Meng Shijun, Wang Aiguo, He Peng, Song Hua
Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada.
J Phys Chem Lett. 2020 May 21;11(10):3877-3881. doi: 10.1021/acs.jpclett.0c00934. Epub 2020 May 4.
We report a novel nonthermal plasma-assisted photocatalytic approach that could efficiently convert the main components of natural gas, methane and propane, into high-quality gasoline chemicals abundant with C-C branched-chain paraffins at low temperature and atmospheric pressure. The conversions of methane and propane can reach up to 15.0% and 48.6%, respectively. A 58.4 C% yield of gasoline products with limited coke deposition (6.3 C%) can be achieved via the combination of plasma with photocatalysis. Isotope labeling experiments show that methane prefers to be incorporated into 1-C or 2-C of the formed alkanes as a terminal group. Our work demonstrates an industrially promising strategy for the cost-efficient utilization of natural gas.
我们报道了一种新型的非热等离子体辅助光催化方法，该方法能够在低温和常压下将天然气的主要成分甲烷和丙烷高效转化为富含碳 - 碳支链烷烃的优质汽油化学品。甲烷和丙烷的转化率分别可达15.0%和48.6%。通过等离子体与光催化相结合，可实现汽油产品58.4 C%的产率，且焦炭沉积有限（6.3 C%）。同位素标记实验表明，甲烷更倾向于作为端基并入所形成烷烃的1 - C或2 - C位置。我们的工作展示了一种在工业上具有前景的天然气低成本高效利用策略。
