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MRAVCOVÁ, L. MORÉ, F.B. RAČEK, J. ŠEVČÍK, J. VÁVROVÁ, M. MEINDL, J. ČÁSLAVSKÝ, J.
Original Title
Analysis of Organic Compounds in Biochar Produced by Pyrolysis of Sludge
Type
abstract
Language
English
Original Abstract
The largest part of energy production is realized by the burning of fossil fuels, the resources are depletable and their using causes the environmental pollution. Because of this, renewable sources of energy are constantly being sought, for example generation of gas from biomas and waste product (eg. sludge from sewage treatment plants) by pyrolysis and combustion processes. Pyrolysis is a thermochemical process (decomposition) without the presence of oxygen. The products can be divided into gas, liquid (pyrolysis oil) and solid residue (biochar). The gas mainly contains CO, H2, CO2, nitrogen oxides, CH4 and other low molecular weight hydrocarbons. The oil is composed from hydrocarbons with a high number of carbon and other organic compounds. The carbonaceous residue is composed from unreacted particles of decomposed material, mainly charred matter and ash. Biochar could be applied to soil for the carbon enrichment and better physical qualities. Pyrolysis of organic material is known to produce a wide variety of low and high molecular weight aromatic coumpounds (PAHs) and their derivatives depending on the biomass type, pyrolysis conditions and kinetic factors. In this work, the microwave pyrolysis under low temperature conditions was used for the processing of sludge from the waste water treatment plant. Especially, we analysed the biochar, as one pyrolysis product, for PAHs content. The pressurized solvent extraction (PSE) was used for extraction of PAHs into dichlormethane. The extract was cleaned by silicagel column and the fraction contain PAHs was analyzed using gas chromatography with time of flight mass spectrometry detection (GC-TOF MS).
Keywords
Biochar, GC-TOF-MS, PAHs
Authors
MRAVCOVÁ, L.; MORÉ, F.B.; RAČEK, J.; ŠEVČÍK, J.; VÁVROVÁ, M.; MEINDL, J.; ČÁSLAVSKÝ, J.
Released
12. 9. 2018
Publisher
Vysoké učení technické v Brně, Fakulta chemická, Purkyňova 464/118, 612 00 Brno
Location
Brno
ISBN
978-80-214-5488-0
Book
7th Meeting on Chemistry and Life 2018. Book of abstracts
Edition number
první
Pages from
44
Pages to
Pages count
159
BibTex
@misc{BUT153324, author="MRAVCOVÁ, L. and MORÉ, F.B. and RAČEK, J. and ŠEVČÍK, J. and VÁVROVÁ, M. and MEINDL, J. and ČÁSLAVSKÝ, J.", title="Analysis of Organic Compounds in Biochar Produced by Pyrolysis of Sludge", booktitle="7th Meeting on Chemistry and Life 2018. Book of abstracts", year="2018", edition="první", pages="44--44", publisher="Vysoké učení technické v Brně, Fakulta chemická, Purkyňova 464/118, 612 00 Brno", address="Brno", isbn="978-80-214-5488-0", note="abstract" }