Upgrading of crude algal bio-oil in supercritical water
Abstract
We determined the influence of a Pt/C catalyst, high-pressure H2, and pH on the upgrading of a crude algal bio-oil in supercritical water (SCW). The SCW treatment led to a product oil with a higher heating value (∼42 MJ/kg) and lower acid number than the crude bio-oil. The product oil was also lower in O and N and essentially free of sulfur. Including the Pt/C catalyst in the reactor led to a freely flowing liquid product oil with a high abundance of hydrocarbons. Overall, many of the properties of the upgraded oil obtained from catalytic treatment in SCW are similar to those of hydrocarbon fuels derived from fossil fuel resources. Thus, this work shows that the crude bio-oil from hydrothermal liquefaction of a microalga can be effectively upgraded in supercritical water in the presence of a Pt/C catalyst.
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Savage P. E. and Duan P. G. are strongly related due to other papers elaborated in co-authorship.
“Moreover, both authors are strongly related due to other papers elaborated in co-authorship [49–52] as shown in Fig. 5”
From Research Progress, Trends, and Future Prospects on Hydrothermal Liquefaction of Algae for Biocrude Production: A Bibliometric Analysis (2024) · cites this paper as [52]
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References 26 · Cited by 302
- Authors
- Duan, P., & Savage, P. E.
- Affiliations
- University of Michigan (US)
- Corresponding author
- Savage, Phillip E.
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2011-01
- Volume
- 102
- Issue
- 2
- Pages
- 1899-1906
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W2146012611
- Cited by
- 302
- References
- 26
- Citations by year
- 2026: 13 · 2025: 11 · 2024: 9 · 2023: 15 · 2022: 18 · 2021: 27 · 2020: 18 · 2019: 21 · 2018: 21 · 2017: 22 · 2016: 24 · 2015: 30 · 2014: 22 · 2013: 23 · 2012: 17
- FWCI
- 9.65
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Bioresource Technology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- University of Michigan
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Subcritical and Supercritical Water Processes
- Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
- Physical Sciences › Engineering › Mechanical Engineering › Catalysis and Hydrodesulfurization Studies
- Keywords
- supercritical water, Pt/C catalyst, hydrothermal liquefaction, microalgae, catalytic upgrading, high-pressure hydrogen, pH effect, hydrocarbon fuels, calorific value, acid value, desulfurization
- MeSH terms
- Acids, Elements, Gases, Magnetic Resonance Spectroscopy, Oils, Petroleum, Thermodynamics, Water, Spectroscopy, Fourier Transform Infrared, Bioreactors, Biofuels, Microalgae
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