World Class University (WCU) Program of Chemical Convergence for Energy and Environment, Institute of Chemical Processes, School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-741, Republic of Korea.
Department Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, Republic of Korea.
ChemSusChem. 2017 Sep 22;10(18):3671-3678. doi: 10.1002/cssc.201701283. Epub 2017 Sep 12.
The conversion of CO into useful chemicals is an attractive method to reduce greenhouse gas emissions and to produce sustainable chemicals. However, the thermodynamic stability of CO means that a lot of energy is required for its conversion into chemicals. Here, we suggest a new catalytic system with an alternative heating system that allows minimal energy consumption during CO conversion. In this system, electrical energy is transferred as heat energy to the carbon-supported metal catalyst. Fast ramping rates allow high operating temperatures (T =250 °C) to be reached within 5 min, which leads to an 80-fold decrease of energy consumption in methane reforming using CO (DRM). In addition, the consumed energy normalized by time during the DRM reaction in this current-assisted catalysis is sixfold lower (11.0 kJ min ) than that in conventional heating systems (68.4 kJ min ).
将 CO 转化为有用的化学品是一种很有吸引力的方法，可以减少温室气体排放并生产可持续的化学品。然而，CO 的热力学稳定性意味着将其转化为化学品需要大量的能量。在这里，我们提出了一种新的催化体系，采用替代加热系统，在 CO 转化过程中消耗的能量最小。在该系统中，电能被转化为热能传递给负载在碳上的金属催化剂。快速的升温速率可以在 5 分钟内达到 250°C 的操作温度，这导致 CO 甲烷重整 (DRM) 的能量消耗降低 80 倍。此外，在电流辅助催化作用下进行 DRM 反应时，单位时间内消耗的能量（11.0 kJ min）比传统加热系统（68.4 kJ min）低六倍。
