| 초록 |
In the commercial SNG (Synthetic Natural Gas) synthesis process based on coal gasification, the methane selectivity is about 98%. Methane, the main components of SNG, has a calorific value of 8,107 kcal/Nm3, which is below domestic pipe network standards (10,500 kcal/Nm3). In this study, we aimed to develop a catalyst for production of high calorific value SNG based on coal gasification. We designed the reaction based on Fisher-Tropsch process which product has alkane of less than 5 carbon chain. Experiments were conducted in a fixed bed reactor and the promoter characteristics of Mn, Mo and Zr were determined on Cobalt base catalyst at 300 oC, 10 bar, CO : H2 = 1 : 3.1 and GHSV = 5000 h-1. As a result, Co10/SiO2 catalyst showed 95% carbon monoxide conversion, 57% methane selectivity and 20.7% C2-C4 selectivity. |
