Investigating the effect of Cu/zeolite on deoxygenation of bio-oil from pyrolysis of pine wood

Research output: Contribution to journalConference paperResearchpeer-review

Abstract

Pyrolysis is one of the significant technologies that can utilize lignocellulose biomass to produce different bioenergy fuels, such as bio-oil, pyrolytic gases and bio-char. The application of pyrolysis has been extensively studied to produce bio-oil, which is foreseen as the potential transportation fuel in the near future. However, the presence of oxygenated compounds, such as phenols and alcohols in bio-oil makes it highly acidic and unstable for a suitable transportation fuel. These oxygenated compounds can be converted to refinable hydrocarbons by using different catalysts. Therefore, this study aimed to prepare a catalyst that is Cu10%-zeolite and investigated its deoxygenation activity for bio-oil produced from pyrolysis of pine wood sawdust. The catalyst was prepared by a wet-impregnation method. Subsequently, the catalyst was characterized by X-ray diffraction and transmission electron microscopy. Furthermore, the catalyst was applied for in-situ (catalyst: Biomass=5) and ex-situ catalytic pyrolysis (catalyst: Biomass=3) and the results were compared with those from sole zeolite support. The pyrolysis process was carried out at a heating rate of 100 °C/min to a final temperature of 700 °C and the composition of bio-oil was examined by gas chromatography-mass spectroscopy. The results revealed that Cu-zeolite showed significant deoxygenation activity for bio-oil as compared to zeolite or without any catalyst. Evidently, Cu-zeolite after in-situ pyrolysis produced bio-oil with 20.9% aromatic hydrocarbons and 7.5% aliphatic hydrocarbons, which were approximately 80% and several times higher than with only zeolite, respectively. Meanwhile the concentration of alcohols was reduced from 47.5% to 5%. On the other hand, bio-oil produced from ex-situ catalytic pyrolysis was enriched with 41.6% aromatic hydrocarbons while only 1% alcohols were present in bio-oil. This promising deoxygenation activity can be ascribed to Cu-zeolite's catalytic activity that converted phenol and alcohols to refinable hydrocarbons via various reactions, such as dehydration, decarboxylation and decarbonylation.

Fingerprint

Wood
Pyrolysis
Catalysts
Alcohols
Biomass
Aromatic hydrocarbons
Hydrocarbons
Phenols
Sawdust
Oils
Gas oils
Heating rate
Dehydration
Impregnation
Gas chromatography
Catalyst activity
Spectroscopy
Transmission electron microscopy
X ray diffraction
Chemical analysis

Bibliographical note

Copyright the Author(s) 2019. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

  • Bio-oil upgrading
  • Catalytic pyrolysis
  • Cu-zeolite
  • Pine wood

Cite this

@article{371ed28fbe994b6b868548ab16765563,
title = "Investigating the effect of Cu/zeolite on deoxygenation of bio-oil from pyrolysis of pine wood",
abstract = "Pyrolysis is one of the significant technologies that can utilize lignocellulose biomass to produce different bioenergy fuels, such as bio-oil, pyrolytic gases and bio-char. The application of pyrolysis has been extensively studied to produce bio-oil, which is foreseen as the potential transportation fuel in the near future. However, the presence of oxygenated compounds, such as phenols and alcohols in bio-oil makes it highly acidic and unstable for a suitable transportation fuel. These oxygenated compounds can be converted to refinable hydrocarbons by using different catalysts. Therefore, this study aimed to prepare a catalyst that is Cu10{\%}-zeolite and investigated its deoxygenation activity for bio-oil produced from pyrolysis of pine wood sawdust. The catalyst was prepared by a wet-impregnation method. Subsequently, the catalyst was characterized by X-ray diffraction and transmission electron microscopy. Furthermore, the catalyst was applied for in-situ (catalyst: Biomass=5) and ex-situ catalytic pyrolysis (catalyst: Biomass=3) and the results were compared with those from sole zeolite support. The pyrolysis process was carried out at a heating rate of 100 °C/min to a final temperature of 700 °C and the composition of bio-oil was examined by gas chromatography-mass spectroscopy. The results revealed that Cu-zeolite showed significant deoxygenation activity for bio-oil as compared to zeolite or without any catalyst. Evidently, Cu-zeolite after in-situ pyrolysis produced bio-oil with 20.9{\%} aromatic hydrocarbons and 7.5{\%} aliphatic hydrocarbons, which were approximately 80{\%} and several times higher than with only zeolite, respectively. Meanwhile the concentration of alcohols was reduced from 47.5{\%} to 5{\%}. On the other hand, bio-oil produced from ex-situ catalytic pyrolysis was enriched with 41.6{\%} aromatic hydrocarbons while only 1{\%} alcohols were present in bio-oil. This promising deoxygenation activity can be ascribed to Cu-zeolite's catalytic activity that converted phenol and alcohols to refinable hydrocarbons via various reactions, such as dehydration, decarboxylation and decarbonylation.",
keywords = "Bio-oil upgrading, Catalytic pyrolysis, Cu-zeolite, Pine wood",
author = "Ravinder Kumar and Vladimir Strezov and Tao Kan and Haftom Weldekidan and Jing He",
note = "Copyright the Author(s) 2019. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.",
year = "2019",
doi = "10.1016/j.egypro.2019.02.135",
language = "English",
volume = "160",
pages = "186--193",
journal = "Energy Procedia",
issn = "1876-6102",
publisher = "Elsevier",

}

Investigating the effect of Cu/zeolite on deoxygenation of bio-oil from pyrolysis of pine wood. / Kumar, Ravinder; Strezov, Vladimir; Kan, Tao; Weldekidan, Haftom; He, Jing.

