| 학회 |
한국화학공학회 |
| 학술대회 |
2010년 봄 (04/22 ~ 04/23, 대구 EXCO) |
| 권호 |
16권 1호, p.896 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Partial oxidation ofn-hexadecane over ceria-promoted catalysts derived from Ni-substituted hydrotalcite with variation of O/C ratio |
| 초록 |
For the production of hydrogen, partial oxidation of n-hexadecane(HD) which is a representative component of diesel was carried out in a fixed-bed reactor by employing ceria-promoted Ni-substituted hydrotalcite-derived catalysts (CexNi3Mg3Al2(OH)16(CO3); x=0.15~0.6). The volumetric feed rate of HD vapor was fixed to 1.5 cm3(STP)/min, and that of oxygen was varied from 12 to 18 cm3(STP)/min (the O/C ratio= 1.0~1.5). The objectives of this study wereto findthe optimum ceria contents and the O/C feed ratio.HD was fully converted above 973 K with no condensable products. C3 and higher hydrocarbons formed were negligible. The O/C ratio of 1.25 in the feed was better than the ratio of 1.0 or 1.5. The catalyst with the Ce/Ni ratio of 0.3/3 showed the best H2 yield, ~85% at 1,123 K. When the Ce/Ni ratio was higher than 0.3/3, the H2 yield was slightly decreased. In long-term tests, ceria-promoted catalysts showed good catalytic stability for 30 h. However, when the unpromoted catalyst was used in the test, the H2 yield was slightly decreased for 30 h. |
| 저자 |
윤광우1, 곽정훈1, 정혜흔1, 임태훈2, 남석우2, 홍성안2, 윤기준1
|
| 소속 |
1성균관대, 2KIST |
| 키워드 |
Ceria; Hydrotalcite; n-hexadecane; Nickel catalyst; Patial oxidation
|
| E-Mail |
|
| 원문파일 |
초록 보기 |
