Fluid Bed Process for the Catalytic Growth of Carbon Fibers. Final Report, April 1989-April 1990

摘要

Experiments were performed to assess the technical feasibility of using a fluid bed reactor for making high specific strength carbon fibers from natural gas feedstock. Using iron oxide coated alumina spheres as a catalyst, a small proportion of fibers were nucleated as part of a much larger mass of granular carbon in a fluidized bed at 1,054 C with 7 to 11% methane in hydrogen as the fluidizing gas. The small amount of fibers was obtained with iron nuclei measuring less than 1 micrometer on the 60 micrometers diameter alumina media. Results appeared to be independent of fluidization or gas composition between 7 and 11% CH4. This technique does not appear to be commercially promising.