Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland.
Angew Chem Int Ed Engl. 2017 Oct 23;56(44):13670-13674. doi: 10.1002/anie.201706624. Epub 2017 Aug 23.
Ethylene and propylene are the key building blocks of the chemical industry, but current processes are unable to close the growing gap between demand and manufacture. Reported herein is an exceptional europium oxychloride (EuOCl) catalyst for the selective (≥95 %) production of light olefins from ethane and propane by oxychlorination chemistry, thus achieving yields of ethylene (90 %) and propylene (40 %) unparalleled by any existing olefin production technology. Moreover, EuOCl is able to process mixtures of methane, ethane, and propane to produce the olefins, thereby reducing separation costs of the alkanes in natural gas. Finally, the EuOCl catalyst was supported on suitable carriers and evaluated in extrudate form, and preserves performance for >150 h under realistic process conditions.
乙烯和丙烯是化学工业的关键基础原料，但当前的生产工艺无法满足需求与供应之间日益扩大的差距。本文报道了一种特殊的氧化氯铕（EuOCl）催化剂，可通过氧化氯化化学选择性（≥95%）地将乙烷和丙烷转化为轻烯烃，从而获得前所未有的乙烯（90%）和丙烯（40%）产率，任何现有烯烃生产技术都无法比拟。此外，EuOCl 能够处理甲烷、乙烷和丙烷的混合物来生产烯烃，从而降低天然气中烷烃的分离成本。最后，EuOCl 催化剂被负载在合适的载体上，并以挤出物的形式进行评估，在实际工艺条件下保持>150 小时的性能。
