Ferromagnetic catalyst for treating nitric oxides in exhaust gas through selective catalytic reduction reaction and method thereof

A technology of ferrite magnets and nitrogen oxides, which is applied in the field of ferrite magnet catalyst and its field for selective catalytic reduction reaction to treat nitrogen oxides in exhaust gas, can solve the problems of high reaction temperature of SCR catalyst and narrow effective treatment temperature range, etc. To achieve the effect of reducing the starting temperature

Inactive Publication Date: 2018-07-17
NAT KAOHSIUNG UNIV OF SCI & TECH
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Problems solved by technology

[0010] However, although the aforementioned patent announcements No. I460004, No. I453065 and No. I474859 have disclosed various catalyst structures, they

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  • Ferromagnetic catalyst for treating nitric oxides in exhaust gas through selective catalytic reduction reaction and method thereof
  • Ferromagnetic catalyst for treating nitric oxides in exhaust gas through selective catalytic reduction reaction and method thereof
  • Ferromagnetic catalyst for treating nitric oxides in exhaust gas through selective catalytic reduction reaction and method thereof

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[0040] In order to fully understand the present invention, preferred embodiments are exemplified below and illustrated in detail with accompanying drawings, and they are not intended to limit the present invention.

[0041] The preferred embodiment of the present invention uses a selective catalytic reduction reaction to treat the ferrite magnet catalyst material of nitrogen oxides in exhaust gas, its treatment system and its treatment method are suitable for combined application in various exhaust emission treatment equipment, for example: especially suitable for application in automobiles Engine combustion (for example: diesel engine), industrial combustion (for example: boiler system), waste incineration treatment industry, petrochemical industry, metal smelting industry exhaust gas treatment, but it is not intended to limit the present invention.

[0042] figure 1 A schematic flow diagram of a method for treating nitrogen oxides in exhaust gas by a selective catalytic reduction ...

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Abstract

The invention discloses a method for treating nitric oxides in exhaust gas through a selective catalytic reduction reaction. The method comprises the following steps: preparing a catalytic agent froma ferromagnetic catalyst material so as to form a ferromagnetic catalyst; feeding a reducing agent into exhaust gas so as to conveniently remove nitric oxides in the exhaust gas; matching the ferromagnetic catalyst and the reducing agent, and treating a nitric oxide in the exhaust gas in a selective catalytic reduction reaction manner; transforming the nitric oxide in the exhaust gas into nitrogenand water vapor after the selective catalytic reduction reaction is completed. The treatment temperature of the ferromagnetic catalyst reduction reaction ranges from 50 DEG C and 450 DEG C.

Description

technical field [0001] The present invention relates to a catalyst and method for treating exhaust gas nitrogen oxides (NOx) by selective catalytic reduction reaction (Selective Catalytic Reduction reaction, SCR reaction); Ferrite catalyst and method thereof. Background technique [0002] Commonly used catalysts for selective catalyst reduction reactions, for example: China Taiwan Patent Publication No. I496740 "Preparation of bimetallic selective reduction activated carbon catalysts for nitrogen oxide reduction using iron, nickel, cobalt, manganese / aluminum and its preparation method" The patent for invention discloses a bimetallic selective reduction activated carbon catalyst for the reduction of nitrogen oxides prepared by iron, nickel, cobalt, manganese / aluminum and its preparation method. The bimetallic selective reduction activated carbon catalyst uses the coconut shell of agricultural waste as the raw material. These activators are evenly attached to the coconut she...

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Application Information

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IPC IPC(8): B01D53/86B01D53/56B01J23/745B01J23/889
CPCB01D53/8628B01J23/002B01J23/745B01J23/8892
Inventor 张健桂
Owner NAT KAOHSIUNG UNIV OF SCI & TECH
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