Influencing Factors of NO Removal from Sintering Flue Gas Based on Microwave Treatment
Taking sintering flue gas simulated in the laboratory as the research object, the effects of microwave heating temperature, microwave treatment time, modified activated carbon dosage, flue gas flow rate and gas concentration on microwave denitration were studied. The test results showed that increas...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
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Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences
2022-02-01
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| Series: | Kuangchan zonghe liyong |
| Subjects: | |
| Online Access: | http://www.kczhly.com/en/article/doi/10.3969/j.issn.1000-6532.2022.01.027 |
| _version_ | 1811179299252731904 |
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| author | Yan Shi Shuai Wang Wei Guan Changqing Hu Zheng Kong |
| author_facet | Yan Shi Shuai Wang Wei Guan Changqing Hu Zheng Kong |
| author_sort | Yan Shi |
| collection | DOAJ |
| description | Taking sintering flue gas simulated in the laboratory as the research object, the effects of microwave heating temperature, microwave treatment time, modified activated carbon dosage, flue gas flow rate and gas concentration on microwave denitration were studied. The test results showed that increasing the microwave heating temperature and increasing the amount of activated carbon can significantly improve the microwave denitration efficiency. When the microwave heating temperature is 700℃ and the activated carbon dosage is 30 g/L, the denitration efficiency is 57.6% and 70.02%, respectively. When the microwave heating time is increased from 3min to 15min, the denitration efficiency is increased from 55.45% to 62.8%, but the effect is not obvious. When the flue gas flow rate is 0.3 L/min, 71.9% denitration efficiency can be obtained, and detrimental effects on denitration is shown as the flue gas flow rate increases. Being affected by the adsorption of activated carbon, as the NO concentration in the flue gas increases, the NO removal efficiency gradually decreases. When the NO concentration is 200 ×10-6, the denitration efficiency reaches the maximum of 80.25%. |
| first_indexed | 2024-04-11T06:33:35Z |
| format | Article |
| id | doaj.art-37cc0bf4babd4cdbb7f1bc424fbba78c |
| institution | Directory Open Access Journal |
| issn | 1000-6532 |
| language | zho |
| last_indexed | 2024-04-11T06:33:35Z |
| publishDate | 2022-02-01 |
| publisher | Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences |
| record_format | Article |
| series | Kuangchan zonghe liyong |
| spelling | doaj.art-37cc0bf4babd4cdbb7f1bc424fbba78c2022-12-22T04:39:55ZzhoInstitute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological SciencesKuangchan zonghe liyong1000-65322022-02-010119019410.3969/j.issn.1000-6532.2022.01.027shiyanInfluencing Factors of NO Removal from Sintering Flue Gas Based on Microwave TreatmentYan Shi0Shuai Wang1Wei Guan2Changqing Hu3Zheng Kong4North China University of Science and Technology, College of Metallurgy and Energy, Hebei Key Laboratory of Modern Metallurgy Technology, Tangshan, Hebei, ChinaNorth China University of Science and Technology, College of Metallurgy and Energy, Hebei Key Laboratory of Modern Metallurgy Technology, Tangshan, Hebei, ChinaNorth China University of Science and Technology, College of Metallurgy and Energy, Hebei Key Laboratory of Modern Metallurgy Technology, Tangshan, Hebei, ChinaNorth China University of Science and Technology, College of Metallurgy and Energy, Hebei Key Laboratory of Modern Metallurgy Technology, Tangshan, Hebei, ChinaNorth China University of Science and Technology, College of Metallurgy and Energy, Hebei Key Laboratory of Modern Metallurgy Technology, Tangshan, Hebei, ChinaTaking sintering flue gas simulated in the laboratory as the research object, the effects of microwave heating temperature, microwave treatment time, modified activated carbon dosage, flue gas flow rate and gas concentration on microwave denitration were studied. The test results showed that increasing the microwave heating temperature and increasing the amount of activated carbon can significantly improve the microwave denitration efficiency. When the microwave heating temperature is 700℃ and the activated carbon dosage is 30 g/L, the denitration efficiency is 57.6% and 70.02%, respectively. When the microwave heating time is increased from 3min to 15min, the denitration efficiency is increased from 55.45% to 62.8%, but the effect is not obvious. When the flue gas flow rate is 0.3 L/min, 71.9% denitration efficiency can be obtained, and detrimental effects on denitration is shown as the flue gas flow rate increases. Being affected by the adsorption of activated carbon, as the NO concentration in the flue gas increases, the NO removal efficiency gradually decreases. When the NO concentration is 200 ×10-6, the denitration efficiency reaches the maximum of 80.25%.http://www.kczhly.com/en/article/doi/10.3969/j.issn.1000-6532.2022.01.027microwaveactivated carbondenitrationsintering flue gas |
| spellingShingle | Yan Shi Shuai Wang Wei Guan Changqing Hu Zheng Kong Influencing Factors of NO Removal from Sintering Flue Gas Based on Microwave Treatment Kuangchan zonghe liyong microwave activated carbon denitration sintering flue gas |
| title | Influencing Factors of NO Removal from Sintering Flue Gas Based on Microwave Treatment |
| title_full | Influencing Factors of NO Removal from Sintering Flue Gas Based on Microwave Treatment |
| title_fullStr | Influencing Factors of NO Removal from Sintering Flue Gas Based on Microwave Treatment |
| title_full_unstemmed | Influencing Factors of NO Removal from Sintering Flue Gas Based on Microwave Treatment |
| title_short | Influencing Factors of NO Removal from Sintering Flue Gas Based on Microwave Treatment |
| title_sort | influencing factors of no removal from sintering flue gas based on microwave treatment |
| topic | microwave activated carbon denitration sintering flue gas |
| url | http://www.kczhly.com/en/article/doi/10.3969/j.issn.1000-6532.2022.01.027 |
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