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Hydrogen assisted oxy-fuel combustion

A burner, fuel flow technology, applied in the field of oxy-fuel combustion systems, can solve problems such as flame stability problems

Inactive Publication Date: 2013-06-05
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the oxygen-fuel O 2 Concentrations below a certain level can cause flame stability problems

Method used

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  • Hydrogen assisted oxy-fuel combustion
  • Hydrogen assisted oxy-fuel combustion
  • Hydrogen assisted oxy-fuel combustion

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Experimental program
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Embodiment Construction

[0039] Embodiments of the present invention include oxy-fuel combustion using mixed hydrogen fuel.

[0040] In the following specification and appended claims, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise.

[0041] Oxygen-fuel combustion in gas turbine applications is zero NO x One of the main ways of emission combustion. Oxy-fuel combustion enables carbon dioxide (CO 2 ) Capture and storage, and for CO 2 The application of oxygen-free pollution is an attractive technology. In a gas turbine operating in an oxy-fuel process, CO is not required 2 Separation unit, because the main components of combustion exhaust mainly include CO 2 And water (H 2 O). By making H 2 O condenses, or uses the exhaust stream in the heat recovery steam generation (HRSG) process to produce high concentrations of CO 2 Flow, and CO 2 Stream can be used for CO 2 Storage or other CO 2 application.

[0042] In general, the system 10 mainly includes...

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Abstract

The invention relates to hydrogen assisted oxy-fuel combustion. A system and a method for hydrogen assisted oxy-fuel combustion are provided. The system includes a combustor (14), an air separation unit (12), a fuel stream (22) source, and a condenser (16). The combustor (14) includes an oxygen input port (42), a fuel stream input port (44), a carbon dioxide input port (48), and an exhaust output port (46). The air separation unit (12) is in fluid communication with the combustor (14) via the oxygen input port (42) of the combustor (14). The fuel stream source (54) is in fluid communication with the combustor (14) via the fuel stream input port (44) and includes a fuel source and a hydrogen source. The condenser (16) is disposed to receive an exhaust from the combustor (14) via the exhaust output port (46) and to return an output stream to the combustor (14) via the carbon dioxide input port (48). The method includes combusting a fuel stream in a combustor in the presence of an oxidizer to generate an exhaust gas.

Description

Technical field [0001] The present invention generally relates to systems and methods for oxy-fuel combustion. More specifically, the present invention relates to hydrogen-assisted oxy-fuel combustion. Background technique [0002] For example, the exhaust stream produced by burning fossil fuels in power generation systems includes nitrogen oxides (NO) as by-products during combustion. x ) And carbon monoxide (CO). NO from power plants using fossil fuels x And CO emissions are increasingly being punished by national and international regulations. With the emission of NO x And the cost of CO increases, and emission reduction is important for economical power production. [0003] Reduce NO x One method of emission is to remove NO from exhaust gas through selective catalytic reduction x . Used to remove NO from exhaust x Achieve near zero NO x The method is the oxy-fuel combustion process. In this method, in contrast to the use of air, pure oxygen (typically combined with a second...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C3/34F23L7/00
CPCF23J15/06F23L2900/07005Y02E20/344F23C9/00F23L2900/07001F23L2900/07002Y02E20/363Y02E20/346F23L7/007Y02E20/322F25J3/04533F25J3/04569F25J2260/80Y02E20/32Y02E20/34
Inventor A.M.埃尔卡迪U.O.伊达霍萨
Owner GENERAL ELECTRIC CO