TITLE: CO + H Sub 2 Reaction over Nitrogen-Modified Iron Catalysts.  Quarterly Technical Progress Report, October 1, 1984-December 31, 1984.

AUTHOR: W. N. Delgass.

INST.  AUTHOR: Purdue Univ., Lafayette, IN. School of Chemical Engineering.

SPONSOR: Department of Energy, Washington, DC.

LANGUAGE: English

PUB.  TYPE: Technical Report

PUB.  COUNTRY: United States

SOURCE: Department of Energy [DE],  1985,  25p.

NTIS ORDER NO.: DE85013791/INW

ABSTRACT:

Preoxidizing a freshly prepared zeta-Fe sub 2 N catalyst resulted in unique Fischer-Tropsch behavior. Characterization of this catalyst by Moessbauer spectroscopy indicated contributions from both zeta-Fe sub 2 N and Fe sub 3 O sub 4 . The kinetic behavior of this preoxidized catalyst revealed a remarkable enhancement in the C sub 4 and C sub 5 hydrocarbons as compared to the kinetics over the zeta nitride. Transient kinetic studies by mass spectrometry determined the bulk stoichiometry of a prenitrided catalyst after 12 hours of reaction in 3/1 H sub 2 /CO at 523 K by monitoring the H sub 2 O, NH sub 3 and CH sub 4 produced during temperature programmed reduction in H sub 2 . The epsilon-Fe/sub 2.7/N catalyst lost 24% of its nitrogen. The zeta-Fe sub 2 N catalyst lost 15% of its nitrogen. 14 refs., 3 figs., 2 tabs. (ERA citation 10:030067)

REPORT  NUMBER: DOE/PC/50804-9

CONTRACT  NUMBER: FG22-82PC50804