Mechanistic insights into Ga-modified hollow ZSM-5 catalyzed fast pyrolysis of cassava residue
文献类型：期刊论文
| 作者 | Liu, Huiyu1,2,3,4; Zhang, Jun1,2,3,4; Shan, Rui1,2,3,4; Yuan, Haoran1,2,3,4; Chen, Yong1,2,3,4 |
| 刊名 | ENERGY
 |
| 出版日期 | 2024-05-15 |
| 卷号 | 295页码:13 |
| 关键词 | Cassava residue Catalytic fast pyrolysis Hollow ZSM-5 Kinetics Aromatics |
| ISSN号 | 0360-5442 |
| DOI | 10.1016/j.energy.2024.131068 |
| 通讯作者 | Yuan, Haoran(yuanhr@ms.giec.ac.cn) |
| 英文摘要 | The preparation of valuable chemicals by catalytic fast pyrolysis (CFP) is a promising and environmentallyfriendly approach for the selective upgrading of waste cassava residue (CR). This work systematically investigated the conversion mechanism and kinetic characteristics of CR pyrolysis over Ga-modified hollow ZSM-5, for the purpose of enhancing aromatics production. The hollow configuration significantly regulated the structural characteristics of ZSM-5, thus facilitating the diffusion, deoxygenation, and aromatization of pyrolysis intermediates. The incorporation of Ga species and generated Br & oslash; nsted acid sites remarkably accelerated the reaction rate and suppressed the carbonization at high temperatures, through enhancing the end scission of starch and cellulose components. With the aid of 5Ga/ZSM-H, the relative content of aromatics achieved 95.4% at 700 degrees C, and still maintained over 92.5% even after 5 cycles. The ring-opening and retro-aldol degradation were identified as crucial steps for the production of ketones and aldehydes separately, which were further transformed into hydrocarbon pools by deoxygenation and subsequently converted into aromatics via Diels-Alder reaction. Kinetic analysis demonstrated that the use of 5Ga/ZSM-H lowered the average activation energy of CR pyrolysis by 14.8%, particularly for the initial pyrolysis stage. Moreover, the plausible mechanism for aromatics formation from Ga-modified hollow ZSM-5 catalyzed CR pyrolysis was proposed. |
| WOS关键词 | BIO-OIL ; BIOMASS ; ZEOLITE ; SILICALITE-1 ; ETHANOL ; LIGNIN ; SITES |
| 资助项目 | National Natural Science Foundation of China[52276219] ; Guangdong Basic and Applied Basic Research Foundation[2021B1515020068] ; CAS Project for Young Scientists in Basic Research[YSBR-044] ; Youth Innovation Promotion Association CAS[2023367] |
| WOS研究方向 | Thermodynamics ; Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:001214741400001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; Guangdong Basic and Applied Basic Research Foundation ; CAS Project for Young Scientists in Basic Research ; Youth Innovation Promotion Association CAS |
| 源URL | [http://ir.giec.ac.cn/handle/344007/41541]  |
| 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 230022, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 4.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Huiyu,Zhang, Jun,Shan, Rui,et al. Mechanistic insights into Ga-modified hollow ZSM-5 catalyzed fast pyrolysis of cassava residue[J]. ENERGY,2024,295:13. |
| APA | Liu, Huiyu,Zhang, Jun,Shan, Rui,Yuan, Haoran,&Chen, Yong.(2024).Mechanistic insights into Ga-modified hollow ZSM-5 catalyzed fast pyrolysis of cassava residue.ENERGY,295,13. |
| MLA | Liu, Huiyu,et al."Mechanistic insights into Ga-modified hollow ZSM-5 catalyzed fast pyrolysis of cassava residue".ENERGY 295(2024):13. |
入库方式： OAI收割
来源：广州能源研究所
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