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Inside and outside burning coal integrative combined cycle generation system and method

A combined cycle power generation and coal-fired technology, applied in steam generation, steam generation devices, machines/engines, etc., can solve the major environmental problems without considering the control of CO, limited efficiency improvement, low power generation efficiency, etc., and achieve superior environmental protection. , The effect of saving compression power consumption and good economy

Inactive Publication Date: 2004-08-18
中科思道(南京)储能技术有限公司
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Problems solved by technology

[0022] The purpose of the present invention is to overcome the steam Rankine cycle that the vast majority of current coal-fired power generation devices use, the power generation efficiency is not high, the problem of environmental pollution is more serious, and the clean coal power generation technology (such as IGCC power generation technology and PFBCC power generation technology under development) Technology) Although the performance has been improved, there are problems such as high investment cost, high technical difficulty, limited efficiency improvement, and no consideration of controlling CO 2 major environmental issues of emissions; and provide an integrated internal and external coal-fired combined cycle power generation system

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  • Inside and outside burning coal integrative combined cycle generation system and method
  • Inside and outside burning coal integrative combined cycle generation system and method
  • Inside and outside burning coal integrative combined cycle generation system and method

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[0053] specific implementation

[0054] The T-s diagram of the new cycle of the present invention is shown in figure 1 (The point in the figure is the same as image 3 corresponding to the logistics serial number). The endothermic process is divided into two stages: 24-38 is heating by external combustion (including the heating of water vapor by semi-coke combustion and the heating of water vapor by high-temperature gas), and 18-17 is heating by internal combustion; the work process is divided into three Section: 38-23 are high pressure steam turbines, 17-20 are high temperature gas turbines (steam and CO 2 Mixed working fluid), 21-26 are low temperature gas turbines (steam and CO 2 Mixed working fluid); the exothermic process is 26-27; the temperature rise of the feed water pressurization process is low, which are 27 points and 36 points on the figure; The heat source is low temperature gas turbine exhaust), feed water preheating and medium pressure steam recuperation hea...

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Abstract

The invention relates to an external and internal fire coal integrated combination circulation power generating system and process thereof, the power generating system comprises gasification sub-system, power circulation subsystem and carbon dioxide reclamation subsystem. The process according to the invention includes heating up in external-burning mode in the low-temperature stage of the endothermic process in thermodynamic cycle, obtaining the energy through portion coal gasification, and using internal-burning mode heating up in high temperature stage, obtaining the coal gas energy through portion coal gasification. The advantages of the invention are high heat efficiency, environmentally friendliness and good economy property.

Description

technical field [0001] The invention relates to a novel power generation system and method which organically combines internal and external coal combustion technology based on partial coal gasification and integrated combined cycle, and can effectively separate carbon dioxide. Background technique [0002] At present, the systems and technologies related to the present invention mainly include: coal-fired combined cycle power generation systems, CO 2 Separation technology and high initial temperature steam cycle, etc., the development status and characteristics of their respective technologies are as follows. [0003] 1. Coal-fired combined cycle power generation system (CFCC) [0004] At present, coal-fired combined cycle power generation systems mainly include: integrated coal gasification combined cycle power generation system (IGCC), pressurized fluidized bed coal-fired combined cycle power generation system (PFBCC) and coal partial gasification fluidized bed combustion...

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Application Information

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IPC IPC(8): F01K25/00F02C1/10F22B33/18F22G1/02
Inventor 邓世敏金红光林汝谋蔡睿贤
Owner 中科思道(南京)储能技术有限公司
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