Analysis on PM2.5 Emission Characteristics of Wet Desulfurization System
In order to systematically analyze the emission characteristics of PM2.5 at the outlet of wet desulfurization system(WFGD), based on the on-site test of the particulate matter(PM) and PM2.5 at the exit of WFGD in 26 ultra-low emission units, the effects of inlet PM concentration, flue gas flow rate,...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
State Grid Energy Research Institute
2021-06-01
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| Series: | Zhongguo dianli |
| Subjects: | |
| Online Access: | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202003232 |
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| Summary: | In order to systematically analyze the emission characteristics of PM2.5 at the outlet of wet desulfurization system(WFGD), based on the on-site test of the particulate matter(PM) and PM2.5 at the exit of WFGD in 26 ultra-low emission units, the effects of inlet PM concentration, flue gas flow rate, liquid gas ratio, pH value and droplet concentration on the PM2.5 emission at the outlet of WFGD are investigated. The measurement results indicate that the proportion of PM2.5 to PM surges with the decrease of mass concentration for PM. PM2.5 emission coefficient increases with the increase of flue gas flow rate, liquid gas ratio, pH value or droplet concentration for absorption tower. The increase rate of PM2.5 emission coefficient is higher than the increase rate of flue gas flow rate, liquid gas ratio and pH value, but it is basically consistent with the increase rate of droplet concentration. Which shows that droplet concentration has a direct impact on PM2.5 emission coefficient, ant the key to reduce PM2.5 emission factor is to control droplet concentration in WFGD. |
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| ISSN: | 1004-9649 |