乙炔氢氯化反应是煤基氯乙烯合成的重要技术，但一直受汞触媒催化剂毒性问题的困扰。利用竹子下脚料合成的氮掺杂多孔纳米碳催化剂（N@BC），无需添加任何金属元素，可以高效催化乙炔氢氯化合成氯乙烯。研究结果表明，反应温度为200℃，乙炔转化率高达95%，氯乙烯选择性大于98%，反应50 h乙炔转化率保持在90%以上。利用生物质废弃资源合成多孔氮掺杂碳材料的方法，为乙炔氢氯化反应生产氯乙烯的无汞化开辟了一条新思路。

Acetylene hydrochlorination is an important technology for the commercial production of coal-based vinyl chloride,however it is plagued by the toxicity of mercury chloride catalyst.Therefore,extensive efforts have made to develop alternative catalysts with various metals,including noble metals and base metals.Here a porous nitrogen-doped carbons (N@BC) derived from the renewable bamboo leftovers is used to activate acetylene directly for hydrochlorination in the absence of additional metal species.N@BC catalyst delivers stable activity during a 50 hour test with acetylene conversion reaching 90%-95% and vinyl chloride selectivity over 98% at 200℃.This study develops a new nitrogen-doped catalyst and corresponding preparation technology,which provides a new idea for non-mercury catalyst development in the vinyl chloride industry.

刘悦(1993-),女,硕士研究生,研究方向为氮掺杂碳催化剂在氯乙烯合成中的应用,m13167128261＿1@163.com