甲烷转化为乙烯和乙炔能够直接从天然气中生成一系列产品,但是通常CH4的活化和转化需要高温高压反应条件,而且如何将没有反应的CH4与C2+分离非常困难。
有鉴于此,曼彻斯特大学杨四海、Martin Schröder等报道在温和反应条件(25 ℃,1 atm)使用plasma进行流动相催化甲烷转化,使用MFM-300(Fe)作为催化剂,直接将CH4转化为C2H4和C2H2。C2H4和C2H2的选择性达到96 %,产率达到334 μmol g-1 h-1。
参考文献
Yujie Ma, Xue Han, Shaojun Xu, Zhe Li, Wanpeng Lu, Bing An, Daniel Lee, Sarayute Chansai, Alena M. Sheveleva, Zi Wang, Yinlin Chen, Jiangnan Li, Weiyao Li, Rongsheng Cai, Ivan da Silva, Yongqiang Cheng, Luke L. Daemen, Floriana Tuna, Eric J. L. McInnes, Lewis Hughes, Pascal Manuel, Anibal J. Ramirez-Cuesta, Sarah J. Haigh, Christopher Hardacre, Martin Schröder*, and Sihai Yang*, Direct Conversion of Methane to Ethylene and Acetylene over an Iron-Based Metal–Organic Framework, J. Am. Chem. Soc. 2023
DOI: 10.1021/jacs.3c03935
https://pubs.acs.org/doi/10.1021/jacs.3c03935