Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Heat exchange type system and method for removing carbon monoxide and denitrating flue gas

A carbon monoxide and heat-exchanging technology, applied in chemical instruments and methods, separation methods, gas treatment, etc., can solve problems such as poor anti-sulfur performance, catalyst deactivation, etc., to reduce pollution, avoid secondary pollution, and save fuel Effect

Active Publication Date: 2021-02-26
ZHONGYE-CHANGTIAN INT ENG CO LTD
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For the denitrification process of flue gas in the prior art, it is necessary to heat up the flue gas through an external heating system before the denitrification process can be carried out; in the prior art, the carbon monoxide in the flue gas is not treated and discharged directly and carbon monoxide catalysts have poor sulfur resistance at low temperatures and easily lead to technical problems such as catalyst deactivation. The present invention proposes a system and method for removing carbon monoxide and denitrification of flue gas

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
  • Heat exchange type system and method for removing carbon monoxide and denitrating flue gas
  • Heat exchange type system and method for removing carbon monoxide and denitrating flue gas
  • Heat exchange type system and method for removing carbon monoxide and denitrating flue gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] Such as figure 1 As shown, a system for removing carbon monoxide and denitrification from flue gas, the system includes a hot air system 1, a CO reactor 2, and an SCR reactor 3. The hot blast system 1 includes a hot blast stove 101 and a heat exchanger 102 . The CO reactor 2 includes a main reaction tower 201 and a bypass 202 . The first pipeline L1 and the second pipeline L2 branched from the raw flue gas transmission pipeline L0 are respectively connected to the main reaction tower 201 and the bypass 202 of the CO reactor 2 . Both the third pipeline L3 drawn from the flue gas outlet of the main reaction tower 201 of the CO reactor 2 and the fourth pipeline L4 drawn from the bypass 202 of the CO reactor 2 are connected to the SCR reaction via the fifth pipeline L5 after being combined. Device 3. The sixth pipe L6 drawn from the hot blast outlet of the hot blast stove 101 is connected to the first medium inlet of the heat exchanger 102 . A seventh pipe L7 drawn from...

Embodiment 2

[0101] Example 1 is repeated, except that the first medium outlet of the heat exchanger 102 is connected to the raw flue gas delivery pipeline L0 via the eighth pipeline L8.

Embodiment 3

[0103] Embodiment 2 is repeated, except that the system further includes a first valve k1 arranged on the first pipeline L1. The first valve k1 is located upstream of the point where the seventh pipeline L7 is connected to the first pipeline L1. The system also includes a second valve k2 arranged on the second pipeline L2. The system also includes a gas delivery pipeline L10 connected to the supplementary gas inlet of the hot blast stove 101 . The system also includes a combustion-supporting gas delivery pipeline L11 connected to the combustion-supporting gas supplementary inlet of the hot blast stove 101 .

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

No PUM Login to View More

Abstract

The invention discloses a system for removing carbon monoxide and denitrifying flue gas. The system comprises a hot air system (1), a CO reactor (2) and an SCR reactor (3), a first pipeline (L1) and asecond pipeline (L2) which are branched from a raw flue gas conveying pipeline (L0) are respectively connected to a main reaction tower (201) and a bypass (202) of the CO reactor (2); a third pipeline (L3) led out from a flue gas outlet of a main reaction tower (201) of the CO reactor (2) and a fourth pipeline (L4) led out from the bypass (202) of the CO reactor (2) are combined and then connected to the SCR reactor (3) through a fifth pipeline (L5); a sixth pipeline (L6) led out from a hot air outlet of a hot air furnace (101) is connected to a first medium inlet of a heat exchanger (102); and a seventh pipeline (L7) led out from a second medium outlet of the heat exchanger (102) is connected to the first pipeline (L1). According to the invention, the problem that a CO catalyst is easy to inactivate when meeting sulfur oxide in a low-temperature state is avoided, and meanwhile, the use of fuel is saved.

Description

technical field [0001] The invention relates to a treatment system and a treatment method for flue gas purification, in particular to a system and method for removing carbon monoxide and denitrification from flue gas, and belongs to the technical fields of chemical industry and environmental protection. Background technique [0002] For industrial flue gas, especially for sintering machine flue gas in the iron and steel industry, flue gas denitrification technology is a flue gas purification technology applied to the chemical industry where multiple nitrogen oxides are generated. Flue gas denitrification refers to the removal of the generated NO X Revert to N 2 , so as to remove NO from the flue gas X According to the treatment process, it can be divided into wet denitrification and dry denitrification. Flue gas denitrification technologies mainly include dry method (selective catalytic reduction flue gas denitrification, selective non-catalytic reduction method denitrifi...

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): B01D53/75B01D53/62B01D53/86B01D53/56F23J15/08
CPCB01D53/75B01D53/62B01D53/8628B01D53/8631F23J15/08B01D2258/0283Y02A50/20
Inventor 叶恒棣魏进超刘昌齐康建刚
Owner ZHONGYE-CHANGTIAN INT ENG CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com