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Catalytic Hydrodeoxygenation of Fast Pyrolysis Bio-Oil from Saccharina japonica Alga for Bio-Oil Upgrading
- Source :
- Catalysts; Volume 9; Issue 12; Pages: 1043
- Publication Year :
- 2019
- Publisher :
- Multidisciplinary Digital Publishing Institute, 2019.
-
Abstract
- Biomass conversion via pyrolysis has been regarded as a promising solution for bio-oil production. Compared to fossil fuels, however, the pyrolysis bio-oils from biomass are corrosive and unstable due to relatively high oxygen content. Thus, an upgrading of bio-oil is required to reduce O component while improving stability in order to use it directly as fuel sources or in industrial processes for synthesizing chemicals. The catalytic hydrodeoxygenation (HDO) is considered as one of the promising methods for upgrading pyrolysis bio-oil. In this research, the HDO was studied for various catalysts (HZSM-5, metal, and metal-phosphide catalysts) to improve the quality of bio-oil produced by fast pyrolysis of Saccharina japonica (SJ) in a fluidized-bed reactor. The HDO processing was carried out in an autoclave at 350 °C and different initial pressures (3, 6, and 15 bar). During HDO, the oxygen species in the bio-oil was removed primarily via formation of CO2 and H2O. Among the gases produced through HDO, CO2 was observed to be most abundant. The C/O ratio of produced bio-oil increased when CoMoP/γ-Al2O3, Co/γ-Al2O3, Fe/γ-Al2O3, or HZSM-5 was used. The Co/γ-Al2O3 resulted in higher HDO performance than other catalysts. The bio-oil upgraded with Co/γ-Al2O3 showed high HHV (34.41 MJ/kg). With the use of catalysts, the kerosene-diesel fraction (carbon number C12–C14) was increased from 36.17 to 38.62–48.92 wt.%.
- Subjects :
- biology
business.industry
Chemistry
020209 energy
Fossil fuel
Biomass
Fraction (chemistry)
02 engineering and technology
Saccharina japonica
021001 nanoscience & nanotechnology
biology.organism_classification
Catalysis
Autoclave
S. japonica alga
fast pyrolysis
upgrading bio-oil
catalytic hydrodeoxygenation
autoclave
Chemical engineering
0202 electrical engineering, electronic engineering, information engineering
Physical and Theoretical Chemistry
0210 nano-technology
business
Pyrolysis
Hydrodeoxygenation
Subjects
Details
- Language :
- English
- ISSN :
- 20734344
- Database :
- OpenAIRE
- Journal :
- Catalysts; Volume 9; Issue 12; Pages: 1043
- Accession number :
- edsair.doi.dedup.....610ca507bd841c5023774a8b5da6e46d
- Full Text :
- https://doi.org/10.3390/catal9121043