PETROLEUM PROCESSING AND PETROCHEMICALS ›› 2024, Vol. 55 ›› Issue (11): 162-170.

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PROGRESS ON THE PREPARATION AND PROPERTIES OF BIO-ASPHALT

  


  • Received:2024-01-26 Revised:2024-07-02 Online:2024-11-12 Published:2024-10-29

Abstract: Due to the limitation of petroleum asphalt supply and environmental protection considerations, the development of environmental-friendly renewable bio-asphalt has gradually become a hot spot. The kinds of biomass raw materials and the refining methods of biomass heavy oil(bio-oil) have a great impact on the performance of bio-asphalt. At the same time, the poor performance of bio-asphalt which is easy to age at high temperatures and embrittle at low temperatures limits its wide application. Therefore, it is of great significance to investigate the source, composition, structure and performance characteristics of bio-asphalt, and to select appropriate methods to modify bio-asphalt for the development of high-performance bio-asphalt. Based on this, the preparation process, composition and performance characteristics of bio-oil and bio-asphalt were comprehensively expounded and analyzed from the aspects of the refining process of bio-oil and the preparation characteristics of bio-asphalt. The modification method and mechanism of bio-asphalt were deeply summarized in order to provide a reference for the development of bio-asphalt modification technology and the wide application of bio-asphalt.

Key words: bio-asphalt, bio-oil, natural fiber, polymer, nanomaterials