Cited by 379Thermochemical Biomass Conversion ProcessesAlgal biology and biofuel productionAnaerobic Digestion and Biogas Production

Hydrothermal liquefaction of mixed-culture algal biomass from wastewater treatment system into bio-crude oil

Chen, Wan-Ting, Zhang, Yuanhui, Zhang, Jixiang, Yu, Guo, Schideman, Lance C., Zhang, Peng, Minarick, Mitchell·2014·Bioresource Technology

Abstract

In this study, a mixed-culture algal biomass harvested from a functioning wastewater treatment system (AW) was hydrothermally converted into bio-crude oils. The highest bio-crude oil yield (49% of volatile matter) and the highest energy recovery were obtained at 300 °C with 1 h retention time. The highest heating value of the bio-crude oil was 33.3 MJ/kg, produced at 320 °C and 1h retention time. Thermogravimetric analysis showed approximately 60% of the bio-crude oils were distilled in the range of 200-550 °C; and the solid residue might be suitable for use in asphalt. GC-MS results indicated that the bio-crude oil contained hydrocarbons and fatty acids, while the aqueous product was rich in organic acids and cyclic amines. The nitrogen recovery (NR) in the bio-crude oil ranged from 8.41% to 16.8%, which was lower than the typical range of 25%-53% from previous studies.

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Crossref · 10.1016/j.biortech.2013.10.111

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Authors
Chen, W.-T., Zhang, Y., Zhang, J., Yu, G., Schideman, L. C., Zhang, P., & Minarick, M.
Affiliations
University of Illinois Urbana-Champaign (US)
Corresponding author
Zhang, Yuanhui
Venue
Bioresource Technology
Publisher
Elsevier BV
Published
2014-01
Volume
152
Pages
130-139
ISSN
0960-8524 (ISSN-L)
OpenAlex
W2099465229
Cited by
379
References
32
Citations by year
2026: 12 · 2025: 34 · 2024: 21 · 2023: 25 · 2022: 40 · 2021: 55 · 2020: 47 · 2019: 30 · 2018: 33 · 2017: 30 · 2016: 18 · 2015: 21 · 2014: 13
FWCI
9.55
Type
journal article
Language
en
Open access
closed
Locations
  • Bioresource Technology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Ministry of Education
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
  • Physical Sciences › Engineering › Building and Construction › Anaerobic Digestion and Biogas Production
Keywords
hydrothermal liquefaction, algal biomass, sewage sludge, bio-crude oil, nitrogen recovery, calorific value, fatty acids, organic acids, cyclic amines, energy recovery
MeSH terms
Biodegradation, Environmental, Gas Chromatography-Mass Spectrometry, Nitrogen, Petroleum, Phosphorus, Solubility, Temperature, Thermogravimetry, Time Factors, Water, Water Purification, Biomass, Transition Temperature, Biofuels, Microalgae, Wastewater

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