Quantitative Multiphase Model for Hydrothermal Liquefaction of Algal Biomass

Timothy Strathmann, Yalin Li, Shijie Leow, Anna Fedders, Brajendra Sharma, Jeremy Guest

Research output: Contribution to journalArticlepeer-review

93 Scopus Citations


Optimized incorporation of hydrothermal liquefaction (HTL, reaction in water at elevated temperature and pressure) within an integrated biorefinery requires accurate models to predict the quantity and quality of all HTL products. Existing models primarily focus on biocrude product yields with limited consideration for biocrude quality and aqueous, gas, and biochar co-products, and have not been validated with an extensive collection of feedstocks. In this study, HTL experiments (300 degrees C, 30 min) were conducted using 24 different batches of microalgae feedstocks with distinctive feedstock properties, which resulted in a wide range of biocrude (21.3-54.3 dry weight basis, dw%), aqueous (4.6-31.2 dw%), gas (7.1-35.6 dw%), and biochar (1.3-35.0 dw%) yields.
Original languageAmerican English
Pages (from-to)1163-1174
Number of pages12
JournalGreen Chemistry
Issue number4
StatePublished - 2017

NREL Publication Number

  • NREL/JA-5100-68260


  • biochar
  • biocrude
  • gas
  • HTL
  • hydrothermal liquefaction
  • microalgae feedstocks


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