| 학회 |
한국화학공학회 |
| 학술대회 |
2010년 봄 (04/22 ~ 04/23, 대구 EXCO) |
| 권호 |
16권 1호, p.973 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Characteristics of SNG Synthesis over Commercial Catalysts |
| 초록 |
The synthesis of SNG (synthetic natural gas, CH4) from syngas has been widely studied in 1970’s.Recently, the coal gasification to produce syngas is of interest because of coal reserves and economic feasibility.Therefore, LNG can be substituted by SNG since they have similar quality, and several projects for the SNG plants are conducting in the world.In the present study, we examined the characteristics of SNG synthesis over commercial catalysts.The thermodynamic analysis has also been performed to understand the characteristics.The conversion of CO was decreased at high temperature above 350 oC due to the thermodynamic barrier.Among the catalysts examined, we found the best catalyst which has 45 and 5 wt.% of Ni and Mg, respectively, on Al2O3.The effect of reaction conditions including reactor space velocity, temperature, pressure and H2/CO ratio has also been examined to understand the SNG synthesis process.When the pressure was set at 20 bar, the CO conversion and the CH4 yield showed the highest results compared to those at atmospheric pressure.The optimum H2/CO ratio to maximize the CH4 production was 3, which were compared with the thermodynamic estimation. |
| 저자 |
백준현1, 오명석1, 이기만2, 이신구1, 고동준1, 임효준3, 변창대3
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| 소속 |
1포항산업과학(연), 2포항공과대, 3POSCO |
| 키워드 |
SNG; Catalyst; Coal gasification
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| E-Mail |
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| 원문파일 |
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