Catalytic gasification of oil-extracted residue biomass of Botryococcus braunii

Hideo Watanabe; Dalin Li; Yoshinao Nakagawa; Keiichi Tomishige; Makoto M. Watanabe

doi:10.1016/j.biortech.2015.03.034

Catalytic gasification of oil-extracted residue biomass of Botryococcus braunii

Hideo Watanabe, Dalin Li, Yoshinao Nakagawa, Keiichi Tomishige, Makoto M. Watanabe

ENG - Applied Chemistry

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

Abstract

Catalytic gasification of the oil-extracted residue biomass of Botryococcus braunii was demonstrated in a laboratory-scale continuous feeding dual bed reactor. Steam gasification at 1023 K over Ni-Fe/Mg/Al catalyst can completely reform tar derived from pyrolysis of the residue biomass into C1 gases and hydrogen, and has achieved 91%-C conversion to gaseous product (CO + CO₂ + CH₄). Composition of product gas has higher contents of CO and H₂ with their ratio (H₂/CO) of around 2.4 which is slightly H₂-rich syngas. Maximum hydrogen yield of 74.7 mmol g-biomass^-1 obtained in this work is much higher than that from gasification of other algal biomass reported in literature. The residue biomass of B. braunii can be a superior renewable source of syngas or hydrogen.

Original language	English
Pages (from-to)	452-459
Number of pages	8
Journal	Bioresource Technology
Volume	191
DOIs	https://doi.org/10.1016/j.biortech.2015.03.034
Publication status	Published - 2015 Jul 28

Keywords

Algal biomass
Botryococcus braunii
Ni-Fe catalyst
Oil-extracted residue
Steam gasification

ASJC Scopus subject areas

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

UN SDGs

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

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10.1016/j.biortech.2015.03.034

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title = "Catalytic gasification of oil-extracted residue biomass of Botryococcus braunii",

abstract = "Catalytic gasification of the oil-extracted residue biomass of Botryococcus braunii was demonstrated in a laboratory-scale continuous feeding dual bed reactor. Steam gasification at 1023 K over Ni-Fe/Mg/Al catalyst can completely reform tar derived from pyrolysis of the residue biomass into C1 gases and hydrogen, and has achieved 91%-C conversion to gaseous product (CO + CO2 + CH4). Composition of product gas has higher contents of CO and H2 with their ratio (H2/CO) of around 2.4 which is slightly H2-rich syngas. Maximum hydrogen yield of 74.7 mmol g-biomass-1 obtained in this work is much higher than that from gasification of other algal biomass reported in literature. The residue biomass of B. braunii can be a superior renewable source of syngas or hydrogen.",

keywords = "Algal biomass, Botryococcus braunii, Ni-Fe catalyst, Oil-extracted residue, Steam gasification",

author = "Hideo Watanabe and Dalin Li and Yoshinao Nakagawa and Keiichi Tomishige and Watanabe, {Makoto M.}",

note = "Funding Information: This work was supported by the project of Next-generation Energies for Tohoku Recovery. The authors are grateful to the Chemical Analysis Center, University of Tsukuba, for conducting CHN elemental analysis. Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

year = "2015",

month = jul,

day = "28",

doi = "10.1016/j.biortech.2015.03.034",

language = "English",

volume = "191",

pages = "452--459",

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AU - Watanabe, Hideo

AU - Li, Dalin

AU - Nakagawa, Yoshinao

AU - Tomishige, Keiichi

AU - Watanabe, Makoto M.

N1 - Funding Information: This work was supported by the project of Next-generation Energies for Tohoku Recovery. The authors are grateful to the Chemical Analysis Center, University of Tsukuba, for conducting CHN elemental analysis. Publisher Copyright: © 2015 Elsevier Ltd.

PY - 2015/7/28

Y1 - 2015/7/28

N2 - Catalytic gasification of the oil-extracted residue biomass of Botryococcus braunii was demonstrated in a laboratory-scale continuous feeding dual bed reactor. Steam gasification at 1023 K over Ni-Fe/Mg/Al catalyst can completely reform tar derived from pyrolysis of the residue biomass into C1 gases and hydrogen, and has achieved 91%-C conversion to gaseous product (CO + CO2 + CH4). Composition of product gas has higher contents of CO and H2 with their ratio (H2/CO) of around 2.4 which is slightly H2-rich syngas. Maximum hydrogen yield of 74.7 mmol g-biomass-1 obtained in this work is much higher than that from gasification of other algal biomass reported in literature. The residue biomass of B. braunii can be a superior renewable source of syngas or hydrogen.

AB - Catalytic gasification of the oil-extracted residue biomass of Botryococcus braunii was demonstrated in a laboratory-scale continuous feeding dual bed reactor. Steam gasification at 1023 K over Ni-Fe/Mg/Al catalyst can completely reform tar derived from pyrolysis of the residue biomass into C1 gases and hydrogen, and has achieved 91%-C conversion to gaseous product (CO + CO2 + CH4). Composition of product gas has higher contents of CO and H2 with their ratio (H2/CO) of around 2.4 which is slightly H2-rich syngas. Maximum hydrogen yield of 74.7 mmol g-biomass-1 obtained in this work is much higher than that from gasification of other algal biomass reported in literature. The residue biomass of B. braunii can be a superior renewable source of syngas or hydrogen.

KW - Algal biomass

KW - Botryococcus braunii

KW - Ni-Fe catalyst

KW - Oil-extracted residue

KW - Steam gasification

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VL - 191

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JO - Agricultural Wastes

JF - Agricultural Wastes

SN - 0960-8524

ER -

Catalytic gasification of oil-extracted residue biomass of Botryococcus braunii

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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