Catalytic Fast Pyrolysis of Tulip Tree (Liriodendron) for Upgrading Bio-oil in a Bubbling Fluidized Bed Reactor 


Vol. 26,  No. 1, pp. 79-87, Mar.  2020
10.7464/ksct.2020.26.1.79


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  Abstract

The bio-oil produced from the fast pyrolysis of lignocellulosic biomass contains a high amount of oxygenates, causing variation in the properties of bio-oil, such as instability, high acidity, and low heating value, reducing the quality of the bio-oil. Consequently, an upgrading process should be recommended ensuring that these bio-oils are widely used as fuel sources. Catalytic fast pyrolysis has attracted a great deal of attention as a promising method for producing upgraded bio-oil from biomass feedstock. In this study, the fast pyrolysis of tulip tree was performed in a bubbling fluidized-bed reactor under different reaction temperatures, with and without catalysts, to investigate the effects of pyrolysis temperature and catalysts on product yield and bio-oil quality. The system used silica sand, ferric oxides (Fe2O3 and Fe3O4), and H-ZSM-5 as the fluidized-bed material and nitrogen as the fluidizing medium. The liquid yield reached the highest value of 49.96 wt% at 450 ℃, using Fe2O3 catalyst, compared to 48.45 wt% for H-ZSM-5, 47.57 wt% for Fe3O4 and 49.03 wt% with sand. Catalysts rejected oxygen mostly as water and produced a lower amount of CO and CO2, but a higher amount of H2 and hydrocarbon gases. The catalytic fast pyrolysis showed a high ratio of H2/CO than sand as a bed material.

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  Cite this article

[IEEE Style]

L. HV, K. JS, K. SS, W. HC, C. SS, "Catalytic Fast Pyrolysis of Tulip Tree (Liriodendron) for Upgrading Bio-oil in a Bubbling Fluidized Bed Reactor," Clean Technology, vol. 26, no. 1, pp. 79-87, 2020. DOI: 10.7464/ksct.2020.26.1.79.

[ACM Style]

Ly HV, Kim JS, Kim SS, Woo HC, and Choi SS. 2020. Catalytic Fast Pyrolysis of Tulip Tree (Liriodendron) for Upgrading Bio-oil in a Bubbling Fluidized Bed Reactor. Clean Technology, 26, 1, (2020), 79-87. DOI: 10.7464/ksct.2020.26.1.79.

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