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Author(s): |
Xin Wang, Department of Thermal Energy Engineering, Beihang University, 37 Xueyuan Rd., Haidian District, Beijing, China
Xiaoyi Yang, Department of Thermal Energy Engineering, Beihang University, 37 Xueyuan Rd., Haidian District, Beijing, China |
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Abstract: |
In this paper, a review is provided on reactor types and heating methods for biomass low temperature pyrolysis to oil. Fluidized bed reactors have been widely used in biomass pyrolysis with no mobile parts and less wear-and-tear, in spite of the decrease of the heat value of pyrolysis gas and a complex separation equipment after the pyrolysis reactor. Mechanical-contact reactors produced a pyrolysis gas with higher heat value but more wear-and-tear in rotating parts. Mechanical-contact reactors including rotating cone reactor, ablative coil reactor, vertical mixing reactor and rotary kiln reactor have been discussed in detail. Moreover, the vacuum pyrolysis reactor and Enersludge process were also analyzed. The heating modes by infrared-wave or microwave are still in lab-scale research stage and have not been reported in practical use.
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