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Title: Highly active and stable iron Fischer-Tropsch catalyst for synthesis gas conversion to liquid fuels

Abstract

A precipitated iron Fischer-Tropsch (F-T) catalyst (100 Fe/3 Cu/4 K/16 SiO{sub 2} on mass basis) was tested in a stirred tank slurry reactor under reaction conditions representative of industrial practice using CO-rich synthesis gas (260 C, 1.5--2.2 MPa, H{sub 2}/CO = 2/3). Repeatability of performance and reproducibility of catalyst preparation procedure were successfully demonstrated on a laboratory scale. Catalyst productivity was increased by operating at higher synthesis pressure while maintaining a constant contact time in the reactor and through the use of different catalyst pretreatment procedures. In one of the tests (run SA-2186), the catalyst productivity was 0.86 (g hydrocarbons/g Fe/h) at syngas conversion of 79%, methane selectivity of 3% (weight percent of total hydrocarbons produced), and C{sub 5}+ hydrocarbon selectivity of 83 wt %. This represents a substantial improvement in productivity in comparison to state-of-the-art iron F-T catalysts. This catalyst is ideally suited for production of high-quality diesel fuels and C{sub 2}-c{sub 4} olefins from a coal-derived synthesis gas.

Authors:
;  [1]
  1. Texas A and M Univ., College Station, TX (United States)
Publication Date:
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
697165
Resource Type:
Journal Article
Journal Name:
Industrial and Engineering Chemistry Research
Additional Journal Information:
Journal Volume: 38; Journal Issue: 9; Other Information: PBD: Sep 1999
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 10 SYNTHETIC FUELS; FISCHER-TROPSCH SYNTHESIS; CATALYSTS; IRON; CATALYTIC EFFECTS; CARBON MONOXIDE; METHANATION; DIESEL FUELS; ALKENES

Citation Formats

Bukur, D.B., and Lang, X. Highly active and stable iron Fischer-Tropsch catalyst for synthesis gas conversion to liquid fuels. United States: N. p., 1999. Web. doi:10.1021/ie990028n.
Bukur, D.B., & Lang, X. Highly active and stable iron Fischer-Tropsch catalyst for synthesis gas conversion to liquid fuels. United States. doi:10.1021/ie990028n.
Bukur, D.B., and Lang, X. Wed . "Highly active and stable iron Fischer-Tropsch catalyst for synthesis gas conversion to liquid fuels". United States. doi:10.1021/ie990028n.
@article{osti_697165,
title = {Highly active and stable iron Fischer-Tropsch catalyst for synthesis gas conversion to liquid fuels},
author = {Bukur, D.B. and Lang, X.},
abstractNote = {A precipitated iron Fischer-Tropsch (F-T) catalyst (100 Fe/3 Cu/4 K/16 SiO{sub 2} on mass basis) was tested in a stirred tank slurry reactor under reaction conditions representative of industrial practice using CO-rich synthesis gas (260 C, 1.5--2.2 MPa, H{sub 2}/CO = 2/3). Repeatability of performance and reproducibility of catalyst preparation procedure were successfully demonstrated on a laboratory scale. Catalyst productivity was increased by operating at higher synthesis pressure while maintaining a constant contact time in the reactor and through the use of different catalyst pretreatment procedures. In one of the tests (run SA-2186), the catalyst productivity was 0.86 (g hydrocarbons/g Fe/h) at syngas conversion of 79%, methane selectivity of 3% (weight percent of total hydrocarbons produced), and C{sub 5}+ hydrocarbon selectivity of 83 wt %. This represents a substantial improvement in productivity in comparison to state-of-the-art iron F-T catalysts. This catalyst is ideally suited for production of high-quality diesel fuels and C{sub 2}-c{sub 4} olefins from a coal-derived synthesis gas.},
doi = {10.1021/ie990028n},
journal = {Industrial and Engineering Chemistry Research},
number = 9,
volume = 38,
place = {United States},
year = {1999},
month = {9}
}