| 학회 |
한국화학공학회 |
| 학술대회 |
2013년 가을 (10/23 ~ 10/25, 대구 EXCO) |
| 권호 |
19권 2호, p.2059 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Studies on the Steam CO2 Reforming of Methane over Modified Hydrotalcite based Catalysts |
| 초록 |
The reforming process is commonly used in the industry for the production of synthesis gas and H2. Especially steam carbon dioxide reforming(SCR) of methane is good for adjusting proper H2/CO ratio of 2 to apply GTL process. In SCR reaction, Ni-based catalysts are usually used because of their acceptably high activity and significantly lower cost in comparison with alternative precious metal-based catalyst. However nickel based catalysts are susceptible to deactivation from the deposition of carbon. In this study, Hydrotalcite-like catalysts promoted with Sr2+, Ca2+ and Ce2+ were investigated to control the carbon formation. The catalysts were prepared by co-precipitaion method and characterized by various analyzer such as N2 physorption, TPR, TPD, XRD, TGA and SEM/EDX techniques. The catalytic performance for SCR was investigated in a fixed-bed reactor with molar ratio of CH4:CO2:H2O=1:1:2, reaction temperature of 700 oC and reaction pressure of 1 bar. It was found that the Ca0.5Ni1/MgAl catalyst has a moderate basic site and shows higher conversions both CH4 and CO2, and resistance to carbon deposition than the other catalysts. |
| 저자 |
김나영1, 박미경1, 김승훈2, 양은혁3, 이윤주1, 김현진4, 문동주3
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| 소속 |
1KIST, 2KIST / 고려대, 3KIST / UST, 4DSME / KIST |
| 키워드 |
Hydrotalcite; GTL; SCR; Combined Reforming
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| E-Mail |
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| 원문파일 |
초록 보기 |
