Carbon molecular sieve production from defatted spent coffee ground using ZnCl2 and benzene for gas purification

Kaya M., Atelge M. R., Bekirogullari M., Eskicioglu C., Atabani A., Kumar G., ...Daha Fazla

FUEL, cilt.277, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 277
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1016/j.fuel.2020.118183
  • Dergi Adı: FUEL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Agricultural & Environmental Science Database, Biotechnology Research Abstracts, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Pollution Abstracts, Civil Engineering Abstracts
  • Anahtar Kelimeler: Defatted spent coffee ground, Carbon molecular sieve (CMS), Gas purification, Benzene, CHEMICAL-VAPOR-DEPOSITION, ACTIVATED CARBON, PORE SIZES, ADSORPTION, SEPARATION, METHANE, MEMBRANES, DIOXIDE, IMPREGNATION, PYROLYSIS
  • Erciyes Üniversitesi Adresli: Evet

Özet

The aim of the current study is to manufacture molecular sieve from the defatted spent coffee ground. The defatted spent coffee ground for the specified particle size (100 mu m) was chemically activated with different agents (ZnCl2, H3PO4, KOH) and then carbonized at different temperatures (400-900 degrees C). A thorough characterization of the produced activated carbon was performed and activated carbons with the highest BET surface area were subsequently used to produce carbon molecular sieve. The surface modification was performed with benzene vapor at different temperatures (600-900 degrees C) and different combustion times (30-90 min.). In addition to the BET analysis, SEM, TGA and FT-IR analysis were also undertaken. The results obtained through characterizations showed that the pore diameters of carbon molecular sieve produced from defatted spent coffee ground varied from 2 to 4 angstrom. To conclude, the results suggest that the fabricated carbon molecular sieve can be used for the removal of impurities such as CH4, CO2, NOx and other impurities in natural and biogas considering the porosity of the sieves.