| 학회 |
한국화학공학회 |
| 학술대회 |
2013년 가을 (10/23 ~ 10/25, 대구 EXCO) |
| 권호 |
19권 2호, p.2134 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Evaluation of Equilibrium Displacement in the in situ Methylation of Toluene with Syngas over Bifunctional Catalysts |
| 초록 |
Many catalytic systems are controlled by equilibrium conversions and thus yield limited per-pass performances. The equilibrium limitation can be partially circumvented by accelerating the desired reaction via physical separation methods, reaction system and catalyst designs etc. Methanol synthesis from syngas and para-xylene selectivity in toluene methylation are typical examples of equilibrium controlled reactions. Herein, the direct conversion of syngas (CO+H2) and toluene into para-xylene was studied over bifunctional catalysts under a moderate total pressure of 460 psig. In the in situ methylation of toluene with syngas, a high per-pass CO conversion beyond the equilibrium limitation inherent in methanol synthesis was observed. The equilibrium displacement achieved in the in situ methylation over bifunctional catalyst was further elucidated by monofunctional model reactions (benzene and toluene methylation with methanol over HZSM-5). By employing modified HZSM-5 in the in situ methylation, the para-xylene selectivity exceeding the equilibrium composition was also achieved. |
| 저자 |
이지혜1, 최예슬1, 김동욱1, 이슬아1, 이창규2, 김태진2, 이정규1
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| 소속 |
1동아대, 2SK이노베이션 |
| 키워드 |
Toluene methylation; Syngas; HZSM-5; Equilibrium conversion
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| E-Mail |
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| 원문파일 |
초록 보기 |
