EVALUATION OF PROCESS PRODUCTS FROM PYROLYSIS AND GASIFICATION OF DRIED DIGESTATES.

Autor: Grycova, Barbora, Stepkova, Katerina, Kubonova, Lenka, Kuca, Roman, Veronesiová, Sandra, Obroucka, Karel
Předmět:
Zdroj: Proceedings of the International Multidisciplinary Scientific GeoConference SGEM; 2013, p437-444, 8p
Abstrakt: A treatment and a disposal of wastes from the agriculture is an important issue of total agricultural production. From the operations without litter arise the substrate, called the slurry, whose direct use as a fertilizer has proved to be so problematic that there are efforts for alternative ways of its processing. One option is an anaerobic fermentation or co-fermentation of slurry to produce the biogas and the digestate. Due to the relatively strict legislative requirements that are set for emerging digestates for-use as fertilizer or for reclamation, it is necessary to design and evaluate other potential use of digestates. This paper presents the laboratory pyrolysis and gasification experiments of dried digestates, focusing on the composition of gaseous products from these processes and their calorific values. The calorific value of gas reached 16 MJ.m-3. Options of further use of solid residues from the pyrolysis and gasification process were evaluated, based on the iodine adsorption number, elemental analysis, heat of combustion, calorific value and density of solid residues. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index