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Activated carbon thermal desorption method and device capable of utilizing afterheat

An analytical device, activated carbon technology, applied in separation methods, chemical instruments and methods, other chemical processes, etc., can solve problems such as loss of heat energy

Active Publication Date: 2014-12-10
ZHONGYE-CHANGTIAN INT ENG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, if the hot air at about 320°C and the cooling air at about 100°C are directly discharged, a large amount of heat energy will be lost.

Method used

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  • Activated carbon thermal desorption method and device capable of utilizing afterheat
  • Activated carbon thermal desorption method and device capable of utilizing afterheat
  • Activated carbon thermal desorption method and device capable of utilizing afterheat

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Effect test

Embodiment 1

[0136] like Figure 5 Shown in, desulfurization, denitrification device comprises activated carbon adsorption tower (20) (tower height 30 meters, cross-sectional area 120m 2 ) and analytical towers (such as figure 2 As shown in , the tower is 20 meters high and has a cross-sectional area of ​​15m 2 ). The tower body of activated carbon adsorption tower (see Figure 8 ) has a multi-layered chamber structure parallel to each other in the vertical direction, that is, the left air outlet chamber B ← denitration chamber c ← desulfurization, denitration chamber b ← desulfurization chamber a ← intake chamber A → desulfurization chamber a → desulfurization, denitration Chamber b → denitrification chamber c → right outlet chamber B, in which the flue gas flows from the inner air inlet chamber A substantially horizontally outward along the left and right directions (to the B outlet chamber). For drawing convenience, Figure 5 The reaction tower (or adsorption tower) in is describe...

Embodiment 2

[0144] Repeat embodiment 1, just also also will be discharged from the cold wind G2 ' (about 100 ℃) of the cooling wind outlet of the cooling zone of desorption tower in addition (about 8vol%, based on flow rate or volume) Guided to the air inlet of the combustion-supporting fan, and sent into the air inlet of the combustion chamber of the heating furnace by the combustion-supporting fan.

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Abstract

The invention provides an activated carbon thermal desorption method capable of utilizing afterheat. The method comprises the following steps: adsorbing pollutants, such as sulfur oxide and nitrogen oxide by activated carbon in an activated carbon adsorption tower of a desulfurization and denitration device; when air is conveyed to an air inlet of a combustion chamber of a heating furnace through a combustion-supporting fan, conveying blast furnace gas or coke oven gas into the combustion chamber for combusting after the blast furnace gas or the coke oven gas flows through a heat exchanger and is preheated, wherein high-temperature hot gas G0 (at about 1,100 to 1,900 DEG C) exhausted from the combustion chamber flows through a temperature adjustment area at the tail part of the heating furnace and is subjected to temperature adjustment to become cooled hot gas G1 (at about 400 to 500 DEG C), then the G1 is conveyed to a hot gas inlet of a heating area of a desorption tower through a pipeline, the hot gas G1 performs indirect heat exchange with the activated carbon so that the activated carbon is desorbed and regenerated, and further cooled hot gas G1' (at about 280 to 350 DEG C) is exhausted from the heating area; and preheating the blast furnace gas or the coke oven gas in the heat exchanger by using part of the hot gas G1'. The invention also provides an activated carbon resolution device.

Description

technical field [0001] The present invention relates to the thermal analysis method and the device thereof that comprise the active carbon of waste heat utilization, more specifically, the present invention relates to the dry desulfurization that comprises activated carbon adsorption tower and analysis tower (or regeneration tower), denitrification device output from analysis tower The invention relates to a method for recovering and utilizing waste heat of heating gas (such as air or hot air), belonging to the field of sintering flue gas treatment. Background technique [0002] For industrial flue gas, especially sintering machine flue gas in the iron and steel industry, it is ideal to use desulfurization and denitrification devices and processes including activated carbon adsorption towers and desorption towers. In the desulfurization and denitrification devices including activated carbon adsorption tower and desorption tower (or regeneration tower), the activated carbon a...

Claims

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Application Information

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IPC IPC(8): B01J20/34B01J20/20
Inventor 魏进超李俊杰张震谢琛
Owner ZHONGYE-CHANGTIAN INT ENG CO LTD
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