In: Energy Procedia, Vol. 160, 2019, p. 186-193.

Research output: Contribution to journalConference paperResearchpeer-review

TY - JOUR

T1 - Investigating the effect of Cu/zeolite on deoxygenation of bio-oil from pyrolysis of pine wood

AU - Kumar, Ravinder

AU - Strezov, Vladimir

AU - Kan, Tao

AU - Weldekidan, Haftom

AU - He, Jing

N1 - Copyright the Author(s) 2019. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

PY - 2019

Y1 - 2019

N2 - Pyrolysis is one of the significant technologies that can utilize lignocellulose biomass to produce different bioenergy fuels, such as bio-oil, pyrolytic gases and bio-char. The application of pyrolysis has been extensively studied to produce bio-oil, which is foreseen as the potential transportation fuel in the near future. However, the presence of oxygenated compounds, such as phenols and alcohols in bio-oil makes it highly acidic and unstable for a suitable transportation fuel. These oxygenated compounds can be converted to refinable hydrocarbons by using different catalysts. Therefore, this study aimed to prepare a catalyst that is Cu10%-zeolite and investigated its deoxygenation activity for bio-oil produced from pyrolysis of pine wood sawdust. The catalyst was prepared by a wet-impregnation method. Subsequently, the catalyst was characterized by X-ray diffraction and transmission electron microscopy. Furthermore, the catalyst was applied for in-situ (catalyst: Biomass=5) and ex-situ catalytic pyrolysis (catalyst: Biomass=3) and the results were compared with those from sole zeolite support. The pyrolysis process was carried out at a heating rate of 100 °C/min to a final temperature of 700 °C and the composition of bio-oil was examined by gas chromatography-mass spectroscopy. The results revealed that Cu-zeolite showed significant deoxygenation activity for bio-oil as compared to zeolite or without any catalyst. Evidently, Cu-zeolite after in-situ pyrolysis produced bio-oil with 20.9% aromatic hydrocarbons and 7.5% aliphatic hydrocarbons, which were approximately 80% and several times higher than with only zeolite, respectively. Meanwhile the concentration of alcohols was reduced from 47.5% to 5%. On the other hand, bio-oil produced from ex-situ catalytic pyrolysis was enriched with 41.6% aromatic hydrocarbons while only 1% alcohols were present in bio-oil. This promising deoxygenation activity can be ascribed to Cu-zeolite's catalytic activity that converted phenol and alcohols to refinable hydrocarbons via various reactions, such as dehydration, decarboxylation and decarbonylation.

AB - Pyrolysis is one of the significant technologies that can utilize lignocellulose biomass to produce different bioenergy fuels, such as bio-oil, pyrolytic gases and bio-char. The application of pyrolysis has been extensively studied to produce bio-oil, which is foreseen as the potential transportation fuel in the near future. However, the presence of oxygenated compounds, such as phenols and alcohols in bio-oil makes it highly acidic and unstable for a suitable transportation fuel. These oxygenated compounds can be converted to refinable hydrocarbons by using different catalysts. Therefore, this study aimed to prepare a catalyst that is Cu10%-zeolite and investigated its deoxygenation activity for bio-oil produced from pyrolysis of pine wood sawdust. The catalyst was prepared by a wet-impregnation method. Subsequently, the catalyst was characterized by X-ray diffraction and transmission electron microscopy. Furthermore, the catalyst was applied for in-situ (catalyst: Biomass=5) and ex-situ catalytic pyrolysis (catalyst: Biomass=3) and the results were compared with those from sole zeolite support. The pyrolysis process was carried out at a heating rate of 100 °C/min to a final temperature of 700 °C and the composition of bio-oil was examined by gas chromatography-mass spectroscopy. The results revealed that Cu-zeolite showed significant deoxygenation activity for bio-oil as compared to zeolite or without any catalyst. Evidently, Cu-zeolite after in-situ pyrolysis produced bio-oil with 20.9% aromatic hydrocarbons and 7.5% aliphatic hydrocarbons, which were approximately 80% and several times higher than with only zeolite, respectively. Meanwhile the concentration of alcohols was reduced from 47.5% to 5%. On the other hand, bio-oil produced from ex-situ catalytic pyrolysis was enriched with 41.6% aromatic hydrocarbons while only 1% alcohols were present in bio-oil. This promising deoxygenation activity can be ascribed to Cu-zeolite's catalytic activity that converted phenol and alcohols to refinable hydrocarbons via various reactions, such as dehydration, decarboxylation and decarbonylation.

KW - Bio-oil upgrading

KW - Catalytic pyrolysis

KW - Cu-zeolite

KW - Pine wood

UR - http://www.scopus.com/inward/record.url?scp=85063798781&partnerID=8YFLogxK

U2 - 10.1016/j.egypro.2019.02.135

DO - 10.1016/j.egypro.2019.02.135

M3 - Conference paper

VL - 160

SP - 186

EP - 193

JO - Energy Procedia

T2 - Energy Procedia

JF - Energy Procedia

SN - 1876-6102

ER -