ACTIVATION STUDIES WITH A PROMOTED PRECIPITATED IRON FISCHER-TROPSCH CATALYST Academic Article uri icon

abstract

  • The effect of reductant type (CO, H2, or H2/CO = 0.68), activation temperature (250, 280, and 310 C), duration (8 and 24 h), and pressure (0.1 and 1.48 MPa) on the activity and selectivity of a promoted precipitated iron catalyst (100Fe/3Cu/0.2K) was studied in a fixed bed reactor. It was found that activation parameters have a strong effect on the catalyst behavior during Fischer-Tropsch (FT) synthesis at 250 C, 1.48 MPa, 2 nL/g of catalyst/h, and H2/CO = 1. Activations in CO led to catalysts that had higher initial activity and better selectivity (less methane and other light hydrocarbons) than H2activated catalysts. However, the activity of CO-reduced catalysts declined with time on stream, whereas the activity of H2-reduced catalysts remained constant or increased during 120 h of testing. Activation in CO at 280 C and 0.1 MPa for 24 h was the most desirable on the basis of overall catalyst activity, selectivity, and stability. 1989, American Chemical Society. All rights reserved.

published proceedings

  • INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

altmetric score

  • 3

author list (cited authors)

  • BUKUR, D. B., LANG, X. S., ROSSIN, J. A., ZIMMERMAN, W. H., ROSYNEK, M. P., YEH, E. B., & LI, C. P.

citation count

  • 70

complete list of authors

  • BUKUR, DB||LANG, XS||ROSSIN, JA||ZIMMERMAN, WH||ROSYNEK, MP||YEH, EB||LI, CP

publication date

  • August 1989