Abstract
Upgradation of pyrolysis oil is a key process to achieve high-quality biofuel. In this study, the effects of different Ar pressures and H2/Ar ratios in the presence and absence of catalysts on deoxygenation of pyrolysis oil were investigated by autoclaving. When the initial pressure of the reaction is 6MPa and without catalyst addition, the content of carboxylic acid decreases from 51.52 to 41.54%, whereas with the addition of catalyst (10 % Ni/C), the deoxygenation and hydrocarbon content in the product were significantly improved. Hence, 6 MPa was found to be optimum and above which failed to induce such useful changes but can lead to lower high heating value (HHV). However, the presence of hydrogen affects the content of alkanes and olefins in the product.
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Funding
China Postdoctoral Science Foundation (2019TQ0125)
The“333 project” in Jiangsu Province (BRA2019277)
The Six Talent Peaks Project in Jiangsu Province (XNY-007, 2018)
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All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by BL, QL, SZ, and BC. The first draft of the manuscript was written by CY. The idea, review, and editing were provided by YH. The financial support for the project was provided by SW. And all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Hu, Y., Yuan, C., Wang, S. et al. Study on pressurized upgradation of pyrolysis oil for high-value liquid products. Environ Sci Pollut Res 28, 62541–62548 (2021). https://doi.org/10.1007/s11356-021-14401-8
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DOI: https://doi.org/10.1007/s11356-021-14401-8