Effect of HBr formation on mercury oxidation via CaBr2 addition to coal during combustion
文献类型：期刊论文
| 作者 | Yang, Yang1,2; Xu, Wenqing1; Wu, Yinghong1,2; Xiong, Jin1,2; Zhu, Tingyu1; Zhou, Xuan1; Tong, Li1,2 |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2016 |
| 卷号 | 6期号:64页码:59009-59015 |
| ISSN号 | 2046-2069 |
| 英文摘要 | Adding CaBr2 to coal to enhance elemental mercury (Hg0) oxidation during combustion has been an effective mercury control technology, but the added CaBr2 may increase levels of noxious Br-2 or HBr gases in flue gas. Temperature-programmed decomposition (TPD) experiments were conducted to verify the effect of CaBr2 addition on Hg-0 oxidation. The results indicated that the amount of Hg-0 released initially decreased with increasing amounts of CaBr2 additive and then held steady. The optimal amount of additive was 200 mu g g(-1). CaBr2 addition effectively oxidized Hg-0 released at relatively low temperatures only. The generation of HBr was confirmed by mass spectrometry. The formation of HBr occurred over a temperature range of 250 degrees C to 400 degrees C, and the HBr concentration first increased and then remained stable as levels of CaBr2 additive were increased in coal. The maximum concentration of HBr was 18 ppm and corresponded to 200 mu g g(-1) CaBr2. Further analysis indicated a strong, negative linear correlation between the amount of Hg-0 released and the HBr concentration in flue gas. Based on these findings and previous studies, the possible mechanism of oxidation of Hg-0 by CaBr2 was analyzed. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Multidisciplinary |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | FIRED POWER-PLANTS ; CALCIUM-CHLORIDE ADDITION ; FLUE-GAS ; ELEMENTAL MERCURY ; EMISSION CONTROL ; BITUMINOUS COAL ; CONTROL DEVICES ; FLY ASHES ; CHINA ; BROMINE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000379350100019 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/21249]  |
| 专题 | 过程工程研究所_湿法冶金清洁生产技术国家工程实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Res Ctr Proc Pollut Control, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Yang,Xu, Wenqing,Wu, Yinghong,et al. Effect of HBr formation on mercury oxidation via CaBr2 addition to coal during combustion[J]. RSC ADVANCES,2016,6(64):59009-59015. |
| APA | Yang, Yang.,Xu, Wenqing.,Wu, Yinghong.,Xiong, Jin.,Zhu, Tingyu.,...&Tong, Li.(2016).Effect of HBr formation on mercury oxidation via CaBr2 addition to coal during combustion.RSC ADVANCES,6(64),59009-59015. |
| MLA | Yang, Yang,et al."Effect of HBr formation on mercury oxidation via CaBr2 addition to coal during combustion".RSC ADVANCES 6.64(2016):59009-59015. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。