| 非平衡碘负离子转化二氧化碳 |
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| 引用本文： | 郭利,向小凤,伍星,马晓迅,夏亚沈. 非平衡碘负离子转化二氧化碳[J]. 化工学报, 2012, 63(10): 3297-3303. DOI: 10.3969/j.issn.0438-1157.2012.10.041 |
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| 作者姓名： | 郭利 向小凤 伍星 马晓迅 夏亚沈 |
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| 作者单位： | 1. 陕北能源先进化工利用技术教育部工程研究中心, 陕西省洁净煤转化工程技术研究中心, 西北大学化工学院, 陕西 西安 710069;2. HyChar研究所, 美国 波士顿 02466 |
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| 摘 要： | 以直流脉冲负高压电晕放电形式,通过加入电子亲和能较高的碘气,在完全电负性离子体条件下资源化处理CO2。考察了进气流量、高压放电频率和原料摩尔比对CO2转化率的影响。结果表明:70℃时,利用碘负离子成功将CO2还原生成了CI4,其产率随着CO2流量的增加而减少。当进气流量0.06 L·min-1、放电频率9.608 kHz,n(I2)/n(CO2)为2.5时,CO2转化率在碘负离子作用下达到88.71%。另外,对碘负离子和CO2还原反应机理进行了初步探讨。
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| 关 键 词： | CO2 碘负离子 电晕放电 负高压 |
| 收稿时间： | 2012-01-05 |
| 修稿时间： | 2012-04-30 |
Conversion of carbon dioxide with non-equilibrium electronegative ions of iodine |
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| GUO Li , XIANG Xiaofeng , WU Xing , MA Xiaoxun , XIA Yashen. Conversion of carbon dioxide with non-equilibrium electronegative ions of iodine[J]. Journal of Chemical Industry and Engineering(China), 2012, 63(10): 3297-3303. DOI: 10.3969/j.issn.0438-1157.2012.10.041 |
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| Authors: | GUO Li XIANG Xiaofeng WU Xing MA Xiaoxun XIA Yashen |
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| Affiliation: | 1. School of Chemical Engineering, Northwest University, Chemical Engineering Research Center of the Ministry of Education for Advanced Use Technology of Shanbei Energy, Shaanxi Research Center of Engineering Technology for Clean Coal Conversion, Xi'an 710069, Shaanxi, China;2. HyChar Energy, LLC, Newton, MA 02466, USA |
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| Abstract: | Reducing process of carbon dioxide with electronegative ions of iodine,by DC-negative high voltage corona discharge,was investigated.The effects of gas flow,discharge frequencies and molar ratios of the iodine vapor to carbon dioxide on conversions of carbon dioxide were also examined.The results show that tetraiodomethane was synthesized successfully by electronegative ions of iodine at 70℃ and its yield decreases with increasing flow rates of CO2. When the gas flow rate was 0.06 L·min-1,the discharge frequency 9.608 kHz and molar ratio of I2/CO2 2.5,the conversion of CO2 with electronegative ions of iodine reached 88.71%.Reducing reaction mechanism of electronegative ions of iodine and CO2 is also discussed. |
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| Keywords: | carbon dioxide electronegative ions of iodine corona discharge negative high voltage |
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