Analysis of Energy and Material Consumption Characteristics of Double Tower Double Cycle Desulfurization System for Ultra Low Emission Unit
In order to systematically analyze the energy and material consumption characteristics of double tower double cycle desulfurization system, testing the power consumption, water consumption and limestone consumption at the exit of double tower double cycle desulfurization systems in 53 ultra-low emis...
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State Grid Energy Research Institute
2022-06-01
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| Series: | Zhongguo dianli |
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| Online Access: | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202107057 |
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| author | Zhen DU Cheng ZHANG Yue ZHU |
| author_facet | Zhen DU Cheng ZHANG Yue ZHU |
| author_sort | Zhen DU |
| collection | DOAJ |
| description | In order to systematically analyze the energy and material consumption characteristics of double tower double cycle desulfurization system, testing the power consumption, water consumption and limestone consumption at the exit of double tower double cycle desulfurization systems in 53 ultra-low emission units. And study the effects of inlet SO2 concentration, liquid gas ratio, pH value and Ca/S ratio on the energy and material consumption characteristics of unit mass SO2 removal. The measurement results indicate that the the energy consumption of SO2 removal accounts for 55%~80% of the total removal cost, while the power consumption of circulating slurry pump accounts for 50%~70% of the total energy consumption. The energy consumption per unit of SO2 removal in primary and secondary absorption tower decreases with the increase of inlet SO2 concentration, and the energy consumption per unit of SO2 removal in secondary absorption tower is much higher than that in primary absorption tower, The energy consumption per unit of SO2 removal in the first and second stage absorption towers decreased first and then increased with the increase of pH value. Which shows that in order to reduce the energy and material consumption per unit mass of SO2 in the double tower double cycle desulfurization system, the SO2 concentration at the inlet of the primary absorption tower should be controlled at 4 000~6 000 mg/m3, and the slurry pH value should be controlled at about 5.2; The concentration of SO2 at the inlet of secondary absorption tower should be controlled at 1200 mg/m3, and the pH value of slurry should be controlled at about 6.0. |
| format | Article |
| id | doaj-art-1ac4f2e830824ae083567f8f7db73ed4 |
| institution | DOAJ |
| issn | 1004-9649 |
| language | zho |
| publishDate | 2022-06-01 |
| publisher | State Grid Energy Research Institute |
| record_format | Article |
| series | Zhongguo dianli |
| spelling | doaj-art-1ac4f2e830824ae083567f8f7db73ed42025-08-20T02:56:54ZzhoState Grid Energy Research InstituteZhongguo dianli1004-96492022-06-0155620821410.11930/j.issn.1004-9649.202107057zgdl-55-06-duzhenAnalysis of Energy and Material Consumption Characteristics of Double Tower Double Cycle Desulfurization System for Ultra Low Emission UnitZhen DU0Cheng ZHANG1Yue ZHU2Huadian Electric Power Research Institute Co., Ltd., Hangzhou 310030, ChinaGuangdong Ocean University, Zhanjiang 524088 , ChinaHuadian Electric Power Research Institute Co., Ltd., Hangzhou 310030, ChinaIn order to systematically analyze the energy and material consumption characteristics of double tower double cycle desulfurization system, testing the power consumption, water consumption and limestone consumption at the exit of double tower double cycle desulfurization systems in 53 ultra-low emission units. And study the effects of inlet SO2 concentration, liquid gas ratio, pH value and Ca/S ratio on the energy and material consumption characteristics of unit mass SO2 removal. The measurement results indicate that the the energy consumption of SO2 removal accounts for 55%~80% of the total removal cost, while the power consumption of circulating slurry pump accounts for 50%~70% of the total energy consumption. The energy consumption per unit of SO2 removal in primary and secondary absorption tower decreases with the increase of inlet SO2 concentration, and the energy consumption per unit of SO2 removal in secondary absorption tower is much higher than that in primary absorption tower, The energy consumption per unit of SO2 removal in the first and second stage absorption towers decreased first and then increased with the increase of pH value. Which shows that in order to reduce the energy and material consumption per unit mass of SO2 in the double tower double cycle desulfurization system, the SO2 concentration at the inlet of the primary absorption tower should be controlled at 4 000~6 000 mg/m3, and the slurry pH value should be controlled at about 5.2; The concentration of SO2 at the inlet of secondary absorption tower should be controlled at 1200 mg/m3, and the pH value of slurry should be controlled at about 6.0.https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202107057double tower double cycle desulfurization systemenergy consumptionmaterial consumptionph valueliquid gas ratio |
| spellingShingle | Zhen DU Cheng ZHANG Yue ZHU Analysis of Energy and Material Consumption Characteristics of Double Tower Double Cycle Desulfurization System for Ultra Low Emission Unit Zhongguo dianli double tower double cycle desulfurization system energy consumption material consumption ph value liquid gas ratio |
| title | Analysis of Energy and Material Consumption Characteristics of Double Tower Double Cycle Desulfurization System for Ultra Low Emission Unit |
| title_full | Analysis of Energy and Material Consumption Characteristics of Double Tower Double Cycle Desulfurization System for Ultra Low Emission Unit |
| title_fullStr | Analysis of Energy and Material Consumption Characteristics of Double Tower Double Cycle Desulfurization System for Ultra Low Emission Unit |
| title_full_unstemmed | Analysis of Energy and Material Consumption Characteristics of Double Tower Double Cycle Desulfurization System for Ultra Low Emission Unit |
| title_short | Analysis of Energy and Material Consumption Characteristics of Double Tower Double Cycle Desulfurization System for Ultra Low Emission Unit |
| title_sort | analysis of energy and material consumption characteristics of double tower double cycle desulfurization system for ultra low emission unit |
| topic | double tower double cycle desulfurization system energy consumption material consumption ph value liquid gas ratio |
| url | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202107057 |
| work_keys_str_mv | AT zhendu analysisofenergyandmaterialconsumptioncharacteristicsofdoubletowerdoublecycledesulfurizationsystemforultralowemissionunit AT chengzhang analysisofenergyandmaterialconsumptioncharacteristicsofdoubletowerdoublecycledesulfurizationsystemforultralowemissionunit AT yuezhu analysisofenergyandmaterialconsumptioncharacteristicsofdoubletowerdoublecycledesulfurizationsystemforultralowemissionunit |