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Flue Gas Treatment System And Method

A flue gas and dust technology, applied in the direction of gas treatment, combustion method, separation method, etc., can solve the problem that the reaction cannot develop significantly

Inactive Publication Date: 2016-08-24
GENERAL ELECTRIC TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the system of EP 14187641, in the reactor, the reaction takes place to a high degree (even if not exclusively), because in the reactor the amount of fresh reactant allows a high reaction rate, whereas in the system different from the reactor In the part, the reacting components in the smoke are diluted by the non-reacting components, so that the reaction cannot develop significantly

Method used

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  • Flue Gas Treatment System And Method

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Embodiment Construction

[0027] In the following, the methods for treating HCl and SO containing 2 The flue gas treatment system 1 of the flue gas.

[0028] System 1 includes: reactor 2, used to make the HCl and / or SO contained in the flue gas FG 2 At least a portion of the reactive fume RD reacts to form the first soot product FDP; a pre-separator 3, located downstream of the reactor 2, is used to remove a portion of the first soot product FDP from the flue gas FG and will contain the first soot product The remaining part of the flue gas is sent to the separator 4; the separator 4, which is preferably a fabric filter, is located downstream of the pre-separator 3, and is used to further make the HCl and / or SO contained in the flue gas FG 2 reaction, to facilitate the formation of the second soot product SDP, and for removing the second soot product SDP from the flue gas FG; and a humidifier 5, located downstream of the separator 4, for humidifying at least the second soot product to form reactive fu...

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Abstract

The flue gas treatment system (1) comprises a reactor (2), a pre-separator (3) downstream of the reactor (2), a separator (4) such as a fabric filter downstream of the pre-separator (3), a humidifier (5) downstream of the separator (4), a supply (7) of a pure fresh reagent into the flue gas (FG) downstream of the pre-separator (3) and upstream of or at the separator (4).

Description

technical field [0001] The invention relates to a flue gas treatment system and method. In particular, the present systems and methods are suitable for treating 2 and HCl flue gas; containing SO 2 The gas and HCl may eg originate from the combustion of different fuels such as coal or other fuels, but typically it is generated by the combustion of waste. Background technique [0002] US 7850936 discloses a method for removing SO from flue gas with high efficiency 2 A system having: a reactor in which the SO contained in the flue gas 2 Reacts with reactants to form a soot product; a separator, where the soot product is removed from the flue gas; and a humidifier, where the soot product is humidified and transported back into the reactor. In order to obtain high SO 2 Removal efficiency, US7850936 proposes to increase the humidification rate, and to avoid bag sticking, cold spot condensation and other problems, US7850936 proposes to install a pre-separator between the react...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/80B01D53/50B01D53/68B01D50/00
CPCB01D53/502B01D53/68B01D53/80B01D2259/126B01D2258/0283B01D2251/404B01D50/20B01D53/346B01D2251/604B01D2258/0291F23J2215/20F23J2215/30F23J15/022F23J15/04F23J2217/101F23J2217/40F23J2219/20B01D53/83B01D53/508B01D53/685B01D2257/2045B01D45/16B01D53/96B01D2257/302
Inventor R.雷林
Owner GENERAL ELECTRIC TECH GMBH