Kinetics Research on In-situ Rapid Dechlorination of 1,4-dichlorobenzene by Microwave-assisted Raney Ni- AI Alloy Catalyst

• 作者: Baoying Lv Hong Xie Li Tang Zhaoyu Mo Zhiming Chen
• 来源期刊: 气象与环境研究：英文版
• 学科: 工学
• 关键词: 合金催化剂 反应动力学 微波辅助 脱氯反应 雷尼镍 二氯苯 原位 反应速率常数
• 年，卷（期）: 2013,（9）
• 页码范围: 39-42
• 页数: 4页
• 分类号: TQ116.2

摘要

[Objective]The research aimed to study rapid dechlorination kinetics of 1,4-dichlorobenzene(1,4-DCB)by microwave-assisted Raney Ni-Al alloy catalyst.[Method]Microwave-assisted Raney Ni-Al alloy catalyst was used for dechlorination of chlorobenzene(CB)and 1,4-DCB to analyze dechlorination kinetics of 1,4-DCB.[Result]Reductive dechlorination reaction of 1,4-DCB by microwave-assisted Raney Ni-Al alloy catalyst was in accordance of the two-order reaction kinetics.Reaction rate constants of 1,4-DCB dechlorination at 35 and 50℃were 0.037 6 and0.151 mol/(L·min),and the activation energy was 76.66 kJ/mol.By microwave-assisted Raney Ni-Al alloy catalyst,dechlorination rate of 1,4-DCB reached 90%at 10 min and 35℃.Moreover,two chlorine atoms were removed simultaneously,reaching the target of efficient dechlorination.[Conclusion]Dechlorination of polychlorinated organic compounds by microwave-assisted Raney Ni-Al alloy catalyst obtained good effect.