Mercury-free nitrogen-doped activated carbon catalyst: an efficient catalyst for the catalytic coupling reaction of acetylene and ethylene dichloride to synthesize the vinyl chloride monomer,Reaction Chemistry & Engineering

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Mercury-free nitrogen-doped activated carbon catalyst: an efficient catalyst for the catalytic coupling reaction of acetylene and ethylene dichloride to synthesize the vinyl chloride monomer
Reaction Chemistry & Engineering ( IF 3.4 ) Pub Date : 2018-01-11 00:00:00 , DOI: 10.1039/c7re00201g
Zhaobing Shen _{1,

2,

3,

4} , Hong Zhao _{1,

2,

3,

4} , Yue Liu _{1,

2,

3,

4} , Zeyuan Kan _{1,

2,

3,

4} , Ping Xing _{4,

5,

6,

7} , Jinguang Zhong _{1,

2,

3,

4} , Biao Jiang _{1,

2,

3,

4,

5}

Affiliation

The global “Minamata Convention on Mercury” came into effect in 2017 exerting huge environmental pressure on acetylene-based polyvinyl chloride (PVC) processes. Research and development of mercury-free catalytic synthesis technologies for the entire PVC industry and even the sustainable development of the chlor-alkali industry are of great significance. Here, we report the catalyzed coupling reaction of acetylene and ethylene dichloride to synthesize vinyl chloride over a mercury-free, nitrogen-doped activated carbon catalyst (N@AC). The catalyst delivered stable performance with an ethylene dichloride conversion over 95%, acetylene conversion at ∼90%, and selectivity for vinyl chloride over 98% at 260 °C. Both X-ray photoelectron spectroscopy data and catalytic activity of the catalysts revealed pyridinic N to be the active site. The results of this study show that the catalytic coupling reaction of acetylene and ethylene dichloride to synthesize vinyl chloride over a N@AC catalyst has a very attractive prospect in the PVC industry.

中文翻译：

无汞氮掺杂活性炭催化剂：乙炔与二氯乙烷催化偶合反应合成氯乙烯单体的有效催化剂

全球性的《水am汞公约》于2017年生效，对基于乙炔的聚氯乙烯（PVC）工艺施加了巨大的环境压力。研究和开发整个PVC行业的无汞催化合成技术，乃至氯碱行业的可持续发展都具有重要意义。在这里，我们报告了乙炔和二氯化乙烯在无汞，氮掺杂的活性炭催化剂（N @ AC）上催化合成氯乙烯的催化偶联反应。该催化剂具有稳定的性能，其中二氯乙烷的转化率超过95％，乙炔的转化率约为90％，在260°C时氯乙烯的选择性超过98％。X射线光电子能谱数据和催化剂的催化活性均显示吡啶N是活性位点。

更新日期：2018-01-11

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