Standard liquid fuel for industrial boilers from used wood

Christian Lindfors, Anja Oasmaa, Alexi Välimäki, Taina Ohra-Aho, Henna Punkkinen, Jutta Laine-Ylijoki

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Abstract

The purpose of the research was to validate if the fast pyrolysis bio-oil (FPBO) from used wood would meet the specifications set by the standard EN 16900-2017 for industrial boilers. Commercial used wood Class C was used for fast pyrolysis. According to physical characterization studies, the dominant material groups were (virgin) wood (i.e. no visible coatings) (58 wt%) and chemically treated wood (41 wt%). The share of plastics was 0.7 wt%. The contents of heavy metals were not significant. No bromine was observed and the content of chlorine was ≤0.05 wt%. Prior pyrolysis studies, the sample was grinded, dried, and sieved. Plastic fraction was separated to over 0.98 mm sieve fraction. The main fraction having particle size of 0.55 − 0.98 mm containing wood was tested in one experiment and a mixture of plastic fraction (over 0.98 mm) and wood fraction (0.55 − 0.98 mm) was tested in two other experiments. The fines below 0.55 mm were removed; Pb was found only in this finest fraction. The pyrolysis experiments were carried out in a bench scale bubbling fluidized bed reactor (1 kg/h). Organic yields were lower (42 − 47 wt%) than with sawdust (62 wt%) but at the same level than those with stored forest residues (46 wt%). The side products char and gases are combusted for process energy in commercial integrated process. The liquid product had a high water content, which resulted in a spontaneous phase separation. The phases were mixed together, and a part of water was gently removed to obtain a single phase product with a water content of 21 wt%. The liquid product was a homogenous fluid, which in most cases met the demands of the EN standard and hence can be used in industrial boilers. All product met the specifications for REACH.

Original languageEnglish
Title of host publicationProceedings of European Biomass Conference and Exhibition, EUBCE 2018
PublisherETA-Florence Renewable Energies
Pages1030-1034
Number of pages5
ISBN (Electronic)978-88-89407-18-9
DOIs
Publication statusPublished - 1 May 2018
MoE publication typeB3 Non-refereed article in conference proceedings
Event26th European Biomass Conference and Exhibition, EUBCE 2018
- Bella center, Copenhagen, Denmark
Duration: 14 May 201817 May 2018

Conference

Conference26th European Biomass Conference and Exhibition, EUBCE 2018
Abbreviated titleEUBCE 2018
CountryDenmark
CityCopenhagen
Period14/05/1817/05/18

Fingerprint

Liquid fuels
Boilers
Wood
pyrolysis
liquid
liquids
Pyrolysis
plastics
plastic
Plastics
Water content
water content
Specifications
bromine
process energy
Sawdust
fluidized beds
Sieves
experiment
Bromine

Keywords

  • Pyrolysis
  • Pyrolysis oil
  • Used wood

Cite this

Lindfors, C., Oasmaa, A., Välimäki, A., Ohra-Aho, T., Punkkinen, H., & Laine-Ylijoki, J. (2018). Standard liquid fuel for industrial boilers from used wood. In Proceedings of European Biomass Conference and Exhibition, EUBCE 2018 (pp. 1030-1034). ETA-Florence Renewable Energies. https://doi.org/10.5071/26thEUBCE2018-3DO.6.4
Lindfors, Christian ; Oasmaa, Anja ; Välimäki, Alexi ; Ohra-Aho, Taina ; Punkkinen, Henna ; Laine-Ylijoki, Jutta. / Standard liquid fuel for industrial boilers from used wood. Proceedings of European Biomass Conference and Exhibition, EUBCE 2018. ETA-Florence Renewable Energies, 2018. pp. 1030-1034
@inproceedings{cc935d4f0e1e4c44983bc0ee0d4e9fb6,
title = "Standard liquid fuel for industrial boilers from used wood",
abstract = "The purpose of the research was to validate if the fast pyrolysis bio-oil (FPBO) from used wood would meet the specifications set by the standard EN 16900-2017 for industrial boilers. Commercial used wood Class C was used for fast pyrolysis. According to physical characterization studies, the dominant material groups were (virgin) wood (i.e. no visible coatings) (58 wt{\%}) and chemically treated wood (41 wt{\%}). The share of plastics was 0.7 wt{\%}. The contents of heavy metals were not significant. No bromine was observed and the content of chlorine was ≤0.05 wt{\%}. Prior pyrolysis studies, the sample was grinded, dried, and sieved. Plastic fraction was separated to over 0.98 mm sieve fraction. The main fraction having particle size of 0.55 − 0.98 mm containing wood was tested in one experiment and a mixture of plastic fraction (over 0.98 mm) and wood fraction (0.55 − 0.98 mm) was tested in two other experiments. The fines below 0.55 mm were removed; Pb was found only in this finest fraction. The pyrolysis experiments were carried out in a bench scale bubbling fluidized bed reactor (1 kg/h). Organic yields were lower (42 − 47 wt{\%}) than with sawdust (62 wt{\%}) but at the same level than those with stored forest residues (46 wt{\%}). The side products char and gases are combusted for process energy in commercial integrated process. The liquid product had a high water content, which resulted in a spontaneous phase separation. The phases were mixed together, and a part of water was gently removed to obtain a single phase product with a water content of 21 wt{\%}. The liquid product was a homogenous fluid, which in most cases met the demands of the EN standard and hence can be used in industrial boilers. All product met the specifications for REACH.",
keywords = "Pyrolysis, Pyrolysis oil, Used wood",
author = "Christian Lindfors and Anja Oasmaa and Alexi V{\"a}lim{\"a}ki and Taina Ohra-Aho and Henna Punkkinen and Jutta Laine-Ylijoki",
note = "Abstract reviewed",
year = "2018",
month = "5",
day = "1",
doi = "10.5071/26thEUBCE2018-3DO.6.4",
language = "English",
pages = "1030--1034",
booktitle = "Proceedings of European Biomass Conference and Exhibition, EUBCE 2018",
publisher = "ETA-Florence Renewable Energies",
address = "Italy",

