Effect of ultrasonic pretreatment on the properties of bio-oil

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

This study focuses on the ultrasonic pretreatment of bio-oil produced from the hydrothermal liquefaction (HTL) of microalgae. Ultrasonic pretreatment would increase the viscosity of the bio-oil. Time was the most influential factor affecting the viscosity of the bio-oil and increasing the time significantly increased the viscosity of the bio-oil. Ultrasonic pretreatment could increase the H/C molar ratio of the bio-oil. Ultrasonic frequency has little effect on the properties of the bio-oil. Basically, the pretreated bio-oil produced at a higher temperature, longer reaction time, higher frequency, and higher power contained lower N. However, contrary results were observed for the O content.

Original languageEnglish
Pages (from-to)941-945
Number of pages5
JournalEnergy Sources, Part A: Recovery, Utilization and Environmental Effects
Volume39
Issue number9
DOIs
StatePublished - 3 May 2017
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Bio-oil
  • hydrothermal liquefaction
  • microalgae
  • pretreatment
  • ultrasound

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