|
|||||
|
|
Identifying Different Types of Catalysts for CO2 Reduction by Ethane through Dry Reforming and Oxidative Dehydrogenation |
|
| Authors: | Dr Marc D Porosoff Myat Noe Zin Myint Dr Shyam Kattel Zhenhua Xie Elaine Gomez Dr Ping Liu Prof?Dr Jingguang G Chen |
| Institution: | 1. Department of Chemical Engineering, Columbia University, 500 W. 120th St., New York, NY 10027 (USA);2. Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy St., Newark, DE 19716 (USA);3. Chemistry Department, Brookhaven National Laboratory, 2 Center St., Upton, NY 11973 (USA) |
| Abstract: | The recent shale gas boom combined with the requirement to reduce atmospheric CO2 have created an opportunity for using both raw materials (shale gas and CO2) in a single process. Shale gas is primarily made up of methane, but ethane comprises about 10 % and reserves are underutilized. Two routes have been investigated by combining ethane decomposition with CO2 reduction to produce products of higher value. The first reaction is ethane dry reforming which produces synthesis gas (CO+H2). The second route is oxidative dehydrogenation which produces ethylene using CO2 as a soft oxidant. The results of this study indicate that the Pt/CeO2 catalyst shows promise for the production of synthesis gas, while Mo2C‐based materials preserve the C? C bond of ethane to produce ethylene. These findings are supported by density functional theory (DFT) calculations and X‐ray absorption near‐edge spectroscopy (XANES) characterization of the catalysts under in situ reaction conditions. |
| Keywords: | CO2 ethane heterogeneous catalysis surface chemistry X‐ray absorption |