Detail publikace

Analysis of Organic Compounds in Biochar Produced by Pyrolysis of Sludge

MRAVCOVÁ, L. MORÉ, F.B. RAČEK, J. ŠEVČÍK, J. VÁVROVÁ, M. MEINDL, J. ČÁSLAVSKÝ, J.

Originální název

Analysis of Organic Compounds in Biochar Produced by Pyrolysis of Sludge

Anglický název

Analysis of Organic Compounds in Biochar Produced by Pyrolysis of Sludge

Jazyk

en

Originální abstrakt

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).

Anglický abstrakt

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).

Dokumenty

BibTex


@misc{BUT153324,
  author="Ludmila {Mravcová} and Jakub {Raček} and Jan {Ševčík} and Milada {Vávrová} and Jiří {Meindl} and Josef {Čáslavský}",
  title="Analysis of Organic Compounds in Biochar Produced by Pyrolysis of Sludge",
  annote="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).",
  address="Vysoké učení technické v Brně, Fakulta chemická, Purkyňova 464/118, 612 00 Brno",
  booktitle="7th Meeting on Chemistry and Life 2018. Book of abstracts",
  chapter="153324",
  howpublished="online",
  institution="Vysoké učení technické v Brně, Fakulta chemická, Purkyňova 464/118, 612 00 Brno",
  year="2018",
  month="september",
  pages="44--44",
  publisher="Vysoké učení technické v Brně, Fakulta chemická, Purkyňova 464/118, 612 00 Brno",
  type="abstract"
}