Slurry phase Fischer-Tropsch synthesis: Cobalt plus a water-gas shift catalyst

Technical Report · Mon Jan 01 04:00:00 EST 1990

DOI:https://doi.org/10.2172/6873535· OSTI ID:6873535

Yates, I C; Satterfield, C N

Experiments on cobalt-catalyzed reactions of light 1-alkenes added to synthesis gas were performed. Data have been collected at 220C, 0.45 to 1.48 MPa and a synthesis gas flow rate between 0.015 and 0.030 Nl/(gcat[center dot]min) with H[sub 2]/CO of 1.45 to 2.25. Ethylene, propene, and butene were added to synthesis gas feed from 0.5 to 1.2 mole% of total feed. For each material balance in which 1-alkenes were added, a material balance was performed at similar process conditions without 1-alkenes added, as base case''. Material balances without added 1-alkenes were also repeated to verify of catalyst selectivity stability. 49 material balances were performed during a single run lasting over 2,500 hours-on-stream. The hydrocarbon data have been completely analyzed; data correlations are still being made. Since C[sub 3]/C[sub 1] ratios by ethene addition, C[sub 4]/C[sub 1] ratios by propene addition, and C[sub 5]/C[sub 1] ratios by 1-butene addition, it appears that 1-alkenes may incorporate into growing chains on the surface of the catalyst. Further evidence for incorporation can be seen by comparing selectivity to n-alcohol one carbon number higher than added 1-alkene. Yield of this n-alcohol increases when alkenes are present. Sensitivity of hydrocarbon distribution to process variables seems to be greater on Co than on Fe catalysts.

• Research Organization: Massachusetts Inst. of Tech., Cambridge, MA (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC22-87PC79816
• OSTI ID: 6873535
• Report Number(s): DOE/PC/79816-9; ON: DE93006473
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
100200* -- Synthetic Fuels-- Production-- (1990-)
ADDITIVES
ALKENES
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
COBALT
DISPERSIONS
DOCUMENT TYPES
ELEMENTS
FISCHER-TROPSCH SYNTHESIS
FLUIDS
GASES
HYDROCARBONS
MATERIAL BALANCE
METALS
MIXTURES
ORGANIC COMPOUNDS
PROGRESS REPORT
SLURRIES
SUSPENSIONS
SYNTHESIS
SYNTHESIS GAS
TRANSITION ELEMENTS