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PAN-based activated carbon fiber composites for sulfur dioxide conversion: Influence of fiber activation method

  • I. Martín-Gullón
  • , R. Andrews
  • , M. Jagtoyen
  • , F. Derbyshire

Producción científica: Articlerevisión exhaustiva

50 Citas (Scopus)

Resumen

Activated carbon fibers (ACF) were prepared from poly(acrylonitrile) (PAN) precursor fibers by two methods: steam activation at 650-1000 °C and KOH activation at 600-800 °C. Steam activation yielded relatively poorly developed porosity regardless of the activation temperature, maintaining a low surface area (around 700 m2 g-1) at very high burn-off, while KOH activation provided high porosities above 700 °C. However, at ratios of KOH to fiber greater than 1:1 wt/wt, the fiber morphology was destroyed. The SO2 conversion activity of the ACF was studied in the presence of oxygen and water. The activity was higher for as-produced KOH-activated samples (approximately 9 μmol SO2 g-1 min-1) than for steam activated fibers (approximately 4 μmol SO2 g-1 min-1), and correlated with lower oxygen content in the product fibers. The ACF were also used to manufacture composites. Composites retain the catalytic activity of the parent ACF.

Idioma originalEnglish
Páginas (desde-hasta)969-977
Número de páginas9
PublicaciónFuel
Volumen80
N.º7
DOI
EstadoPublished - may 2001

Nota bibliográfica

Funding Information:
This work was funded by the Fossil Energy AR&TD materials program (SC19X-SN719C) and by the University of Kentucky — Center for Applied Energy Research. The authors also thank Danny Turner, Craig Fowler and Lucı́a Ballester for their valued help.

Financiación

This work was funded by the Fossil Energy AR&TD materials program (SC19X-SN719C) and by the University of Kentucky — Center for Applied Energy Research. The authors also thank Danny Turner, Craig Fowler and Lucı́a Ballester for their valued help.

Financiadores
University of Kentucky Center for Applied Energy Research

    ASJC Scopus subject areas

    • General Chemical Engineering
    • Fuel Technology
    • Energy Engineering and Power Technology
    • Organic Chemistry

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