Method for preparing denitration catalytic composition and flue gas denitration method

A composition and denitrification technology, applied in the field of flue gas purification, can solve the problems of denitrification wastewater generation, unstable denitrification efficiency, and high energy consumption in operation

Inactive Publication Date: 2018-04-03
史汉祥
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of technology is still immature, and there are problems such as unstable denitrification efficiency, denitrification wastewater, and high energy consumption in operation.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing denitration catalytic composition and flue gas denitration method
  • Method for preparing denitration catalytic composition and flue gas denitration method
  • Method for preparing denitration catalytic composition and flue gas denitration method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] Specific embodiments provided by the present invention are described below.

[0031] The embodiment of the present invention provides a method for preparing a denitration catalytic composition, comprising the following steps:

[0032] S100, ingredients. By weight, the weight (grams) and specific types of coal ash, clay, modifiers and combustibles are used for batching.

[0033] Wherein, the clay may be at least one of kaolin, bentonite and attapulgite. Combustion products can be at least one of coal powder and coke powder; modifiers can be MnO, V 2 o 5 、Cr 2 o 3 , CuO, Fe 2 o 3 、Al 2 o 3 、TiO 2 At least one of carbon and carbon; the fly ash can be the fly ash produced by a pulverized coal furnace.

[0034] Concrete batching and weight ratio are as follows:

[0035]

[0036] S200, mixing the powder materials with water and stirring evenly, extruding to form granules.

[0037] After the batching is completed, mix the powder materials and add an appropriate...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Finenessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a method for preparing denitration catalytic composition and a flue gas denitration method. According to the method for preparing the denitration catalytic composition, fly ash, clay, a modifier and a combustion substance are used as raw materials for proportioning, the materials are mixed with water, stirred uniformly and extruded into granules; sintering is performed after drying, and heat activation treatment is performed in a closed space. The prepared denitration catalytic composition forms a porous material with higher specific surface area, a large quantity of active metal oxides are attached to inner surfaces of pores, so that NOx can be reduced by NH3 when the flue gas temperature is 40-200 DEG C, and the purpose of stable denitration is achieved.

Description

technical field [0001] The invention relates to flue gas purification technology, in particular to a method for preparing a denitrification catalytic composition, and also to a flue gas denitrification method using the denitrification catalytic composition prepared by the method. Background technique [0002] At present, in the production of thermal power generation, metal smelting, chemical engineering and other enterprises, flue gas will be generated due to coal combustion or corresponding reactions; these flue gases contain SO 2 and NOx and other pollutants, these pollutants have formed the main source of air pollution, SO 2 , NO X is the main cause of acid rain. [0003] With desulfurization (SO 2 ) technology is increasingly perfect and the large-scale application of desulfurization facilities, SO 2 Emissions began to be effectively controlled, NO X The problem of pollution is becoming more and more prominent. The removal of pollutants such as NOx in the flue gas,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B01J23/78B01J23/847B01J23/86B01J23/889B01D53/90B01D53/56
CPCB01D53/8628B01D53/90B01J23/78B01J23/8472B01J23/862B01J23/868B01J23/8892B01J37/08B01J35/60
Inventor 史汉祥史跃展
Owner 史汉祥
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap