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

Flue gas desulfurization and denitrification process

A technology for desulfurization, denitrification, and flue gas, which is applied in gas treatment, dispersed particle separation, membrane technology, etc. to save energy and reduce waste emissions.

Inactive Publication Date: 2019-10-01
绍兴亮点信息科技有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the technical problem of providing a coke oven flue gas desulfurization and denitrification process that saves energy and reduces waste discharge

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
  • Flue gas desulfurization and denitrification process
  • Flue gas desulfurization and denitrification process
  • Flue gas desulfurization and denitrification process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1, a flue gas desulfurization and denitrification process, comprising the following steps: the first step, the coke oven gas produced by the coke oven 2 is sent to the purification device 3 for treatment, and the treated purified gas is returned to the coke oven for combustion and heating, and the waste gas produced Discharge through the chimney 1, and the red coke produced simultaneously is packed into the coke tank 4; the second step, close the inlet valve of the chimney 1, open the inlet valve of the initial treatment tank 6 simultaneously, open the outlet of the induced draft fan 13 and open the induced draft fan 13; Three steps, put the red coke in the coke tank 4 into the loading device 5, put the red coke into the primary treatment tank 6 through the loading device 5, and control the temperature of the flue gas at the outlet of the primary treatment tank 6 at 220-450 °C, The coke is cooled to 220-190°C and sent to the coke discharge device 7; in the fou...

Embodiment 2

[0039] Embodiment 2, a flue gas desulfurization and denitrification process, comprising the following steps: the first step, the coke oven gas produced by the coke oven 2 is sent to the purification device 3 for treatment, and the treated purified gas is returned to the coke oven for combustion and heating, and the waste gas produced Discharge through the chimney 1, and the red coke produced simultaneously is packed into the coke tank 4; the second step, close the inlet valve of the chimney 1, open the inlet valve of the initial treatment tank 6 simultaneously, open the outlet of the induced draft fan 13 and open the induced draft fan 13; Three steps, put the red coke in the coke tank 4 into the loading device 5, put the red coke into the primary treatment tank 6 through the loading device 5, and spray NH into the primary treatment tank (6) at the same time X The temperature of the flue gas at the outlet of the primary treatment tank 6 is controlled at 220-850°C, and the red co...

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 provides a flue gas desulfurization and denitrification process which comprises the following steps of 1, conveying coke oven gas generated by a coke oven into a purification device to be treated; returning the treated purified coal gas into the coke oven to be subjected to combustion heating; exhausting generated waste gas through a chimney; meanwhile, charging the generated red coke into a coke tank; 2, closing an inlet valve of the chimney; meanwhile, opening an inlet valve entering a primary treatment tank; opening a draft fan outlet and turning on a draft fan. The red coke,the oxygen of the flue gas and the like are used for taking reaction to produce Co; the generated CO is used for reducing partial NOX in the tail gas into N2; meanwhile, the flue gas absorbs the heatof red coke so as to provide the active temperature of the medium-low-temperature desulfurization and denitrification. The waste materials are used for treating the waste materials; energy sources aresaved; meanwhile, the waste discharge is reduced.

Description

technical field [0001] The invention relates to the industrial field of gas desulfurization and denitration, in particular to a flue gas desulfurization and denitrification process. Background technique [0002] According to statistics, the content of sulfur dioxide in flue gas from coking production in my country has a wide range: 50mg / m 3 ~800mg / m 3 ; The content of nitrogen oxides varies greatly: 400mg / m 3 ~1200mg / m 3 The content of particulate matter is greatly affected by the leakage of the coke oven carbonization chamber, and it is difficult to meet the emission requirements as the age of the furnace increases; the temperature of the coke oven flue gas is relatively low, 180°C to 320°C. In order to meet the limit requirements of GB16172-2012 "Emission Standard of Pollutants for Coking Chemical Industry", it is necessary to consider the implementation of flue gas desulfurization and denitrification. [0003] At present, coke oven flue gas is treated by wet method, d...

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): B01D53/86B01D53/50B01D53/56B01D53/80
CPCB01D53/501B01D53/8609B01D53/8625B01D2258/0283
Inventor 孙俪晏廷书颜梦思
Owner 绍兴亮点信息科技有限公司
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com