Micelle-derived catalysts for extended Schulz-Flory. [Quarterly report], January 1, 1986--March 31, 1986
The objective of this program is to develop a synthesis gas conversion catalyst selective to gasoline or diesel range fuel via application of a micelle technique for preparing specific site supported ruthenium particles. The current emphasis is to investigate hydrocarbon cutoff principle and to apply it for developing selective catalysts. During this quarter, micelle technique was further improved and 1 ruthenium particle:l reverse micelle limit was approached by careful control of catalyst synthesis conditions. Accordingly, it became possible to synthesize supported particles that closely meet the size and composition targets originally set. This improved technique was applied to synthesis of chemically modified ruthenium catalysts. Some of the chemically modified ruthenium catalysts will be evaluated later in the program. We previously reported that 40--60 {Angstrom} ruthenium particles prepared on {gamma}-alumina do not result in hydrocarbon cutoff. We could not determine then whether smaller ruthenium particles result in hydrocarbon cutoff because these particles agglomerated via ruthenium carbonyl formation during the course of a 6--10 day test. We have recently evaluated a catalyst with 20--40 {Angstrom} ruthenium particles prepared on {gamma}-alumina by carefully analyzing products initially made during the test prior to substantial ruthenium agglomeration. We concluded that cutoff is not effected by 20--40 {Angstrom} ruthenium particles prepared on {gamma}-alumina. In the future, we are going to investigate the occurrence of cutoff principle with <20 {Angstrom} ruthenium particles prepared on {gamma}-alumina. We are also going to attempt to determine whether some of the literature reports of hydrocarbon cutoff with small ruthenium particles can be attributed to the chain length selective nature of zeolitic supports that were used in those experiments.
- Research Organization:
- Signal Research Center, Inc., Des Plaines, IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC22-84PC70023
- OSTI ID:
- 10190418
- Report Number(s):
- DOE/PC/70023-T7; ON: DE93003296
- Resource Relation:
- Other Information: PBD: [1986]
- Country of Publication:
- United States
- Language:
- English
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