Coal-fired power station system integrating calcium oxide cycle decarbonization system in secondary carbonization process
A technology for secondary carbonization and coal-fired power plants, applied in chemical instruments and methods, separation methods, machines/engines, etc., can solve problems such as energy waste, achieve the effects of reducing energy consumption, improving overall efficiency, and improving cycle activity
Active Publication Date: 2019-02-05
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology
However, in the calcium oxide cycle decarbonization system with secondary carbonization process, both the primary carbonizer and the secondary carbonizer will generate a large amount of high-quality heat. If this part of energy is not properly utilized, it will cause great energy waste.
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[0022] The present invention provides a coal-fired power station system integrated with a calcium oxide cycle decarbonization system in the secondary carbonization process and its application. The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0023] Such as figure 1 The coal-fired power plant system integrated with the calcium oxide cycle decarbonization system in the secondary carbonization process shown, wherein, the primary carbonizer 1, the first separator 2, the secondary carbonizer 3, the second separator 4, and the third separator 5 , the fourth heat exchanger 6, the calciner 7, the fourth separator 8, the fifth separator 9, the third heat exchanger 10, and the primary carbonizer 1 are connected in sequence; the fourth separator 8 is connected with the secondary carbonizer 3 ; The third heat exchanger 10 is connected to the calciner 7; the fifth separator 9 is connected to the fifth heat excha...
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The invention belongs to the technical field of calcium oxide circular decarbonizing, and particularly relates to a coal-fired power plant system integrated with a calcium oxide circular decarbonizing system with a secondary carbonizing process. Integration of a calcium oxide circular decarbonizing system with a secondary carbonizing process, a traditional coal-fired power plant and a waste heat boiler system is carried out in the aspect of improvement of heat efficiency of a whole system. An integrating unit comprises a 600MW supercritical coal-fired power plant system, a calcium oxide circular decarbonizing system with a secondary carbonizing process, a three-pressure reheating waste heat boiler system and a CO2 compression system. Circulation quantity of a calcium absorbent and energy consumption of a combustor can be greatly reduced, meanwhile, the problem of large energy consumption of a secondary carbonizer is solved, and compared with the traditional integrating mode, the coal-fired power plant system integrated with the calcium oxide circular decarbonizing system with the secondary carbonizing process has remarkable thermodynamics advantages and economic performance advantages.
Description
technical field [0001] The invention belongs to the technical field of calcium oxide cyclic decarbonization, and in particular relates to a coal-fired power station system integrating a calcium oxide cyclic decarbonization system in a secondary carbonization process. Background technique [0002] Excessive greenhouse gas emissions have caused a series of impacts on natural ecosystems and human living environments. With the development of human society, global greenhouse gas emissions are still increasing year by year, of which CO 2 Accounting for 60% of total greenhouse gas emissions. Traditional fossil fuel power plants are one of the most concentrated sources of carbon dioxide emissions in industrial production, so the carbon emission reduction of fossil fuel power plants has become a research hotspot in recent years. [0003] The calcium oxide cyclic decarburization system with secondary carbonization process is improved on the basis of the traditional double fluidized ...
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IPC IPC(8): B01D53/81B01D53/62F01K11/02
CPCB01D53/62B01D53/81B01D2251/404F01K11/02
Inventor 段立强冯涛谢坤
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)