TITLE: Fischer-Tropsch Synthesis over Iron Catalysts: The Use of Reactive Scavengers to Identify Reaction Intermediates.

AUTHOR: C. Z. J. Wang;   J. G. Ekerdt.

INST.  AUTHOR: Texas Univ. at Austin. Dept. of Chemical Engineering.

SPONSOR: Department of Energy, Washington, DC.

LANGUAGE: English

PUB.  TYPE: Technical Report

PUB.  COUNTRY: United States

SOURCE: Department of Energy [DE],  1982,  32p.

NOTES: Annual meeting of heat transfer and energy conversion, Los Angeles, CA, USA, 14 Nov 1982.

ABSTRACT:

The synthesis of hydrocarbons from H sub 2 and CO was studied on a silica-supported iron catalyst. The synthesis was carried out at 1.54 atmospheres and 200 to 255 exp 0 C in a differential reactor. The working catalyst is realized by transforming Fe sub 2 O sub 3 into a mixture of bulk carbides and iron under synthesis conditions. After the catalyst achieves a steady state condition pulses of a helium stream saturated with pyridine are injected into the reactant gas mixture. The reactor effluent is found to contain alkylpyridines. These are argued to result from pyridine reacting with the alkyl fragments which are formed on the catalyst surface from H sub 2 and CO. The distribution of alkylpyridines is related to the synthesis product distribution as a means of gaining insight into the synthesis mechanism. 10 figures, 1 table. (ERA citation 07:062806)

REPORT  NUMBER: DOE/ER/10720-4;   CONF-821106-3

CONTRACT  NUMBER: AS05-80ER10720