Chemical speciation and combustion behavior of chromium (Cr) and vanadium (V) in coals
文献类型：期刊论文
| 作者 | Qi, Cuicui2; Sun, Ruoyu2; Cheng, Siwei2; Liu, Guijian1,2; Liu, Yuan1,2 |
| 刊名 | FUEL
 |
| 出版日期 | 2016-11-15 |
| 卷号 | 184期号:2016页码:42-49 |
| 关键词 | Chemical Speciation Chromium Vanadium Coal Rank |
| DOI | 10.1016/j.fuel.2016.07.003 |
| 文献子类 | Article |
| 英文摘要 | Twenty-one coal samples of different coal ranks and one stone coal sample were collected from nine provinces in China, with an aim of studying the chemical speciation and combustion behavior of Cr and V in coals. The concentrations of Cr and V in studied coals range from 0.12 to 176 mu g/g, and from 2.74 to 61.5 mu g/g, respectively. Six operationally defined modes of occurrence of Cr and V are extracted from the coal using the sequential extraction procedure: water leachable, ion exchangeable, organic matter bound, carbonate bound, silicate bound and sulfide bound. Among these six modes, silicate bound Cr and V have the highest fractions. With the increase of coal rank, organic matter bound Cr and V show decline trends. We found that Cr and V are highly correlated in the coal samples, which may relate to their leading existence as silicate bound and organic bound forms. Both Cr and V exhibit medium to low volatility, due to their high association with silicate. The volatilization ratios of Cr and V in coals decrease with the advance of coal rank. (C) 2016 Elsevier Ltd. All rights reserved. |
| WOS关键词 | HAZARDOUS TRACE-ELEMENTS ; LATE PERMIAN COALS ; SHENBEI COALFIELD ; CHINA ; LIGNITE ; MODES ; CARCINOGENICITY ; GEOCHEMISTRY ; TOXICITY ; PROVINCE |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000381619800006 |
| 源URL | [http://ir.ieecas.cn/handle/361006/5665]  |
| 专题 | 地球环境研究所_黄土与第四纪地质国家重点实验室（2010~） |
| 作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China 2.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qi, Cuicui,Sun, Ruoyu,Cheng, Siwei,et al. Chemical speciation and combustion behavior of chromium (Cr) and vanadium (V) in coals[J]. FUEL,2016,184(2016):42-49. |
| APA | Qi, Cuicui,Sun, Ruoyu,Cheng, Siwei,Liu, Guijian,&Liu, Yuan.(2016).Chemical speciation and combustion behavior of chromium (Cr) and vanadium (V) in coals.FUEL,184(2016),42-49. |
| MLA | Qi, Cuicui,et al."Chemical speciation and combustion behavior of chromium (Cr) and vanadium (V) in coals".FUEL 184.2016(2016):42-49. |
入库方式： OAI收割
来源：地球环境研究所
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。