Slurry Fischer-Tropsch/Mobil two stage process of converting SYNGAS to high octane gasoline. Final report

Technical Report · Wed Jun 01 00:00:00 EDT 1983

DOI:https://doi.org/10.2172/6838947· OSTI ID:6838947

Kuo, J C.W.

An evaluation study was conducted on a novel two-stage slurry Fischer-Tropsch/ZSM-5 process for converting low H/sub 2//CO ratio synthesis gas, which can generally be obtained from highly efficient, advanced coal-gasification systems, into high quality gasoline. The feasibility of this two-stage technology was successfully demonstrated in a newly designed and constructed bench-scale unit (BSU), consisting of a slurry bubble column reactor followed by a fixed-bed ZSM-5 reactor. Three Fischer-Tropsch catalysts of Fe/Cu/K/sub 2/CO/sub 3/ type were evaluated. Total hydrocarbon production as high as 815 g/gFe was achieved, which is substantially better than other results reported in the literature. Methane + ethane yields ranged from 2 to 18 wt % of total hydrocarbons produced, with reactor-wax (those heavy hydrocarbons retained in the slurry reactor under reaction conditions) yields ranging from 3 to 85 wt %. Other investigations of the first-stage operation included process variable and hydrodynamic studies. The second-stage ZSM-5 reactor performed smoothly and demonstrated the conversion of Fischer-Tropsch products into high quality gasoline. The gasoline yields, including the alkylate and excluding the reactor-wax and light paraffins in the feed to the second-stage reactor, were as high as 87 wt %. The raw gasoline samples had satisfactory stability properties. A conceptual process design and scoping cost estimate for a battery-limit commercial plant to produce 27,000 BPSD gasoline from clean synthesis gas was conducted. The estimated cost is $700 million in terms of 1983 dollars at a Wyoming location.

• Research Organization: Mobil Research and Development Corp., Paulsboro, NJ (USA)
• DOE Contract Number: AC22-80PC30022
• OSTI ID: 6838947
• Report Number(s): DOE/PC/30022-10; ON: DE84004411
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
CATALYSTS
PERFORMANCE TESTING
FISCHER-TROPSCH/MOBIL PROCESS
BENCH-SCALE EXPERIMENTS
MATHEMATICAL MODELS
GASOLINE
PRODUCTION
YIELDS
GASOLINE PLANTS
ECONOMIC ANALYSIS
CHEMICAL REACTORS
COAL GASIFICATION
DESIGN
EXPERIMENTAL DATA
FEASIBILITY STUDIES
FISCHER-TROPSCH SYNTHESIS
FLOWSHEETS
SLURRIES
SYNTHESIS GAS
CHEMICAL PLANTS
CHEMICAL REACTIONS
COAL LIQUEFACTION
DATA
DIAGRAMS
DISPERSIONS
ECONOMICS
FLUIDS
FUELS
GASES
GASIFICATION
INDUSTRIAL PLANTS
INFORMATION
LIQUEFACTION
LIQUID FUELS
MIXTURES
NUMERICAL DATA
PETROLEUM PRODUCTS
SUSPENSIONS
TESTING
THERMOCHEMICAL PROCESSES
090121* - Hydrocarbon Fuels- Chemical Synthesis- (1976-1989)