当前位置: X-MOL 学术J. Taiwan Inst. Chem. E. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Nitrogen-modified metal-free carbon materials for acetylene hydrochlorination
Journal of the Taiwan Institute of Chemical Engineers ( IF 5.5 ) Pub Date : 2020-08-25 , DOI: 10.1016/j.jtice.2020.08.008
Yusheng Lu , Fangjie Lu , Mingyuan Zhu

In industry, mercury catalysts are mainly used in hydrochlorination of acetylene. However, the sublimation of mercury considerably harms human health and the environment. Therefore, the development of green catalysts is particularly demanding to eliminate the negative effects of such toxic catalysts. Based on this, we used a green, low-cost carrageenan as raw material. A nitrogen-modified carbon material was prepared by nitrogen modification using urea. Based on the reaction conditions of the catalyst dosage = 0.75 g, WHSV = 2.22 mL/g/min, temperature = 260°C, the conversion of the nitrogen-modified catalyst was 98.7%. Various characterization methods had demonstrated that the nitrogen modification produced a large amount of nitrogen and that the nitrogen element was sufficiently dispersed in the carbon material. In addition, identification of the appropriate annealing temperature greatly improved the adsorption catalytic capacity for acetylene. Therefore, an environmentally friendly non-metallic catalyst was developed, which also providing essential feedback for future industrial development.



中文翻译:

氮改性乙炔盐酸盐的无金属碳材料

在工业中,汞催化剂主要用于乙炔的氢氯化反应中。但是,汞的升华极大地损害了人类健康和环境。因此,特别需要开发绿色催化剂以消除这种有毒催化剂的负面影响。基于此,我们使用了绿色的低成本角叉菜胶作为原料。通过使用尿素的氮改性来制备氮改性的碳材料。基于催化剂用量= 0.75 g,WHSV = 2.22 mL / g / min,温度= 260的反应条件℃,氮改性催化剂的转化率为98.7%。各种表征方法已经证明,氮改性产生大量的氮,并且氮元素充分分散在碳材料中。此外,确定合适的退火温度大大提高了乙炔的吸附催化能力。因此,开发了一种环保的非金属催化剂,它也为将来的工业发展提供了重要的反馈。

更新日期:2020-10-04
down
wechat
bug