| 학회 |
한국화학공학회 |
| 학술대회 |
2003년 봄 (04/25 ~ 04/26, 순천대학교) |
| 권호 |
9권 1호, p.173 |
| 발표분야 |
공업화학 |
| 제목 |
초임계 이산화탄소와 메탄올을 이용한 Dimethyl Carbonate 합성에 대한 염기촉매의 영향 |
| 초록 |
The synthesis of dimethyl carbonate(DMC) from methanol and supercritical carbon dioxide over various basic catalysts was studied in the batch reactor. Compounds of group Ι elements(Li, Na, K) with/without γ-Al2O3 support were used as basic catalysts. The promoter and dehydrating agent were also used to enhance the yield of DMC. By-products such as dimethyl ether(DME) and C1-C2 hydrocarbons as well as DMC were formed in this reaction system. The yield of DMC with different alkali mtal catalysts ranks in the following oder: K>Na>Li. The DMC synthesis depends on CO32- ions rather than OH- ions. The yield of DMC over unsupported catalysts was higher than that over alumina supported catalysts. The maximum DMC yield reached up to 12mole% in the presence of K2CO3(catalyst), CH3I(promoter) and 2,2-dimethoxypropane(dehydrating agent) at 130-140 ℃, 200bar. |
| 저자 |
홍승태1, 김재덕1, 임종성1, 이윤우1, 송은석1, 박형상2
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| 소속 |
1한국과학기술(연), 2서강대 |
| 키워드 |
초임계 이산화탄소; Dimethyl Carbonate; 염기촉매; 메탄올
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| E-Mail |
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| 원문파일 |
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