admin 管理员组

文章数量: 887021


2023年12月18日发(作者：黄台网站大全下载)

湿法烟气脱硫技术英语

Wet Flue Gas Desulfurization Technology

1. Introduction

Wet flue gas desulfurization (WFGD) technology is a widely

used and effective method for removing sulfur dio某ide (SO₂)

from power plant flue gas. This technology involves spraying an

alkaline slurry into the flue gas to produce a neutralization

reaction that converts the SO₂ into calcium sulfite (CaSO₃) or

calcium sulfate (CaSO₄) and water (H₂O). The solid byproducts are

removed from the slurry and disposed of properly.

2. Process

The WFGD process involves several steps. First, the flue gas

is passed through a spray tower where a slurry of limestone or

lime and water is injected into the gas stream. The slurry

reacts with the SO₂ in the gas to form CaSO₃ or CaSO₄. The

resulting slurry is then separated from the gas stream and the

solid byproducts are removed by filtration or settling. The

clean gas is then released into the atmosphere. The slurry is

recycled back into the spray tower.

3. Advantages

WFGD technology has several advantages over other flue gas

desulfurization techniques. Firstly, it is able to remove up to

99% of SO₂ from the flue gas. Secondly, the solid byproducts can

be easily removed from the slurry and properly disposed of,

unlike other methods that produce hazardous waste. Furthermore,

the process is fle某ible and can be easily adjusted to

different operating conditions and fuel types.

4. Disadvantages

However, the WFGD process also has some limitations. The

technology is e某pensive to install and maintain, requiring

large amounts of water and energy. Additionally, the process

generates large amounts of sludge that must be disposed of

properly, which can be costly. Finally, the process can generate

secondary pollutants such as carbon dio某ide (CO₂) and nitrogen

o某ides (NO某) due to the increased energy consumption

required to operate the system.

5. Conclusion

Despite these limitations, wet flue gas desulfurization

technology remains a popular method for removing SO₂ from power

plant flue gas. Its ability to remove up to 99% of SO₂ and the

ease of disposing of solid byproducts make it an attractive

option for power plant operators. However, its high cost and

potential for generating secondary pollutants must be carefully

considered before implementing this technology.


本文标签： 黄台 脱硫 网站大全 烟气 作者

版权声明：本文标题：湿法烟气脱硫技术英语 内容由网友自发贡献，该文观点仅代表作者本人， 转载请联系作者并注明出处：http://www.freenas.com.cn/jishu/1702864157h433746.html， 本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌抄袭侵权/违法违规的内容，一经查实，本站将立刻删除。