Is the biochar produced from sewage sludge a good quality solid fuel?

• Autorzy: Pulka J. , Wiśniewski D. , Gołaszewski J. , Białowiec A.

Identyfikatory

DOI

10.1515/aep-2016-0043

• Języki publikacji: EN

Abstrakty

EN

The influence of sewage sludge torrefaction temperature on fuel properties was investigated. Non-lignocellulosic waste thermal treatment experiment was conducted within 1 h residence time, under the following temperatures: 200, 220, 240, 260, 280 and 300°C. Sawdust was used as lignocellulosic reference material. The following parameters of biochar have been measured: moisture, higher heating value, ash content, volatile compounds and sulfur content. Sawdust biochar has been confirmed to be a good quality solid fuel. High ash and sulfur content may be an obstacle for biochar energy reuse. The best temperature profile for sawdust torrefaction and fuel production for 1 h residence time was 220°C. At this temperature the product contained 84% of initial energy while decreased the mass by 25%. The best temperature profile for sewage sludge was 240°C. The energy residue was 91% and the mass residue was 85%. Higher temperatures in both cases caused excessive mass and energy losses.

Słowa kluczowe

EN

torrefaction; sewage sludge; biochar; calorific value; solid fuel; ash

• Wydawca: Institute of Environmental Engineering, Polish Academy of Sciences
• Czasopismo: Archives of Environmental Protection
• Rocznik: 2016
• Tom: Vol. 42, no. 4
• Strony: 125--134
• Opis fizyczny: Bibliogr. 38 poz., tab., wykr.

Twórcy

autor

Pulka J.

• Wrocław University of Environmental and Life Sciences, Poland, Institute of Agricultural Engineering, Faculty of Life Sciences and Technology

autor

Wiśniewski D.

• University of Warmia and Mazury, Poland, The Faculty of Technical Sciences

autor

Gołaszewski J.

• University of Warmia and Mazury, Poland, Research Center for Renewable Energy

autor

Białowiec A.

• Wrocław University of Environmental and Life Sciences, Poland, Institute of Agricultural Engineering, Faculty of Life Sciences and Technology

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.