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2015 | 13 | 1 |
Tytuł artykułu

Salix viminaliswood as a new precursor for manufacturing of carbon molecular sieves for effective methane/nitrogen separation

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Separation of a methane/nitrogen gas mixture was investigated by means of carbon molecular sieves (CMS) obtained from a newly discovered “green” resource: Salix viminalis. This plant grows quickly, yields hard wood and is frequently cultivated for energy purposes (renewable green fuel). Unconventional applications such as charcoal fabrication using this sort of wood are very rare. Carbonization of the wood (1–3 h, 600–700°C) yields carbons with a very narrow pore size distribution (determined by N2 adsorption at -196°C) resembling a perfect CMS. The diameter of most pores (ca. 0.8 nm) is comparable to the size of simple molecules, thus enabling separation. The sieving effect was proven in an industrially important process of CH4/N2 separation at 30–70°C. Despite relatively minor differences of the size of the molecules, the experiment demonstrated that separation factors are placed in the range 3.64–10.20. Additional experiments involving krypton proved that the separation mechanism is based on a geometric factor i.e. the known size and shape of the molecules under separation.
EN
Wydawca
Czasopismo
Rocznik
Tom
13
Numer
1
Opis fizyczny
Daty
otrzymano
2014-04-29
zaakceptowano
2014-11-07
online
2015-04-01
Twórcy
autor
  • Faculty of Chemistry, Nicholas Copernicus University, ul. Gagarina
    11, 87-100 Torun, Poland
  • Faculty of Chemistry, Nicholas Copernicus University, ul. Gagarina
    11, 87-100 Torun, Poland
  • Flerov Laboratory of Nuclear Reactions, Joint
    Institute for Nuclear Research, Dubna, 141980, Russia
autor
  • Faculty of Chemistry, Nicholas Copernicus University, ul. Gagarina
    11, 87-100 Torun, Poland
  • Faculty of Chemistry, Nicholas Copernicus University, ul. Gagarina
    11, 87-100 Torun, Poland
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_1515_chem-2015-0091
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