steam reforming hydrogen production process, hydrogen production tail gas and supplementary natural gas mixed gas serves as a combustor fuel, an air device provides pure oxygen, all carbon dioxide generated by combustion is captured, all water is recycled, and NOx gas discharge is omitted. Fuel consumption can be reduced by externally provided low-grade heat energy. The hydrogen-electric yield grade matching property of the system is good, the prior art is integrated, only part of equipment needs to be changed, and research input is less.

Description

technical field [0001] The invention relates to a zero-emission hydrogen-electricity cogeneration system, belonging to the technical field of energy. Background technique [0002] Hydrogen and electricity are zero-carbon and pollution-free energy carriers, both of which play an extremely important role in the energy field. With the progress of society, hydrogen energy has been paid more and more attention, and is considered to be the main body of future energy. The existing hydrogen production plant and power plant are mutually independent systems. The former mainly obtains hydrogen from hydrogen-containing substances through chemical reaction, electrolysis, thermal decomposition and other principles, and the latter mainly uses the principle of thermodynamic cycle to burn fuel and nuclear fission , solar radiation, etc. to convert heat into electricity. In recent years, research on hydrogen-power cogeneration systems has received widespread attention, including cogeneratio...

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Application Information

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IPC IPC(8): C01B3/34C01B13/02C01B32/50F01D15/10F01K7/32
CPCC01B3/34C01B13/0229C01B32/50C01B2210/0028C01B2210/0046F01D15/10F01K7/32Y02P20/129Y02P20/54
Inventor 郑开云黄志强
Owner SHANGHAI POWER EQUIP RES INST
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