Unlock instant, AI-driven research and patent intelligence for your innovation.

Flue gas circulation cooling method for increasing flue gas carbon dioxide concentration

A carbon dioxide and cooling method technology, which is applied in the direction of indirect carbon dioxide emission reduction, combustion method, furnace cooling, etc., can solve the problems of high cost of capture and recovery, carbon emission and greenhouse effect, and exhaust gas into the atmosphere, so as to reduce the greenhouse effect, reduce environmental protection, and reduce carbon emissions

Active Publication Date: 2016-04-20
SHOUGANG JINGTANG IRON & STEEL CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the CO in the flue gas 2 Directly discharged into the atmosphere, causing carbon emissions to cause greenhouse effect and pollute the environment
[0004] With the development of my country's steel industry and petrochemical industry, various combustion devices have been more and more widely used. Since the current development of clean energy such as hydrogen energy, solar energy, and wind energy has not yet reached the level of large-scale application, combustion devices in various industries are still The use of carbon-containing energy such as coal and petroleum as the basic raw material undoubtedly results in a large amount of CO contained in the flue gas after combustion. 2 , currently due to the CO in the flue gas emitted by the combustion device 2 The concentration is low, the cost of capture and recovery is too high, and the flue gas after combustion of various domestic combustion devices is basically directly discharged into the atmosphere, causing carbon emissions and greenhouse effects

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 circulation cooling method for increasing flue gas carbon dioxide concentration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Step 1, feed gas 2 into the sleeve kiln 1, and start the sleeve kiln 1. The sleeve kiln 1 discharges the flue gas containing carbon dioxide with a concentration above 10% into the heat exchanger 6 .

[0018] In step 2, the heat exchanger 6 sends the flue gas after heat exchange to the dust collector 5 . Step 2 includes step 21, start the blower 3, and deliver the combustion-supporting gas 4 to the heat exchanger 6; step 22, the flue gas discharged from the sleeve kiln 1 enters the heat exchanger 6; step 23, the flue gas and the combustion-supporting gas 4 are in the heat exchanger 6 for heat exchange; step 24, the flue gas after heat exchange enters the dust collector 5; step 25, the combustion-supporting gas enters the sleeve kiln 1.

[0019] Step 3, according to the intake air volume of the cooling gas in the sleeve kiln 1, the exhaust CO in the sleeve kiln 1 2 The heat exchanger 5 transports a certain amount of flue gas after dedusting to the sleeve kiln 1.

[002...

Embodiment 2

[0023] Step 1, feed gas 2 into the sleeve kiln 1, and start the sleeve kiln 1. The sleeve kiln 1 discharges the flue gas containing carbon dioxide with a concentration above 10% into the heat exchanger 6 .

[0024] In step 2, the heat exchanger 6 sends the flue gas after heat exchange to the dust collector 5 . Step 2 includes step 21, start the blower 3, and deliver the combustion-supporting gas 4 to the heat exchanger 6; step 22, the flue gas discharged from the sleeve kiln 1 enters the heat exchanger 6; step 23, the flue gas and the combustion-supporting gas 4 are in the heat exchanger 6 for heat exchange; step 24, the flue gas after heat exchange enters the dust collector 5; step 25, the combustion-supporting gas 4 enters the sleeve kiln 1.

[0025] Step 3, according to the intake air volume of the cooling gas in the sleeve kiln 1, the exhaust CO in the sleeve kiln 1 2 The heat exchanger 5 transports a certain amount of flue gas after dedusting to the sleeve kiln 1.

[0...

Embodiment 3

[0029] Step 1, feed gas 2 into the sleeve kiln 1, and start the sleeve kiln 1. The sleeve kiln 1 discharges the flue gas containing carbon dioxide with a concentration above 10% into the heat exchanger 6 .

[0030] In step 2, the heat exchanger 6 sends the flue gas after heat exchange to the dust collector 5 . Step 2 includes step 21, start the blower 3, and deliver the combustion-supporting gas 4 to the heat exchanger 6; step 22, the flue gas discharged from the sleeve kiln 1 enters the heat exchanger 6; step 23, the flue gas and the combustion-supporting gas 4 are in the heat exchanger 6 for heat exchange; step 24, the flue gas after heat exchange enters the dust collector 5; step 25, the combustion-supporting gas 4 enters the sleeve kiln 1.

[0031] Step 3, according to the intake air volume of the cooling gas in the sleeve kiln 1, the exhaust CO in the sleeve kiln 1 2 The heat exchanger 5 transports a certain amount of flue gas after dedusting to the sleeve kiln 1.

[0...

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 flue circulating cooling device and method for improving concentration of carbon dioxide of flue gas and belongs to the technical field of energy conservation and environment protection. The flue gas circulating cooling device comprises a combustion unit, a heat exchanger, a deduster and a carbon dioxide capturing and recovering device. The combustion unit is connected with the heat exchanger, an auxiliary combustion device is connected with the heat exchanger which is connected with the deduster, and the deduster is connected with the carbon dioxide capturing and recovering device and is connected with the combustion unit. By the arrangement, the concentration of the carbon dioxide of the flue gas can be increased, capturing and recovering cost can be lowered, carbon emission can be reduced, and greenhouse effect reduction and environment protection can be benefited.

Description

technical field [0001] The invention relates to the technical field of energy saving and environmental protection, in particular to a flue gas circulation cooling method for increasing the carbon dioxide concentration of the flue gas. Background technique [0002] In recent years, global warming has become the most concerned environmental protection issue in the world. The main cause of global warming is the production of a large amount of greenhouse gases, and the main component of greenhouse gases is carbon dioxide (CO 2 ), CO 2 Gas emissions have not only become the focus of media attention, but have also become an important topic in international conferences and summit meetings of major powers. Currently, five Nordic countries, Denmark, Finland, the Netherlands, Norway and Sweden, have implemented carbon taxes. In order to control carbon emissions in my country, the National Development and Reform Commission issued the "2013 Annual Report on China's Policies and Action...

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
Patent Type & Authority Patents(China)
IPC IPC(8): F27D9/00F23L15/00
CPCY02E20/34Y02P10/122
Inventor 李杨吴礼云吴冰汪洪涛陈恩军刘爱军沈军陈赞华王伟业魏唐槐吉立鹏
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD