Enhanced hydroconversion of polyethylene via dual-functional catalysis: Exploiting ZSM-22 pore-mouth catalysis and Ru electronic effect
文献类型：期刊论文
| 作者 | Cheng, Leilei1,2; Tian, Shaonan3; Liang, Dong2; Gu, Jing1,2; Chen, Ruizhe1,2; Chen, Xueru1,2; Yuan, Haoran1,2; Chen, Yong1,2 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2024-04-15 |
| 卷号 | 486页码:14 |
| 关键词 | Polyethylene Hydrocracking Ruthenium Zeolite Bifunctional catalyst |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2024.150332 |
| 通讯作者 | Yuan, Haoran(yuanhr@ms.giec.ac.cn) |
| 英文摘要 | The subject of extensive research, the low-temperature hydrocracking of polyethylene reveals the one-step synthesis of iso-alkanes via metal-acid bifunctional catalysis as an emerging strategy. Zeolites, with their superior compatibility with existing petrochemical infrastructure, serve as the acidic supports of choice. In this research, Ru nanoparticles were loaded onto ZSM-22, a zeolite known for its effective pore-mouth catalysis. Mechanical ball milling enhanced the pore-mouth area and the proximity of metal-acid sites, significantly boosting the hydrocracking reaction. The electronic properties of Ru were modified by selecting various Ru precursors and adjusting loading amounts. In-situ infrared studies showed the detachment of olefin intermediates from Ru sites as a critical factor in controlling hydrocracking and the terminal hydrogenolysis reactions. By combining catalyst characterization with reaction barrier calculations from density functional theory (DFT), it was found that oxidized Ru species aid in the release of olefin intermediates, facilitating Bronsted acid-driven beta-scission and isomerization reactions. The study achieved a liquid-phase yield exceeding 82 wt% and an iso/ n ratio surpassing 60% under low-energy consumption conditions using commercially available catalysts. |
| WOS关键词 | ISOMERIZATION |
| 资助项目 | CAS Project for Young Scientists in Basic Research[YSBR-044] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001206550800001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | CAS Project for Young Scientists in Basic Research |
| 源URL | [http://ir.giec.ac.cn/handle/344007/41454]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Yuan, Haoran |
| 作者单位 | 1.Univ Sci & Technol China, Sch Energy Sci & Engn, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng, Leilei,Tian, Shaonan,Liang, Dong,et al. Enhanced hydroconversion of polyethylene via dual-functional catalysis: Exploiting ZSM-22 pore-mouth catalysis and Ru electronic effect[J]. CHEMICAL ENGINEERING JOURNAL,2024,486:14. |
| APA | Cheng, Leilei.,Tian, Shaonan.,Liang, Dong.,Gu, Jing.,Chen, Ruizhe.,...&Chen, Yong.(2024).Enhanced hydroconversion of polyethylene via dual-functional catalysis: Exploiting ZSM-22 pore-mouth catalysis and Ru electronic effect.CHEMICAL ENGINEERING JOURNAL,486,14. |
| MLA | Cheng, Leilei,et al."Enhanced hydroconversion of polyethylene via dual-functional catalysis: Exploiting ZSM-22 pore-mouth catalysis and Ru electronic effect".CHEMICAL ENGINEERING JOURNAL 486(2024):14. |
入库方式： OAI收割
来源：广州能源研究所
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