氢解
聚烯烃
异构化
双功能
催化作用
脱氢
有机化学
化学
汽油
材料科学
高分子化学
图层(电子)
作者
Bowen Du,Xiao Chen,Yu Ling,Tiantian Niu,Weixiang Guan,Jipeng Meng,Haoquan Hu,Chi‐Wing Tsang,Changhai Liang
出处
期刊:Chemsuschem
[Wiley]
日期:2022-12-08
卷期号:16 (3)
被引量:16
标识
DOI:10.1002/cssc.202202035
摘要
Upcycling of waste polyolefin plastics still meets with economic and technological challenges in practice. In this work, the catalytic hydrogenolysis-isomerization of nondegradable polyolefin plastic waste to high-value gasoline, diesel, and light lubricants with highly branched chain is achieved over a bifunctional Rh/Nb2 O5 catalyst under relatively mild conditions. Owing to the high efficiency of metallic Rh active sites, the dehydrogenation/hydrogenation of long carbon chains of polyolefins is enhanced. With the assistance of strong Brønsted acidity of Nb2 O5 , the cleavage of C-C bonds, skeletal rearrangements, as well as the β-scission of alkylcarbenium ions occurs, which boosts the one-step solvent-free catalytic hydrogenolysis and isomerization of polyolefins. In addition, the preliminary economic analysis shows that this technology is economical, feasible, and has great potential in accelerating the transition to a circular plastics economy for sustainable development.
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