发布时间：

2026-09-18

论文名称：

Microwave-assisted pyrolysis of plastic waste into hydrogen over Fe/Beta catalysts

发表刊物：

International Journal of Hydrogen Energy

摘要：

Converting waste plastics into hydrogen represents a pioneering strategy to address both plastic pollution and energy challenges. In this study, low-density polyethylene (LDPE) was efficiently converted into hydrogen over a Fe/Beta catalyst in 3 min using microwave-assisted catalytic pyrolysis. The optimal 10Fe/Beta catalyst yields 81.0 wt% gas with hydrogen selectivity of 84.3% at 500 °C. Structural analysis revealed that the 10Fe/Beta catalyst possessed a specific surface area of 377.4 m2/g, uniformly dispersed Fe species, and an optimal Brønsted/Lewis (B/L) acid ratio of 0.84. This superior performance is attributed to the uniform dispersion of Fe species and appropriate ratio of B/L acid active sites of the Fe/Beta catalyst, meanwhile, microwave fields could effectually activate iron-based active sites, which substantially enhanced dehydrogenation efficiency through cleavage of C–H bonds in LDPE. Life cycle assessment (LCA) revealed that microwave-assisted catalytic pyrolysis reduced global warming potential (GWP) by 93.6%-97.7% compared to conventional catalytic pyrolysis. Sensitivity analysis revealed that electricity consumption (77.6%) was critical to further maximizing the environmental benefits. As a result, microwave-assisted catalytic pyrolysis provided an effective pathway for achieving hydrogen supply and tackling white pollution.

合写作者：

Youjing Tu, Xingyu Zhang, Aoyi Tang, Yao Zhang, Ze Song, Yuanyuan Cheng, Pengjie Miao, Yang Guo（通讯作者）, Lingzhao Kong

学科门类：

工学

文献类型：

J

卷号：

223

页面范围：

154227

是否译文：

否

发表时间：

2026-04-07

收录刊物：

SCI