Hydrothermal liquefaction of microalgae's for bio oil production

Saqib Toor, Harvind Reddy, Shuguang Deng, Jessica Hoffmann, Jens Bo Holm-Nielsen, Lasse Rosendahl

Research output: Contribution to conference without publisher/journalPaper without publisher/journalResearch


Hydrothermal liquefaction experiments on Nannochloropsis salina and Spirulina platensis at subcritical and supercritical water conditions were carried out to explore the feasibility of extracting lipids from wet algae, preserving nutrients in lipid-extracted algae solid residue, and recycling process water for algae cultivation. GC-MS, elemental analyzer, calorimeter and nutrient analysis were used to analyze bio-crude, lipid-extracted algae and water samples produced in the hydrothermal liquefaction process. The highest bio-oil yield of 46% was obtained on Nannochloropsis salina at 310 °C and 107 bar. For Spirulina platensis algae sample, the highest bio-oil yield is 38% at 350 °C and 195 bar. Preliminary data also indicate that a lipid-extracted algae solid residue sample obtained in the hydrothermal liquefaction process contains a high level of proteins
Original languageEnglish
Publication date2013
Number of pages17
Publication statusPublished - 2013
EventINTERNATIONAL ALGAE CONFERENCE: On Innovation Sequestration And Biological Production - Hotel Maribo Søpark, Maribo, Lolland, Denmark
Duration: 10 Jun 201311 Jun 2013
Conference number: 1


LocationHotel Maribo Søpark
CityMaribo, Lolland


  • Hydrothermal liquefaction
  • Bio-oil
  • Nannochloropsis Salina
  • Spirulina


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