Optimized production of aromatic hydrocarbons via corn stover pyrolysis: Utilizing high-density polyethylene as a hydrogen donor and red mud as a catalyst

文献类型： 外文期刊

第一作者： Ran, Linghao

作者： Ran, Linghao;Zhang, Xiaorong;Zhang, Andong;Qi, Shengtao;Huang, Xinfeng;Yi, Weiming;Li, Zhihe;Zhang, Deli;Wang, Lihong;Ran, Linghao;Zhang, Xiaorong;Zhang, Andong;Qi, Shengtao;Huang, Xinfeng;Yi, Weiming;Li, Zhihe;Zhang, Deli;Wang, Lihong;Ran, Linghao;Zhang, Xiaorong;Zhang, Andong;Qi, Shengtao;Huang, Xinfeng;Yi, Weiming;Li, Zhihe;Zhang, Deli;Wang, Lihong;Liu, Ziyun

作者机构：

关键词： Waste plastic; Biomass; Red Mud; Mono-aromatics; Catalytic co-pyrolysis

期刊名称：JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS （ 影响因子：6.2； 五年影响因子：6.4 ）

ISSN： 0165-2370

年卷期： 2024 年 182 卷

页码：

收录情况： SCI

摘要： Biomass pyrolysis offers a promising route for high-value bio-oil production, yet the process is limited by low deoxygenation efficiency. In this study, high-density polyethylene (HDPE) served as a hydrogen donor, and acidwashed red mud (ACRM) acted as a catalyst to enhance the pyrolysis of corn stover (CS) for producing monocyclic aromatic hydrocarbons (MAHs). The results showed that the addition of ACRM significantly reduced the activation energy for co-pyrolysis, enhanced the reaction rate, and strengthened the synergistic effects between CS and HDPE. Optimal conditions yielded a MAHs selectivity of 64.5 % at 650 degrees C with a CS: HDPE ratio of 1:1. However, excessively high temperatures facilitated the cyclization and polymerization of MAHs into polycyclic aromatic hydrocarbons, while a high HDPE ratio diminished the synergistic effects. Furthermore, recycling tests confirmed the effective reusability of ACRM, with MAHs yields remaining above 40 % after four cycles. This study highlights the potential for valorizing industrial and agricultural wastes.

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