| 학회 |
한국화학공학회 |
| 학술대회 |
2014년 가을 (10/22 ~ 10/24, 대전 DCC) |
| 권호 |
20권 2호, p.2088 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Coopertive Effects of Secondary Mesoporosity and Spatial Distribution of Acid Site in Pt/SAPO-11 on n-Dodecane Hydroisomerization Selectivity |
| 초록 |
The importance of hydroisomerization of long-chain n-paraffins to their branched isomers is increasing in the petroleum industry, since it is a means of improving the cold-flow properties of middle distillate fuels and lube base oils. In this work, we investigated the effects of secondary mesoporosity and spatial distributions of acid sites in SAPO-11 on the hydroisomerization yields. Mesoporous SAPO-11 was generated by using organosilane-templating and carbon-templating. The former method produced mesoporous SAPO-11 samples with a large amount of external acid sites, while the latter produced mesoporous samples containing predominantly internal acid sites. Pt/SAPO-11 samples can exhibit ranging maximum iso-dodecane yield from 13 to 84%. The results showed that hydroisomerization selectivity of the catalysts can be enhanced by facilitating the hydrocarbon diffusion via the formation of mesopores while suppressing the formation of external acid sites that can non-selectively catalyze cracking reactions. |
| 저자 |
김명엽, 최민기
|
| 소속 |
KAIST |
| 키워드 |
Hydroisomerization; SAPO-11; Mesopore; External acid
|
| E-Mail |
|
| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