}

Lindfors, C, Oasmaa, A, Välimäki, A, Ohra-Aho, T, Punkkinen, H & Laine-Ylijoki, J 2018, Standard liquid fuel for industrial boilers from used wood. in Proceedings of European Biomass Conference and Exhibition, EUBCE 2018. ETA-Florence Renewable Energies, pp. 1030-1034, 26th European Biomass Conference and Exhibition, EUBCE 2018
, Copenhagen, Denmark, 14/05/18. https://doi.org/10.5071/26thEUBCE2018-3DO.6.4

Standard liquid fuel for industrial boilers from used wood. / Lindfors, Christian; Oasmaa, Anja; Välimäki, Alexi; Ohra-Aho, Taina; Punkkinen, Henna; Laine-Ylijoki, Jutta.

Proceedings of European Biomass Conference and Exhibition, EUBCE 2018. ETA-Florence Renewable Energies, 2018. p. 1030-1034.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

TY - GEN

T1 - Standard liquid fuel for industrial boilers from used wood

AU - Lindfors, Christian

AU - Oasmaa, Anja

AU - Välimäki, Alexi

AU - Ohra-Aho, Taina

AU - Punkkinen, Henna

AU - Laine-Ylijoki, Jutta

N1 - Abstract reviewed

PY - 2018/5/1

Y1 - 2018/5/1

N2 - The purpose of the research was to validate if the fast pyrolysis bio-oil (FPBO) from used wood would meet the specifications set by the standard EN 16900-2017 for industrial boilers. Commercial used wood Class C was used for fast pyrolysis. According to physical characterization studies, the dominant material groups were (virgin) wood (i.e. no visible coatings) (58 wt%) and chemically treated wood (41 wt%). The share of plastics was 0.7 wt%. The contents of heavy metals were not significant. No bromine was observed and the content of chlorine was ≤0.05 wt%. Prior pyrolysis studies, the sample was grinded, dried, and sieved. Plastic fraction was separated to over 0.98 mm sieve fraction. The main fraction having particle size of 0.55 − 0.98 mm containing wood was tested in one experiment and a mixture of plastic fraction (over 0.98 mm) and wood fraction (0.55 − 0.98 mm) was tested in two other experiments. The fines below 0.55 mm were removed; Pb was found only in this finest fraction. The pyrolysis experiments were carried out in a bench scale bubbling fluidized bed reactor (1 kg/h). Organic yields were lower (42 − 47 wt%) than with sawdust (62 wt%) but at the same level than those with stored forest residues (46 wt%). The side products char and gases are combusted for process energy in commercial integrated process. The liquid product had a high water content, which resulted in a spontaneous phase separation. The phases were mixed together, and a part of water was gently removed to obtain a single phase product with a water content of 21 wt%. The liquid product was a homogenous fluid, which in most cases met the demands of the EN standard and hence can be used in industrial boilers. All product met the specifications for REACH.

AB - The purpose of the research was to validate if the fast pyrolysis bio-oil (FPBO) from used wood would meet the specifications set by the standard EN 16900-2017 for industrial boilers. Commercial used wood Class C was used for fast pyrolysis. According to physical characterization studies, the dominant material groups were (virgin) wood (i.e. no visible coatings) (58 wt%) and chemically treated wood (41 wt%). The share of plastics was 0.7 wt%. The contents of heavy metals were not significant. No bromine was observed and the content of chlorine was ≤0.05 wt%. Prior pyrolysis studies, the sample was grinded, dried, and sieved. Plastic fraction was separated to over 0.98 mm sieve fraction. The main fraction having particle size of 0.55 − 0.98 mm containing wood was tested in one experiment and a mixture of plastic fraction (over 0.98 mm) and wood fraction (0.55 − 0.98 mm) was tested in two other experiments. The fines below 0.55 mm were removed; Pb was found only in this finest fraction. The pyrolysis experiments were carried out in a bench scale bubbling fluidized bed reactor (1 kg/h). Organic yields were lower (42 − 47 wt%) than with sawdust (62 wt%) but at the same level than those with stored forest residues (46 wt%). The side products char and gases are combusted for process energy in commercial integrated process. The liquid product had a high water content, which resulted in a spontaneous phase separation. The phases were mixed together, and a part of water was gently removed to obtain a single phase product with a water content of 21 wt%. The liquid product was a homogenous fluid, which in most cases met the demands of the EN standard and hence can be used in industrial boilers. All product met the specifications for REACH.

KW - Pyrolysis

KW - Pyrolysis oil

KW - Used wood

UR - http://www.scopus.com/inward/record.url?scp=85051033845&partnerID=8YFLogxK

U2 - 10.5071/26thEUBCE2018-3DO.6.4

DO - 10.5071/26thEUBCE2018-3DO.6.4

M3 - Conference article in proceedings

SP - 1030

EP - 1034

BT - Proceedings of European Biomass Conference and Exhibition, EUBCE 2018

PB - ETA-Florence Renewable Energies

ER -

Lindfors C, Oasmaa A, Välimäki A, Ohra-Aho T, Punkkinen H, Laine-Ylijoki J. Standard liquid fuel for industrial boilers from used wood. In Proceedings of European Biomass Conference and Exhibition, EUBCE 2018. ETA-Florence Renewable Energies. 2018. p. 1030-1034 https://doi.org/10.5071/26thEUBCE2018-3DO.6.4