Bio-aromatics synthesis via catalytic pyrolysis of cellulose with lithium-ion battery cathodes and modified HZSM-5 coupled in-situ plasma mode

Yongsheng Fan, Jiaheng Yang, Anjun Xu, Jinjiao Zhu and Yunxi Shi

Renewable Energy, 2024, vol. 226, issue C

Abstract: This work proposed a novel method based on in-situ plasma mode to synthetize bio-aromatics from cellulose co-pyrolyzed with lithium-ion battery cathodes and tandem catalyzed by modified HZSM-5. Ni and Ti modified HZSM-5 were compared in the catalytic pyrolysis of cellulose without cathode conditions, and then cellulose was co-pyrolyzed with cathodes (LCO, LMO and LNCM). The results showed that modified-zeolites improved the upgrading of pyrolysis products, producing more refined bio-oils, and Ti-modified version was superior, while cellulose co-pyrolyzed with cathodes decreased the residual char and catalyst deposits to increase refined bio-oil. When using LNCM, the refined bio-oil yield reached 38.80%, attributing to the catalytic effect of cathodes, enhanced thermal conductivity, and micro lithium-ion battery effect. The application of cathodes and modified zeolites enhanced the conversion of furans, greatly elevating the MAHs selectivity; herein, Ni-modified version increased PAHs. After using LNCM, the selectivity of MAHs reached 77.67% (mainly C8 hydrocarbons), C10 and above hydrocarbons were suppressed, which was possibly attributed to enhanced gas-phase reactions. Abundant free radical reactions and higher cracking capability enabled coking to initially occur inside, and using LNCM decreased the catalyst coke content by approximately 80%. Co-pyrolysis with cathodes caused the surface coke to transform from filament-like to amorphous.

Keywords: Cellulose; Catalytic pyrolysis; Lithium-ion battery cathode; Modified HZSM-5; Non-thermal plasma (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:226:y:2024:i:c:s0960148124004944

DOI: 10.1016/j.renene.2024.120429

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