Porosity development in steam activated chars from brown coal and derived humic acids.

• Autorzy: Filozof-Nieścior A. , Kaczmarczyk J. , Siemieniewska T.
• Konferencja: IV International Conference Catalysis and Adsorption in Fuel Processing and Environmental Protection, September 18-21, 2002, Kudowa Zdrój, Poland
• Języki publikacji: EN

Abstrakty

EN

Humodetrinitic brown coal, initial and demineralized, and brown-coal-derived humic acids were carbonized to the final heat treatment temperature (HTT) of 900°C, then subjected to isothermal steam gasification (activation) to achieve the burn-off of 50%. For the non-activated and activated chars adsorption measurements of carbon dioxide and benzene at 25°C were performed. On the basis of the obtained adsorption isotherms, the values of chosen porosity parameters were calculated. The influence of the kind of precursor on the structure of porosity developed in the carbonized and steam activated materials was discussed.

Słowa kluczowe

EN

porosity; adsorption; brown coal; humic acids; steam activation

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Prace Naukowe Instytutu Chemii i Technologii Nafty i Węgla Politechniki Wrocławskiej. Konferencje
• Rocznik: 2002
• Tom: Vol. 10, nr 57
• Strony: 69--74
• Opis fizyczny: Bibliogr. 8

Twórcy

autor

Filozof-Nieścior A.

autor

Kaczmarczyk J.

autor

Siemieniewska T.

• Laboratory for Lignites and Carbon Adsorbents, Institute of Chemistry and Technology of Petroleum and Coal, Wrocław University of Technology, ul. Gdańska 7/9, 50-344, Wrocław, Poland