Bio-Oil Heavy Fraction as a Feedstock for Hydrogen Generation via Chemical Looping Process: Reactor Design and Hydrodynamic Analysis
-
Dewang Zeng
,
Shuai Zhang
Abstract
Chemical looping of bio-oil is a promising route to convert this low-quality fuel to pure hydrogen with inherent gas separation and low energy penalty. By taking account of the compatibility of the oil gasification and chemical looping reactions, we design and built a novel dual fluidized bed in this work. Currently, the hydrodynamic analysis was conducted to gain some running experience and explore the optimal operating parameters. The effect of the gas velocities, particle sizes and total bed inventories on the solid flux and gas leakage were investigated. The results showed that the gas velocities of both two reactors played a positive effect on the solid flux and varying the fuel reactor gas velocity can be used as an efficient way to adjust the system solid flux. Based on a gas tracing method, the gas leakage test was performed and the results indicated that hydrogen purity could be enhanced by decreasing FR, loop seal gas flow rates and adding more bed material.
Funding statement: The National Science Foundation for Distinguished Young Scholars of China (Grant No. 51525601), the National Natural Science Foundation of China (Grant No. 51476035), and the Scientific Research Foundation of Graduate School of Southeast University (Grant No.YBJJ1609) are sincerely acknowledged for the financial support of this project.
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