| Low SO2 emission from CFB co-firing MSW and bituminous |
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| 作者姓名： | LU Qing-gang LI Zhi-wei NA Yong-jie BAO Shao-lin SUN Yun-kai HE Jun |
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| 作者单位： | InstituteofEngineeringThermophysics,ChineseAcademyofSciences,Beijing100080,China |
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| 摘 要： | Influence of co-firing rate on SO2 emission from co-firing municipal solid waste(MSW) and bituminous containing high amount of sulfur(1.79%) was studied in a 0.15 MWt circulating fluidized bed (CFB). The temperature selected is 1123 K, typical for MSW incineration using CFB. The particle concentration in the dilution zone of the furnace, the alkali metal concentration and sulfate concentration in the recirculating ash and fly ash, and flue gas composition were determined. The results showed that the addition of MSW leads to a significant decrease in SO2 emission. Concentration of SO2 in flue gas decreased to 0 with the co-firing rate greater than 51%. This reduction in SO2 emission is attributed both to the high particle concentration in the dilution zone of the furnace, the high content of alkali metals in the bed material, and to the comparatively high concentration of HCI in flue gas during co-firing of MSW and bituminous.
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| 关 键 词： | SO2 CFB 沥青 固体废物 环境保护 煤 冶金行业 |
| 收稿时间： | 2003/11/17 0:00:00 |
| 修稿时间： | 1/6/2004 12:00:00 AM |
Low SO2 emission from CFB co-firing MSW and bituminous |
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| LU Qing-gang,LI Zhi-wei,NA Yong-jie,BAO Shao-lin,SUN Yun-kai,HE Jun.Low SO2 emission from CFB co-firing MSW and bituminous[J].Journal of Environmental Sciences,2004,16(5):821-824. |
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| Authors: | Lu Qing-Gang Li Zhi-Wei Na Yong-Jie Ba Shao-Lin Sun Yun-Kai He Jun |
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| Institution: | Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100080,China |
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| Abstract: | Influence of co-firing rate on SO 2 emission from co-firing municipal solid waste(MSW) and bituminous containing high amount of sulfur(1.79%) was studied in a 0.15 MWt circulating fluidized bed(CFB). The temperature selected is 1123 K, typical for MSW incineration using CFB. The particle concentration in the dilution zone of the furnace, the alkali metal concentration and sulfate concentration in the recirculating ash and fly ash, and flue gas composition were determined. The results showed that the addition of MSW leads to a significant decrease in SO 2 emission. Concentration of SO 2 in flue gas decreased to 0 with the co-firing rate greater than 51%. This reduction in SO 2 emission is attributed both to the high particle concentration in the dilution zone of the furnace, the high content of alkali metals in the bed material, and to the comparatively high concentration of HCl in flue gas during co-firing of MSW and bituminous. |
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| Keywords: | co-firing municipal solid waste bituminous CFB SO 2 |
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