文献类型：期刊文献

英文题名：Jet fuel-range hydrocarbon production from catalytic pyrolysis of low-density polyethylene by metal-loaded activated carbon

作者：Li, Peng[1];Pan, Helin[1];Wan, Kun[1];Zhou, Shichang[1];Zhang, Zhe[1];Hong, Donghui[1];Zhang, Yayun[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Shanghai Key Lab Multiphase Mat Chem Engn, Shanghai 200237, Peoples R China

年份：2022

卷号：6

期号：9

起止页码：2289

外文期刊名：SUSTAINABLE ENERGY & FUELS

收录：;EI(收录号：20221812063710);WOS:【SCI-EXPANDED(收录号:WOS:000778869700001)】；

基金：This work was financially supported by the National Natural Science Foundation of China (no. 22008073) and the Shanghai Sailing Program (20YF1410600).

语种：英文

外文关键词：Aromatic hydrocarbons - Catalyst activity - Olefins - Polyethylenes - Pyrolysis - Carbides - Hydrogen bonds - Iron oxides - Jet fuel - Reaction intermediates

摘要：Catalytic pyrolysis of plastic wastes into valuable jet fuel is of great potential to tackle the energy and environmental concerns induced by the continuously increasing usage of petroleum-based polymers. Herein, we studied the catalytic pyrolysis of low-density polyethylene (LDPE) with Fe, Co, Ni and other metal-loaded activated carbon (AC) catalysts for efficient production of value-added aviation fuels. It was found that the introduction of iron carbide and iron oxides into AC by facile impregnation is essential to improve the catalytic activity. After adjusting the catalytic temperature and the loading ratio of Fe content, the proportion of olefins in the liquid product decreased significantly, with a minimum content of 1.89 area%, while the maximum content of hydrocarbons in the jet fuel range reached 96.17 area%. Fe active sites form more low-chain olefins by promoting beta-scission reactions, and olefins aromatize on acidic sites to form aromatic hydrocarbons. In addition, Fe active sites can adsorb carbonaceous intermediates and activate C-H bonds and catalyze hydrogen transfer reactions between cycloalkanes and olefins, upgrading them to alkanes and aromatics in the jet fuel range. Our work may provide a facile and environment-friendly strategy for fabricating Fe/AC bifunctional catalysts for efficient catalytic conversion of LDPE into valuable fuel products.