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Multi-function duct for dry scrubber system

A multifunctional, pipeline technology, applied in chemical instruments and methods, gas treatment, membrane technology, etc., to achieve the effect of excellent structural simplification, improved equipment pressure management, and significant equipment pressure management

Inactive Publication Date: 2019-05-21
GENERAL ELECTRIC TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] While methods and apparatus exist that are capable of removing both particulate and gaseous pollutants from flue gas streams, there remains a need for improved DFGD methods and apparatus at lower cost while maintaining system stability, efficiency, and effectiveness

Method used

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  • Multi-function duct for dry scrubber system
  • Multi-function duct for dry scrubber system
  • Multi-function duct for dry scrubber system

Examples

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Embodiment Construction

[0028] refer to figure 1 , there is disclosed herein an apparatus 10, such as a power plant or industrial plant, that includes a combustion unit 12, such as, for example, a boiler unit that produces steam. The combustion unit 12 can be supplied with at least one oxygen-containing gas G (for example, air, O 2 gas or including O 2 gas of gas). Likewise, the combustion unit 12 may be supplied with carbonaceous fuel F from the fuel supply 16 via a fluidly connected fuel conduit 16A for combustion of the fuel F within the combustion unit 12 . The fuel F supplied to the combustion unit 12 is preferably a fossil fuel such as, for example, coal, oil or natural gas. In addition to steam, flue gas FG is produced when the fuel F is burned in the combustion unit 12 . The steam produced by the combustion of the fuel F may be sent to a turbine (not shown) for use in power generation, or for other uses such as, for example, district heating, preheating of the combustion unit 12, and the ...

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PUM

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Abstract

A multi-function duct (26) for a dry scrubber system (20) useful for processing a gas stream, such as a fluegas (FG) stream produced by a fossil fuel fired boiler (12), a combustion process or the like, is provided. The multi-function duct (26) is useful for a circulating dry scrubber (CDS) dry flue gas desulfurization (DFGD) system (20) operable for dry or moistened reducing agent (MR) distribution into a flue gas (FG) stream flowing therethrough. As such, the distributed dry or moistened reducing agent (MR) reacts with acid gas in the flue gas (FG) to produce a dry reaction product (DR).

Description

technical field [0001] The present disclosure generally relates to multifunctional ducting for dry scrubber systems useful for handling gas streams such as flue gas streams produced by fossil fuel fired boilers, combustion processes, and the like. More specifically, the present disclosure relates to a multifunctional conduit for a circulating dry scrubber (CDS) dry flue gas desulfurization (DFGD) system operable to convert dry or wet reductant Distributed to the flue gas stream flowing through it. Background technique [0002] In the treatment of flue gases, dry flue gas desulfurization (DFGD) systems are known. In the DFGD system, lime (CaO) is first transformed into mature lime (Ca(OH) 2 ), which are then placed in contact with the flue gas to be treated. Within a circulating dry scrubber (CDS) DFGD system, slaked lime is placed in contact with the flue gas as a dry or wet powder. An example of such a CDSDFGD system is the General Electric NID TM system (General Elect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/34B01D53/50B01D53/83
CPCB01D53/346B01D53/508B01D53/83B01D2259/126B01D2259/128B01D53/343B01D2251/20B01D2251/404B01D2251/604
Inventor B.R.哈巴德四世M.A.费德勒
Owner GENERAL ELECTRIC TECH GMBH
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