Tian, Hong, Zhu, Rui, Chen, Lei, Wang, Jiawei and Cheng, Yi (2023). Aromatic hydrocarbons rich bio-oil production from Miscanthus pyrolysis by coupling torrefaction and MoO3/ZSM-5 dual catalysis process. Industrial Crops and Products, 204 (Part A),
Abstract
The valorization of Miscanthus pyrolysis by coupling torrefaction and MoO3/ZSM-5 dual catalysis process was studied to generate the aromatic hydrocarbons rich bio-oil, biochar, and combustible gas. With the optimal conditions of torrefied Miscanthus at 280 °C, MoO3/ZSM-5 catalysis process converted 24.17 % bio-oil, 30.27 % biochar, and 45.56 % gas. The coupled system accessed bio-oil phase deoxygenation by reducing the oxygen-containing compound content to 6.27 %. The aromatic yield reached 91.38 %, with an outstanding benzene, toluene and xylene (BTX) selectivity of 52.24 %. Isolating investigations revealed that torrefaction declined the oxygen content of Miscanthus to 5.24 %, increasing their calorific value and promoting subsequent catalytic pyrolysis through deoxygenation. When only using the ZSM-5 catalyst, the increase in torrefaction temperature enhanced aromatic hydrocarbon compounds conversion in the bio-oil, leading to a boost in their content from 55.01 % to 75.97 %. Correspondingly, MoO3 promoted deoxygenation, decreased the ketone content from 40.4 % to 21.92 %, and inhibited the generation of aldehydes. The combination of MoO3 and ZSM-5 with torrefaction delivered a superimposed effect on yielding aromatic hydrocarbons and BTX, which allowed a promising product upgrading method for obtaining high-quality bio-oil.
Publication DOI: | https://doi.org/10.1016/j.indcrop.2023.117314 |
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Divisions: | College of Engineering & Physical Sciences > Energy and Bioproducts Research Institute (EBRI) College of Engineering & Physical Sciences > School of Infrastructure and Sustainable Engineering > Chemical Engineering & Applied Chemistry College of Engineering & Physical Sciences > Aston Advanced Materials |
Additional Information: | Crown Copyright © 2023 Published by Elsevier B.V. This is an open access article under the CC BY license (https://creativecommons.org/licenses/by/4.0/). |
Uncontrolled Keywords: | Miscanthus,Torrefaction pretreatment,Catalytic fast pyrolysis,Dual catalyst,Aromatic hydrocarbons |
Publication ISSN: | 1872-633X |
Last Modified: | 07 Oct 2024 07:50 |
Date Deposited: | 16 Aug 2023 15:55 |
Full Text Link: | |
Related URLs: |
https://www.sci ... 926669023010798
(Publisher URL) http://www.scop ... tnerID=8YFLogxK (Scopus URL) |
PURE Output Type: | Article |
Published Date: | 2023-11-15 |
Published Online Date: | 2023-08-16 |
Accepted Date: | 2023-08-11 |
Authors: |
Tian, Hong
Zhu, Rui Chen, Lei Wang, Jiawei ( 0000-0001-5690-9107) Cheng, Yi |