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 |
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Pages (from-to) | 452-459 |
Number of pages | 8 |
Journal | Bioresource Technology |
Volume | 191 |
DOIs | |
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