Co-pyrolysis of microalgae and other biomass wastes for the production of high-quality bio-oil: Progress and prospective

Guangcan Su, Hwai Chyuan Ong, Yong Yang Gan, Wei Hsin Chen, Cheng Tung Chong, Yong Sik Ok

Research output: Contribution to journalReview articlepeer-review

53 Citations (Scopus)


Microalgae are the most prospective raw materials for the production of biofuels, pyrolysis is an effective method to convert biomass into bioenergy. However, biofuels derived from the pyrolysis of microalgae exhibit poor fuel properties due to high content of moisture and protein. Co-pyrolysis is a simple and efficient method to produce high-quality bio-oil from two or more materials. Tires, plastics, and bamboo waste are the optimal co-feedstocks based on the improvement of yield and quality of bio-oil. Moreover, adding catalysts, especially CaO and Cu/HZSM-5, can enhance the quality of bio-oil by increasing aromatics content and decreasing oxygenated and nitrogenous compounds. Consequently, this paper provides a critical review of the production of bio-oil from co-pyrolysis of microalgae with other biomass wastes. Meanwhile, the underlying mechanism of synergistic effects and the catalytic effect on co-pyrolysis are discussed. Finally, the economic viability and prospects of microalgae co-pyrolysis are summarized.

Original languageEnglish
Article number126096
JournalBioresource technology
Publication statusPublished - 2022 Jan

Bibliographical note

Publisher Copyright:
© 2021 Elsevier Ltd


  • Biofuels
  • Catalytic effect
  • Co-pyrolysis
  • Environmental sustainability
  • Microalgae

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal


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