Improved catalysts for liquid hydrocarbon fuels from syngas. Sixth quarterly technical progress report, January-March 1986

Technical Report · Wed Jan 01 00:00:00 EST 1986

OSTI ID:5596296

The catalyst testing for this quarter was focused on further understanding and developing the X/sub 11/ promoted cobalt oxide component intimately contacted with the Molecular Sieve TC-123. Furthermore, the addition of new promoters, the addition of a water gas shift component, and the substitution of TC-123 with a new Molecular Sieve TC-121 and with ..gamma..-alumina was also studied. The use of the additional promoter X/sub 13/ was found to increase the water gas shift activity of the X/sub 11/ promoted Co/TC-123 catalyst. While the catalyst demonstrated excellent stability at 240C, it did, however, show considerable deactivation at 260C. The use of the additive X/sub 9/, geared towards improving the Co/S/sub 11//TC-123 catalyst's stability at higher temperatures, appeared partially successful. The catalyst demonstrated high activity (about 75 percent CO + H/sub 2/ conversion at 260C, 500 psig, and a 1.5:1 H/sub 2/:CO) with a deactivation rate of only about one percentage point every 150 hours. The selectivity, however, remained excellent with about 9 percent CH/sub 4/ being produced throughout the 800 hour test period. Attempts to improve the water gas shift activity of the system by the simple addition of a separate water gas shift catalyst (K/Ni/Mo-..gamma..-alumina) were unsuccessful. Similarly, the testing of the new Molecular Sieve TC-121 demonstrated inferior performance in both activity and selectivity when compared with the analogous TC-123 supported catalyst. The preliminary test results for these catalysts are summarized in Appendix A.

• Research Organization: Union Carbide Corp., Tarrytown, NY (USA). Molecular Sieve Dept.
• DOE Contract Number: AC22-84PC70028
• OSTI ID: 5596296
• Report Number(s): DOE/PC/70028-T7; ON: DE86014659
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
CATALYSTS
CHEMICAL PREPARATION
PERFORMANCE TESTING
PROMOTERS
COBALT OXIDES
CATALYTIC EFFECTS
FISCHER-TROPSCH SYNTHESIS
EXPERIMENTAL DATA
HIGH TEMPERATURE
HYDROCARBONS
MEDIUM PRESSURE
MOLECULAR SIEVES
RESEARCH PROGRAMS
SHIFT PROCESSES
SPECIFICITY
SYNTHESIS
TIME DEPENDENCE
ADSORBENTS
CHALCOGENIDES
CHEMICAL REACTIONS
COBALT COMPOUNDS
DATA
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
TESTING
TRANSITION ELEMENT COMPOUNDS
090121* - Hydrocarbon Fuels- Chemical Synthesis- (1976-1989)