System device and method for modifying coke oven gas to directly reduce iron ore

A coke oven gas and system device technology, applied in the direction of reducing gas emissions, can solve the problem of high cost

Active Publication Date: 2014-07-02
丰镇市新太新材料科技有限公司
View PDF2 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Objectively speaking, partial oxidation reforming and steam reforming and CO 2 Compared with reforming, it also has its shortcomings: the substance that reacts with methane is oxygen, and its cost is obviously higher than that of steam reforming in terms of the way of obtaining raw materials

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
  • System device and method for modifying coke oven gas to directly reduce iron ore
  • System device and method for modifying coke oven gas to directly reduce iron ore
  • System device and method for modifying coke oven gas to directly reduce iron ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The low CO of this embodiment 2 For the system device and process flow of coke oven gas upgrading and direct reduction of iron ore, please refer to figure 1 .

[0053] The system equipment includes coke oven gas supply system, air supply system, oxygen separation system, high temperature desulfurization system, coke oven gas dry gasification cracking reaction system, coke oven gas reforming reaction system and iron ore direct reduction system; The structural composition of each system and the connection mode of the configured devices are as follows:

[0054] 1. Coke oven gas supply system: coke oven gas 1 is sent to the lower end of reforming reactor 5 through pipelines through high-temperature desulfurization reactor 2, heat exchanger 3, and dry gasification cracking reactor 4.

[0055] 2. Air supply system: The air 11 is delivered to the lower end of the oxygen separator 7 through the pipeline sequentially through the compressor 10, the waste heat recovery device 9 ...

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 relates to a system device and method for modifying coke oven gas to directly reduce iron ore, and belongs to the technical field of non-blast furnace iron-making process. The invention provides a new process, the coke oven gas produced in the coking process is modified and reformed as hydrogen-enriched reducing gas (H2 and CO), and the hydrogen-enriched reducing gas is introduced into a shaft furnace to directly reduce the iron ore. The large quantity of hydrogen-enriched reducing gas required for direct iron reduction technology is provided by the invention, the obtained hydrogen-enriched reducing gas obtained by modifying is used for the direct reduction of the iron ore so as to effectively reduce the emission of carbon dioxide in the iron ore reduction process, the direct reduction is completely different from the path of directly reducing iron from the natural gas and suitable for the energy resource feature of China.

Description

technical field [0001] The invention relates to a system device and method for directly reducing iron ore by coke oven gas upgrading, and belongs to the technical field of non-blast furnace ironmaking technology. Background technique [0002] With the rapid development of the world economy and the substantial improvement of the level of science and technology, the scale of human transformation of nature and the use of natural resources has expanded unprecedentedly, and more and more resources have been obtained from the natural environment. At the same time, the pollutants discharged are also increasing day by day. This has caused problems such as environmental pollution, ecological environment damage, and resource and energy shortages. At present, the environmental problems that threaten the survival of human beings and have been recognized by human beings mainly include greenhouse effect, ozone layer destruction and acid rain. The main cause of global warming is the large...

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 Applications(China)
IPC IPC(8): C21B13/00
CPCY02P10/143
Inventor 杨志彬丁伟中
Owner 丰镇市新太新材料科技有限公司
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