TITLE: Effect of Carbon Dioxide on the Kinetics of the Fischer-Tropsch Synthesis on Iron Catalysts.

AUTHOR: I. C. Yates;   C. N. Satterfield.

INST.  AUTHOR: Massachusetts Inst. of Tech., Cambridge. 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],  1988,  19p.

NTIS ORDER NO.: DE88007922/INW

ABSTRACT:

A recently proposed kinetic expression applicable to feed ratios H sub 2 CO of about 0.8 or less correlates the synthesis rate by an equation containing an inhibition term for CO sub 2 and assumes that water vapor concentrations are too low to offer significant inhibition (Deckwer et all., 1986). Experimental studies here with synthesis gas of H sub 2 CO ratios of 0.67 to 0.72 to which CO sub 2 was added show, in contrast, that CO sub 2 is relatively inert and that the data are well correlated by an equation developed by Huff (1982) which contains an inhibition term for H sub 2 O, but not for CO sub 2 . We suggest that the inhibition attributed to CO sub 2 was instead actually caused by H sub 2 O formed by the reverse water-gas-shift reaction. 13 refs., 7 figs. (ERA citation 13:032422)

REPORT  NUMBER: DOE/PC/80015-T3

CONTRACT  NUMBER: AC22-85PC80015