Conversion of carbon dioxide with non-equilibrium electronegative ions of iodine

GUO Li; XIANG Xiaofeng; WU Xing; MA Xiaoxun; XIA Yashen

doi:10.3969/j.issn.0438-1157.2012.10.041

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Conversion of carbon dioxide with non-equilibrium electronegative ions of iodine

更新时间：2025-12-10

- Conversion of carbon dioxide with non-equilibrium electronegative ions of iodine
- CIESC Journal Issue 10, Pages: 3297-3303(2012)
- 作者机构：
  
  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,波士顿,美国,02466
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2012.10.041
  CLC： 701
- Online First：05 October 2012，
  
  Published：05 October 2012
- 稿件说明：
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GUO Li, XIANG Xiaofeng, WU Xing, et al. Conversion of carbon dioxide with non-equilibrium electronegative ions of iodine[J]. CIESC Journal, 2012, (10): 3297-3303.
DOI：

GUO Li, XIANG Xiaofeng, WU Xing, et al. Conversion of carbon dioxide with non-equilibrium electronegative ions of iodine[J]. CIESC Journal, 2012, (10): 3297-3303. DOI： 10.3969/j.issn.0438-1157.2012.10.041.

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。

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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