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A rotary hc-scr denitrification reactor

An HC-SCR and denitration reactor technology, applied in the field of rotary HC-SCR denitration reactors, can solve the problems of inability to effectively use and reduce NOx, low denitration efficiency, etc., and achieve the effect of improving efficiency and denitration efficiency.

Active Publication Date: 2015-08-12
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the higher the oxygen concentration in the flue gas, the more hydrocarbons will be oxidized by oxygen, and the less hydrocarbons can be effectively used to reduce NOx, the lower the overall denitrification efficiency will be.

Method used

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  • A rotary hc-scr denitrification reactor
  • A rotary hc-scr denitrification reactor
  • A rotary hc-scr denitrification reactor

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Embodiment Construction

[0021] Further description will be given below in combination with specific embodiments.

[0022] A rotary HC-SCR denitrification reactor, including a catalyst body structure and a shell 1 outside the catalyst body structure, the catalyst body structure is cylindrical, including a central axis rotor 2, a multi-layered circular structure that can rotate around the central axis rotor 2 Catalyst layer 4, multi-layer circular catalyst layer 4 is divided into adsorption zone 5 and reduction zone 7 by radial sealing plate 3 and axial sealing plate, there is transition zone 6 between adsorption zone 5 and reduction zone 7, adsorption zone 5, The reduction zone 7 and the transition zone 6 are shown as different fan-shaped areas on each circular catalyst layer 4. The adsorption zones of each circular catalyst layer are connected up and down, and the reduction zones of each circular catalyst layer are connected up and down. There are air inlets and air outlets respectively corresponding...

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Abstract

The invention relates to a rotary HC-SCR (Hydrocarbon Selective Catalyst Reduction) denitration reactor, comprising a catalyst body structure and a shell outside the catalyst body structure, wherein the catalyst body structure is in a cylindrical shape, and comprises a center shaft rotor, and a plurality of round catalyst layers capable of rotating around the center shaft rotor; each round catalyst layer is divided into an adsorption area and a reduction area by a radial sealing plate and an axial sealing plate; a transition area is formed between the adsorption area and the reduction area; the adsorption area, the reduction area and the transition area are different sector areas on each round catalyst layer; the adsorption areas on the round catalyst layers are communicated up and down; the reduction areas on the round catalyst layers are communicated up and down; an air inlet and an air outlet, which correspond to the adsorption areas and the reduction areas, respectively, are formed in the shell. The efficiencies of the adsorption and reduction processes are respectively improved by separation of the adsorption areas and the reduction areas, so as to improve the denitration efficiency of the overall reactor.

Description

technical field [0001] The invention relates to flue gas treatment equipment for power plants or other coal-fired boilers, in particular to a rotary HC-SCR denitrification reactor, which belongs to the technical innovation field of coal-fired flue gas pollutant emission reduction. Background technique [0002] Nitrogen oxides (NOx) are one of the main air pollutants, which can form acid rain or acid mist combined with hydrocarbons to form photochemical smog and destroy the ozone layer. At present, more than 60% of nitrogen oxides come from flue gas produced by coal combustion. At present, the most widely used, mature and effective flue gas denitrification technology in the world is the selective catalytic reduction of NOx technology (NH 3 -SCR). NH 3 -SCR technology has high denitrification efficiency, is mature and reliable, and has strong adaptability. It is especially suitable for coal-fired units in areas with variable coal quality, frequent unit load changes and sens...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/90B01D53/56
Inventor 程星星马春元王志强董勇王涛
Owner SHANDONG UNIV
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