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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/13073

Title: Flash pyrolysis of sewage sludge
Authors: POKORNA, Eva
POSTELMANS, Niels
Jenicek, P.
REGGERS, Guy
CARLEER, Robert
SCHREURS, Sonja
YPERMAN, Jan
Issue Date: 2007
Citation: 7th International Conference and Exhibition: WASTEWATER 2007, Brno, Tsjechië, 18-20 September, 2007
Abstract: A dry mixture of raw and activated sewage sludge was pyrolyzed in a bench-scale fluidized-bed reactor at residence times of less than 1s over the temperature range 400-700°C. Organic liquid yields of up to 52% maf were obtained at the optimum temperature of 450°C and 0.55-s residence time. Shorter reaction times gave slightly higher liquid yields. The effects of reaction athmosphere, char accumulation, and deashing on liquid yields were also investigated. A test in a larger unit at a feed rate of 2kg/h duplicated the bench-scale result. From elemental analyses, the char appears to be aromatic in character, while the liquid tar product has a H/C atomic ratio of about 1.77. A certain amount of water-soluble alcohols, ketones, etc., appear to be present also.
URI: http://hdl.handle.net/1942/13073
DOI: 10.1021/i200032a042
ISI #: A1986AZE3700042
Category: C2
Type: Conference Material
Appears in Collections: Research publications

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