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Title: Fischer-Tropsch synthesis over iron-based catalysts in slurry reactors. Reaction rates, kinetics and implications for improving hydrocarbon productivity

Abstract

The Fischer-Tropsch (FT) synthesis is carried out over a high activity precipitated iron catalyst promoted with silica and potassium in a slurry reactor. Reaction rates (FTS and water gas shift) and partial pressures are evaluated over a wide range of CO conversions (10 to 90%) and space velocities at 270{degrees}C, 175 psig and a H{sub 2}/CO ratio of 0.67. The partial pressure of water exhibits a maximum at intermediate CO conversion. Both the fraction of CO converted to hydrocarbons and the hydrocarbon space time yield decrease with increasing CO conversion. This implies that it would be beneficial to have lower conversion per pass in the reactor with recycle to achieve a high overall conversion. The data as well as experiments with water and CO{sub 2} addition enable us to determine a kinetic expression for the catalyst which shows negligible inhibition of the reaction rate by water or CO{sub 2}.

Authors:
;  [1]
  1. Center for Applied Energy Research, Lexington, KY (United States)
Publication Date:
OSTI Identifier:
370716
Report Number(s):
CONF-960376-
TRN: 96:003805-0776
Resource Type:
Conference
Resource Relation:
Conference: Spring national meeting of the American Chemical Society (ACS), New Orleans, LA (United States), 24-28 Mar 1996; Other Information: PBD: 1996; Related Information: Is Part Of 211th ACS national meeting; PB: 2284 p.
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; FISCHER-TROPSCH SYNTHESIS; IRON; CATALYTIC EFFECTS; CARBON DIOXIDE; CHEMICAL REACTIONS; CARBON MONOXIDE; CONVERSION; HYDROCARBONS; POTASSIUM; KINETICS; SILICA

Citation Formats

Raje, A P, and Davis, B H. Fischer-Tropsch synthesis over iron-based catalysts in slurry reactors. Reaction rates, kinetics and implications for improving hydrocarbon productivity. United States: N. p., 1996. Web.
Raje, A P, & Davis, B H. Fischer-Tropsch synthesis over iron-based catalysts in slurry reactors. Reaction rates, kinetics and implications for improving hydrocarbon productivity. United States.
Raje, A P, and Davis, B H. 1996. "Fischer-Tropsch synthesis over iron-based catalysts in slurry reactors. Reaction rates, kinetics and implications for improving hydrocarbon productivity". United States.
@article{osti_370716,
title = {Fischer-Tropsch synthesis over iron-based catalysts in slurry reactors. Reaction rates, kinetics and implications for improving hydrocarbon productivity},
author = {Raje, A P and Davis, B H},
abstractNote = {The Fischer-Tropsch (FT) synthesis is carried out over a high activity precipitated iron catalyst promoted with silica and potassium in a slurry reactor. Reaction rates (FTS and water gas shift) and partial pressures are evaluated over a wide range of CO conversions (10 to 90%) and space velocities at 270{degrees}C, 175 psig and a H{sub 2}/CO ratio of 0.67. The partial pressure of water exhibits a maximum at intermediate CO conversion. Both the fraction of CO converted to hydrocarbons and the hydrocarbon space time yield decrease with increasing CO conversion. This implies that it would be beneficial to have lower conversion per pass in the reactor with recycle to achieve a high overall conversion. The data as well as experiments with water and CO{sub 2} addition enable us to determine a kinetic expression for the catalyst which shows negligible inhibition of the reaction rate by water or CO{sub 2}.},
doi = {},
url = {https://www.osti.gov/biblio/370716}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 01 00:00:00 EDT 1996},
month = {Tue Oct 01 00:00:00 EDT 1996}
}

Conference:
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