Synthesis of octane enhancers during slurry-phase Fischer-Tropsch. Quarterly technical progress report No. 8, July 1, 1992--September 30, 1992
The initial work on the synthesis of MTBE during CO hydrogenation shows that MTBE cannot be formed directly on metal sites and likely requires the presence of an acid site. However, MTBE can be made successfully when an acid site, provided by the zeolites, is present in the vicinity of the methanol-synthesis metal sites. When i-butylene was added during CO hydrogenation over a composite catalyst consisting of Li-Pd/SiO{sub 2} and a hydrogen-zeolite, MTBE was formed in measurable amounts. The major by-product of this reaction scheme was isobutane and the dimer of i-butylene. In general, ZSM-5 was found to be superior to LZ210-12 HY zeolite. CO hydrogenation over a bifunctional PdNaY catalyst shows that branched hydrocarbons as well as MEOH can be made successfully at the same time. Addition of i-butylene over this catalyst only (i.e. without other zeolite) results in the formation of trace amounts of MTBE.
- Research Organization:
- Altamira Instruments, Inc., Pittsburgh, PA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC22-90PC90047
- OSTI ID:
- 10192418
- Report Number(s):
- DOE/PC/90047-T8; ON: DE94002178; BR: AA2520000
- Resource Relation:
- Other Information: PBD: 7 Jul 1993
- Country of Publication:
- United States
- Language:
- English
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