Normal pressure CO2 zero-emission SOFC/AT/ST hybrid power system integrated with purge gas OTM oxygen supply

A technology of compound power and integrated belt, which is applied in the direction of machines/engines, electrical components, gas turbine devices, etc., can solve the problems of polluting gas emissions and low efficiency, and achieve the effects of reduced energy consumption, high efficiency, and easy separation

Active Publication Date: 2015-02-25
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention does not recover CO 2 Based on the advanced SOFC / ST composite power system, an integrated solution is proposed: integrated oxygen ion transport membrane (OTM), high temperature air turbine (AT) and CO 2 The recovery unit consists of CO 2 The zero-emission system adopts a systematic approach to solve the problems of low efficiency and a large amount of pollutant gas emissions in traditional power generation systems, and realizes low-energy recovery of CO 2 , and keep the system efficient

Method used

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  • Normal pressure CO2 zero-emission SOFC/AT/ST hybrid power system integrated with purge gas OTM oxygen supply
  • Normal pressure CO2 zero-emission SOFC/AT/ST hybrid power system integrated with purge gas OTM oxygen supply
  • Normal pressure CO2 zero-emission SOFC/AT/ST hybrid power system integrated with purge gas OTM oxygen supply

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Embodiment Construction

[0022] The invention provides an atmospheric pressure CO integrated with purge gas OTM oxygen supply 2 The zero-emission SOFC / AT / ST composite power system, the present invention will be further described below through the description of the drawings and specific implementation methods.

[0023] The basic system structure diagram is as follows figure 1 As shown: after the air 1 is compressed by the first air compressor 1, it flows through the first heat exchanger 2 and the second heat exchanger 3 in sequence, and enters the cathode of the SOFC cell stack 4, and the fuel is compressed by the fuel compressor 9 and passes through the third heat exchanger. After the heat exchange, the heat exchanger 8 enters the pre-reformer 7 and mixes and reforms with the recycled part of the anode exhaust gas, and then enters the anode of the SOFC cell stack 4, and electrochemically reacts with the cathode air, and passes through the DC / AC converter 6 output power. Thereafter, the anode exhaus...

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Abstract

The present invention belongs to the technical field of normal pressure CO2 zero-emission solid oxide fuel cell (SOFC) hybrid power generation, and particularly relates to a normal pressure CO2 zero-emission SOFC / AT / ST hybrid power system integrated with purge gas OTM oxygen supply. An SOFC cell stack system, an OTM system, an air turbine AT, a waste heat boiler and a steam turbine system, and a CO2 recovery system are integrated by the present invention into an efficient and energy-saving CO2 zero-emission hybrid system. The system energy efficiency is high. Combustion products are CO2 and H2O, and CO2 is easy to separate and store. The power consumption is less. The system has a high efficiency as recovering CO2. The invention takes full advantage of the waste heat of SOFC high temperature exhaust, improves the efficiency of the system, and greatly reduces the energy consumption of CO2 separation and capture.

Description

technical field [0001] The present invention belongs to normal pressure CO 2 Zero-emission Solid Oxide Fuel Cell (SOFC) hybrid power generation technology field, especially relates to a normal-pressure CO with purge gas OTM oxygen supply 2 Zero-emission SOFC / AT / ST hybrid power system. Background technique [0002] Solid oxide fuel cells use electrochemical processes to generate electricity, and have high energy conversion efficiency, and their exhaust gas has a high temperature, which can be used for waste heat and power utilization by turbines, waste heat boilers and steam turbines, thus forming an energy-sufficient High-efficiency power generation system with cascade utilization. And the solid oxide fuel cell is recovering CO 2 It has a unique structural advantage: when the fuel and air undergo electrochemical reactions, they flow in their respective channels and do not mix directly, avoiding a large amount of N in the air. 2 to CO 2 The blending dilution, which is lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02C6/00F01D15/10H01M8/04H01M8/06
CPCY02E60/50
Inventor 段立强黄科薪杨勇平
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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