Microalgae bio-oil production by pyrolysis and hydrothermal liquefaction: Mechanism and characteristics

Ümit Ağbulut; Ranjna Sirohi; Eric Lichtfouse; Wei Hsin Chen; Christophe Len; Pau Loke Show; Anh Tuan Le; Xuan Phuong Nguyen; Anh Tuan Hoang

doi:10.1016/j.biortech.2023.128860

Microalgae bio-oil production by pyrolysis and hydrothermal liquefaction: Mechanism and characteristics

Ümit Ağbulut
, Ranjna Sirohi
, Eric Lichtfouse
, Wei Hsin Chen
, Christophe Len
, Pau Loke Show
, Anh Tuan Le
, Xuan Phuong Nguyen
, Anh Tuan Hoang

Duzce University
University of Petroleum & Energy Studies
State Key Laboratory of Multiphase Flow in Power Engineering
Department of Aeronautics and Astronautics
National Cheng Kung University
Research Center for Smart Sustainable Circular Economy
Tunghai University
Department of Mechanical Engineering
National Chin-Yi University of Technology
Université PSL
Department of Chemical Engineering
Wenzhou University
Department of Chemical and Environmental Engineering
University of Nottingham Malaysia
Department of Sustainable Engineering
Saveetha School of Engineering
University of Science and Technology of Hanoi
Ho Chi Minh City University of Transport
Ho Chi Minh city University of Technology (HUTECH)

Research output: Contribution to journal › Review article › peer-review

102 Scopus citations

Abstract

Microalgae have great potential in producing energy-dense and valuable products via thermochemical processes. Therefore, producing alternative bio-oil to fossil fuel from microalgae has rapidly gained popularity due to its environmentally friendly process and elevated productivity. This current work aims to review comprehensively the microalgae bio-oil production using pyrolysis and hydrothermal liquefaction. In addition, core mechanisms of pyrolysis and hydrothermal liquefaction process for microalgae were scrutinized, showing that the presence of lipids and proteins could contribute to forming a large amount of compounds containing O and N elements in bio-oil. However, applying proper catalysts and advanced technologies for the two aforementioned approaches could improve the quality, heating value, and yield of microalgae bio-oil. In general, microalgae bio-oil produced under optimal conditions could have 46 MJ/kg heating value and 60% yield, indicating that microalgae bio-oil could become a promising alternative fuel for transportation and power generation.

Original language	British English
Article number	128860
Journal	Bioresource Technology
Volume	376
DOIs	https://doi.org/10.1016/j.biortech.2023.128860
State	Published - May 2023

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Bio-oil
Circular economy
Microalgae
Sustainable biofuels
Thermochemical conversion

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10.1016/j.biortech.2023.128860

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title = "Microalgae bio-oil production by pyrolysis and hydrothermal liquefaction: Mechanism and characteristics",

abstract = "Microalgae have great potential in producing energy-dense and valuable products via thermochemical processes. Therefore, producing alternative bio-oil to fossil fuel from microalgae has rapidly gained popularity due to its environmentally friendly process and elevated productivity. This current work aims to review comprehensively the microalgae bio-oil production using pyrolysis and hydrothermal liquefaction. In addition, core mechanisms of pyrolysis and hydrothermal liquefaction process for microalgae were scrutinized, showing that the presence of lipids and proteins could contribute to forming a large amount of compounds containing O and N elements in bio-oil. However, applying proper catalysts and advanced technologies for the two aforementioned approaches could improve the quality, heating value, and yield of microalgae bio-oil. In general, microalgae bio-oil produced under optimal conditions could have 46 MJ/kg heating value and 60\% yield, indicating that microalgae bio-oil could become a promising alternative fuel for transportation and power generation.",

keywords = "Bio-oil, Circular economy, Microalgae, Sustainable biofuels, Thermochemical conversion",

author = "{\"U}mit Ağbulut and Ranjna Sirohi and Eric Lichtfouse and Chen, \{Wei Hsin\} and Christophe Len and Show, \{Pau Loke\} and Le, \{Anh Tuan\} and Nguyen, \{Xuan Phuong\} and Hoang, \{Anh Tuan\}",

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year = "2023",

month = may,

doi = "10.1016/j.biortech.2023.128860",

language = "British English",

volume = "376",

journal = "Bioresource Technology",

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TY - JOUR

T1 - Microalgae bio-oil production by pyrolysis and hydrothermal liquefaction

T2 - Mechanism and characteristics

AU - Ağbulut, Ümit

AU - Sirohi, Ranjna

AU - Lichtfouse, Eric

AU - Chen, Wei Hsin

AU - Len, Christophe

AU - Show, Pau Loke

AU - Le, Anh Tuan

AU - Nguyen, Xuan Phuong

AU - Hoang, Anh Tuan

PY - 2023/5

Y1 - 2023/5

N2 - Microalgae have great potential in producing energy-dense and valuable products via thermochemical processes. Therefore, producing alternative bio-oil to fossil fuel from microalgae has rapidly gained popularity due to its environmentally friendly process and elevated productivity. This current work aims to review comprehensively the microalgae bio-oil production using pyrolysis and hydrothermal liquefaction. In addition, core mechanisms of pyrolysis and hydrothermal liquefaction process for microalgae were scrutinized, showing that the presence of lipids and proteins could contribute to forming a large amount of compounds containing O and N elements in bio-oil. However, applying proper catalysts and advanced technologies for the two aforementioned approaches could improve the quality, heating value, and yield of microalgae bio-oil. In general, microalgae bio-oil produced under optimal conditions could have 46 MJ/kg heating value and 60% yield, indicating that microalgae bio-oil could become a promising alternative fuel for transportation and power generation.

AB - Microalgae have great potential in producing energy-dense and valuable products via thermochemical processes. Therefore, producing alternative bio-oil to fossil fuel from microalgae has rapidly gained popularity due to its environmentally friendly process and elevated productivity. This current work aims to review comprehensively the microalgae bio-oil production using pyrolysis and hydrothermal liquefaction. In addition, core mechanisms of pyrolysis and hydrothermal liquefaction process for microalgae were scrutinized, showing that the presence of lipids and proteins could contribute to forming a large amount of compounds containing O and N elements in bio-oil. However, applying proper catalysts and advanced technologies for the two aforementioned approaches could improve the quality, heating value, and yield of microalgae bio-oil. In general, microalgae bio-oil produced under optimal conditions could have 46 MJ/kg heating value and 60% yield, indicating that microalgae bio-oil could become a promising alternative fuel for transportation and power generation.

KW - Bio-oil

KW - Circular economy

KW - Microalgae

KW - Sustainable biofuels

KW - Thermochemical conversion

UR - https://www.scopus.com/pages/publications/85150209797

U2 - 10.1016/j.biortech.2023.128860

DO - 10.1016/j.biortech.2023.128860

M3 - Review article

C2 - 36907228

AN - SCOPUS:85150209797

SN - 0960-8524

VL - 376

JO - Bioresource Technology

JF - Bioresource Technology

M1 - 128860

ER -

Microalgae bio-oil production by pyrolysis and hydrothermal liquefaction: Mechanism and characteristics

Abstract

UN SDGs

Keywords

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