Fixed bed and slurry reactor studies of Fischer-Tropsch synthesis on precipitated iron catalyst

Dragomir B. Bukur, Snehal A. Patel, Xiaosu Lang

Research output: Contribution to journalArticle

69 Citations (Scopus)

Abstract

A sample of commercial Ruhrchemie catalyst (100 Fe/4.3 Cu/4.1 K/25 SiO2) for the Fischer-Tropsch synthesis was tested in a fixed bed and in a slurry reactor at process conditions similar to those used in commercial reactors. The apparent reaction rate constant, calculated assuming that the reaction rate has a first order dependence on hydrogen pressure, was nearly the same in both reactors during the first 380 h on stream. The catalyst deactivated slowly with time-on-stream in both reactors, while the hydrocarbon selectivity shifted towards lower molecular weight products. Secondary reactions (l-alkene hydrogenation and isomerization) increased gradually with time-on-stream in the slurry reactor, whereas the opposite trend was observed in the fixed bed reactor. The effects of process conditions on the catalyst activity and product selectivities (hydrocarbon product distribution, total alkene content, 2-alkene selectivity, organic oxygenates) were also investigated.

Original languageEnglish
Pages (from-to)329-349
Number of pages21
JournalApplied Catalysis
Volume61
Issue number1
DOIs
Publication statusPublished - 1990
Externally publishedYes

Fingerprint

Fischer-Tropsch synthesis
Alkenes
Olefins
Iron
Hydrocarbons
Catalysts
Reaction rates
Hydrogenation
Catalyst selectivity
Isomerization
Hydrogen
Rate constants
Catalyst activity
Molecular Weight
Molecular weight
Pressure

Keywords

  • alkenes)
  • Fischer-Tropsch synthesis
  • fixed-bed reactor
  • Iron
  • potassium
  • selectivity (hydrocarbons
  • silica.
  • slurry reactor
  • syngas conversion

ASJC Scopus subject areas

  • Engineering(all)
  • Medicine(all)

Cite this

Fixed bed and slurry reactor studies of Fischer-Tropsch synthesis on precipitated iron catalyst. / Bukur, Dragomir B.; Patel, Snehal A.; Lang, Xiaosu.

In: Applied Catalysis, Vol. 61, No. 1, 1990, p. 329-349.

Research output: Contribution to journalArticle

@article{a9683254f084486e98fd5dae0266088a,
title = "Fixed bed and slurry reactor studies of Fischer-Tropsch synthesis on precipitated iron catalyst",
abstract = "A sample of commercial Ruhrchemie catalyst (100 Fe/4.3 Cu/4.1 K/25 SiO2) for the Fischer-Tropsch synthesis was tested in a fixed bed and in a slurry reactor at process conditions similar to those used in commercial reactors. The apparent reaction rate constant, calculated assuming that the reaction rate has a first order dependence on hydrogen pressure, was nearly the same in both reactors during the first 380 h on stream. The catalyst deactivated slowly with time-on-stream in both reactors, while the hydrocarbon selectivity shifted towards lower molecular weight products. Secondary reactions (l-alkene hydrogenation and isomerization) increased gradually with time-on-stream in the slurry reactor, whereas the opposite trend was observed in the fixed bed reactor. The effects of process conditions on the catalyst activity and product selectivities (hydrocarbon product distribution, total alkene content, 2-alkene selectivity, organic oxygenates) were also investigated.",
keywords = "alkenes), Fischer-Tropsch synthesis, fixed-bed reactor, Iron, potassium, selectivity (hydrocarbons, silica., slurry reactor, syngas conversion",
author = "Bukur, {Dragomir B.} and Patel, {Snehal A.} and Xiaosu Lang",
year = "1990",
doi = "10.1016/S0166-9834(00)82154-5",
language = "English",
volume = "61",
pages = "329--349",
journal = "Applied Catalysis",
issn = "0166-9834",
publisher = "Elsevier BV",
number = "1",

}

TY - JOUR

T1 - Fixed bed and slurry reactor studies of Fischer-Tropsch synthesis on precipitated iron catalyst

AU - Bukur, Dragomir B.

AU - Patel, Snehal A.

AU - Lang, Xiaosu

PY - 1990

Y1 - 1990

N2 - A sample of commercial Ruhrchemie catalyst (100 Fe/4.3 Cu/4.1 K/25 SiO2) for the Fischer-Tropsch synthesis was tested in a fixed bed and in a slurry reactor at process conditions similar to those used in commercial reactors. The apparent reaction rate constant, calculated assuming that the reaction rate has a first order dependence on hydrogen pressure, was nearly the same in both reactors during the first 380 h on stream. The catalyst deactivated slowly with time-on-stream in both reactors, while the hydrocarbon selectivity shifted towards lower molecular weight products. Secondary reactions (l-alkene hydrogenation and isomerization) increased gradually with time-on-stream in the slurry reactor, whereas the opposite trend was observed in the fixed bed reactor. The effects of process conditions on the catalyst activity and product selectivities (hydrocarbon product distribution, total alkene content, 2-alkene selectivity, organic oxygenates) were also investigated.

AB - A sample of commercial Ruhrchemie catalyst (100 Fe/4.3 Cu/4.1 K/25 SiO2) for the Fischer-Tropsch synthesis was tested in a fixed bed and in a slurry reactor at process conditions similar to those used in commercial reactors. The apparent reaction rate constant, calculated assuming that the reaction rate has a first order dependence on hydrogen pressure, was nearly the same in both reactors during the first 380 h on stream. The catalyst deactivated slowly with time-on-stream in both reactors, while the hydrocarbon selectivity shifted towards lower molecular weight products. Secondary reactions (l-alkene hydrogenation and isomerization) increased gradually with time-on-stream in the slurry reactor, whereas the opposite trend was observed in the fixed bed reactor. The effects of process conditions on the catalyst activity and product selectivities (hydrocarbon product distribution, total alkene content, 2-alkene selectivity, organic oxygenates) were also investigated.

KW - alkenes)

KW - Fischer-Tropsch synthesis

KW - fixed-bed reactor

KW - Iron

KW - potassium

KW - selectivity (hydrocarbons

KW - silica.

KW - slurry reactor

KW - syngas conversion

UR - http://www.scopus.com/inward/record.url?scp=0025431907&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0025431907&partnerID=8YFLogxK

U2 - 10.1016/S0166-9834(00)82154-5

DO - 10.1016/S0166-9834(00)82154-5

M3 - Article

VL - 61

SP - 329

EP - 349

JO - Applied Catalysis

JF - Applied Catalysis

SN - 0166-9834

IS - 1

ER -