Co-pyrolysis of microalgae and other biomass wastes for the production of high-quality bio-oil: Progress and prospective. (January 2022)

• Record Type: Journal Article
• Authors: Su, Guangcan; Ong, Hwai Chyuan; Gan, Yong Yang; Chen, Wei-Hsin; Chong, Cheng Tung; Ok, Yong Sik
• Is Part Of: Bioresource technology. Volume 344:Part B(2022)
• Publication Date: 2022-01
• Subjects: Microalgae -- Biofuels -- Co-pyrolysis -- Catalytic effect -- Environmental sustainability; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2021.126096
• Languages: English
• ISSNs: 0960-8524

Abstract

Graphical abstract: Highlights: Synergistic effects of microalgae co-pyrolysis has been critically analyzed. Co-pyrolysis enhances the overall pyrolysis performance and bio-oil properties. CaO and Cu/HZSM-5 promote the quality of bio-oil effectively. Co-pyrolysis of microalgae and other biomass wastes is economic and feasible. Abstract: 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.