标题: Balancing the Components of Biomass and the Reactivity of Pyrolysis Gas: Biomass-Assisted Recycling of Spent LiCoO₂ Batteries

作者: Zhou, FY (Zhou, Fengyin); Wang, HY (Wang, Hongya); Wang, SY (Wang, Shiyu); Zhao, JJ (Zhao, Jingjing); Qu, X (Qu, Xin); Wang, DF (Wang, Danfeng); Cai, YQ (Cai, Yuqi); Zheng, ZY (Zheng, Zhiyu); Wang, DH (Wang, Dihua); Yin, HY (Yin, Huayi)

来源出版物: ENVIRONMENTAL SCIENCE & TECHNOLOGY卷: 58期: 4页: 2102-2111 DOI: 10.1021/acs.est.3c07279出版年: JAN 18 2024

摘要: Waste biomass is one of the promising feedstocks to supply syngas that can be used as fuels, chemicals, reductants, etc. However, the relationship between the component of biomass and the constituent of pyrolysis gas remains unclear. Here, we study the pyrolysis behaviors of various biomasses and reveal the relationship between the biomass components and gas compositions. Further, different pyrolysis gases are applied for the reduction of spent lithium cobalt oxide (LiCoO2) below 500 C-degrees. The pyrolysis gas with a higher concentration of CO has a higher reductivity to convert LiCoO2 to CoO and Li2CO3 with a conversion rate close to 100% in 1 h at 500 C-degrees. The biomass rich in cellulose and with a lower content of lignin tends to produce pyrolysis gas with a high concentration of CO, which comes from the deliberate breakdown of carboxyl, carbonyl, ether, and ester linkages. Moreover, LiCoO2 exerts catalytic functions over the deoxygenation and enhancement of oxygenates and single-ring aromatics. Overall, this paper offers a tailored approach to regulating biomass pyrolysis gases, enabling highly efficient battery recycling and syngas production.

作者关键词: Spent lithium-ion battery; Biomass; Pyrolysisgas reduction; Cellulose; Hemicellulose; Lignin

地址: [Zhou, Fengyin; Wang, Hongya; Wang, Shiyu; Zhao, Jingjing; Qu, Xin; Wang, Danfeng; Cai, Yuqi; Zheng, Zhiyu; Wang, Dihua; Yin, Huayi] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Peoples R China.

[Wang, Dihua; Yin, Huayi] Hubei Int Sci & Technol Cooperat Base Sustainable, Wuhan 430072, Peoples R China.

[Wang, Dihua; Yin, Huayi] Hubei Prov Key Lab Biomass Resource Chem & Environ, Wuhan 430072, Peoples R China.

通讯作者地址: Yin, HY (通讯作者)，Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Peoples R China.

Yin, HY (通讯作者)，Hubei Int Sci & Technol Cooperat Base Sustainable, Wuhan 430072, Peoples R China.

Yin, HY (通讯作者)，Hubei Prov Key Lab Biomass Resource Chem & Environ, Wuhan 430072, Peoples R China.

电子邮件地址:yinhuayi@whu.edu.cn

影响因子：11.4