| 학회 |
한국화학공학회 |
| 학술대회 |
2000년 봄 (04/21 ~ 04/22, 한양대학교) |
| 권호 |
6권 1호, p.57 |
| 발표분야 |
촉매/반응공학 |
| 제목 |
희토류원소(La, Ce, Eu, Nd, Pr)를 전구체로 한 Fe-(La, Ce, Eu, Nd, Pr)/KY 촉매상에서 이산화탄소의 탄화수소 전환반응 연구. |
| 초록 |
The environmental impact of high concentration of CO2 in the atmosphere due to the fast industrialization has been of acute concern to the global community (1). One of the ways to mitigate these problems is to convert CO2, at the generation point, into valuable industrial feedstock such as lower olefins and commercial important high molecular weight hydrocarbons. Iron based catalysts have shown great promise in hydrogenation of CO and CO2. Several authors (2-4) reported that promoters play important role in improving selectivity. Potassium was used commonly as effective promoter, as it facilitates elementary steps RWGS and F-T synthesis (2-4). For improving the selectivity of higher hydrocarbons, rare earth oxides and thoria are also used as promoter in Ni, Co, Fe and Ru based F-T synthesis catalysts (5, 6). Most of the rare earth promoted catalysts showed an increase in selectivity to higher hydrocarbons at the expense of methane formation (5, 6). It is also reported that, the dispersion and redox properties of rare earth oxides are responsible for high activity and selectivity (5, 6). Previously we reported (6) that iron supported on alkali metal ion exchanged Y zeolites showed (especially potassium exchanged Y zeolite) higher activity and selectivity in CO2 hydrogenation.This paper presents catalytic results of CO2 hydrogenation over rare earth oxide promoted iron catalysts supported on KY zeolites.
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| 저자 |
남상성, 이명우, 최명재, 최청송, 이규완.
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| 소속 |
한국화학(연) |
| 키워드 |
CO2 hydrogenation; Hydrocarbons; rare earth oxides; TPR; TPDC.
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| E-Mail |
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| 원문파일 |
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