Synthesis of ultra-low freezing point alkane by self-aldol condensation of n-butyraldehyde over MgO-SiO2catalyst followed by hydrodeoxygenation over Pd/C and HZSM-5 catalyst
文献类型：期刊论文
| 作者 | Jiang, Zhenjing1,2; Wang, Wuyu3; Zhao, Xuelai4; Zhang, Xinghua3; Zhang, Qi3; Ma, Longlong3 |
| 刊名 | BIOMASS & BIOENERGY
 |
| 出版日期 | 2024-11-01 |
| 卷号 | 190页码:10 |
| 关键词 | N-butyraldehyde Aldol condensation MgO-SiO2 Ultra-low freezing point Jet fuel |
| ISSN号 | 0961-9534 |
| DOI | 10.1016/j.biombioe.2024.107380 |
| 通讯作者 | Zhang, Xinghua(zhangxh@seu.edu.cn) ; Zhang, Qi(zhangxh@seu.edu.cn) |
| 英文摘要 | Production of jet fuel is not only promising but challenging in the field of biomass utilization. Here we proposed a novel route to produce highly branched alkanes with ultra-low freezing point using n-butyraldehyde as feedstock by self-aldol condensation and subsequent hydrodeoxygenation (HDO). The catalyst characterization revealed that the MgO-SiO2 catalyst played an acid-base synergetic effect role in the self-aldol condensation of n-butyraldehyde using n-butanol as solvent, which obtained C8 oxygenate and C12 oxygenate with yield of 69.3 % and 26.8 % respectively. The medium Br & oslash;nsted base site of the catalyst captured alpha-H to promote the formation of enolate from n-butyraldehyde, and the Lewis acid sites promoted the dehydration of intermediate products. DFT simulation showed that n-butanol activated alpha-C in enolate in aldol condensation, and deactivated the oxygen atoms in enolate by hydrogen bonds to inhibit side reactions. Finally, the obtained condensation products were subjected to HDO reaction over the 5 wt% Pd/C and HZSM-5 catalysts, obtaining the highly branched alkanes with an ultra-low freezing point of -120.7 degrees C for C8 alkane and -78.7 degrees C for C12 alkane suitable for bio-jet fuels. |
| WOS关键词 | SELECTIVE OXIDATION ; MGO-SIO2 CATALYSTS ; ETHANOL ; HYDROGENATION ; ACETALDEHYDE ; PERFORMANCE ; CONVERSION ; BUTADIENE ; BUTANOL ; FUELS |
| 资助项目 | National Key R&D & D Program of China[2022YFE0207200] ; National Natural Science Foundation of China[52236010] ; Fundamental Research Funds for the Central Universities[2242022R10058] ; Academician and Expert Workstation of Yunnan Province, China[202205AF150024] |
| WOS研究方向 | Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:001322205000001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Key R&D & D Program of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Academician and Expert Workstation of Yunnan Province, China |
| 源URL | [http://ir.giec.ac.cn/handle/344007/43008]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Zhang, Xinghua; Zhang, Qi |
| 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.Southeast Univ, Sch Energy & Environm, Key Lab Energy Thermal Convers & Proc Control Meas, Minist Educ, Nanjing 210096, Peoples R China 4.Anhui Univ Sci & Technol, Sch Chem & Blasting Engn, Huainan 233022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Zhenjing,Wang, Wuyu,Zhao, Xuelai,et al. Synthesis of ultra-low freezing point alkane by self-aldol condensation of n-butyraldehyde over MgO-SiO2catalyst followed by hydrodeoxygenation over Pd/C and HZSM-5 catalyst[J]. BIOMASS & BIOENERGY,2024,190:10. |
| APA | Jiang, Zhenjing,Wang, Wuyu,Zhao, Xuelai,Zhang, Xinghua,Zhang, Qi,&Ma, Longlong.(2024).Synthesis of ultra-low freezing point alkane by self-aldol condensation of n-butyraldehyde over MgO-SiO2catalyst followed by hydrodeoxygenation over Pd/C and HZSM-5 catalyst.BIOMASS & BIOENERGY,190,10. |
| MLA | Jiang, Zhenjing,et al."Synthesis of ultra-low freezing point alkane by self-aldol condensation of n-butyraldehyde over MgO-SiO2catalyst followed by hydrodeoxygenation over Pd/C and HZSM-5 catalyst".BIOMASS & BIOENERGY 190(2024):10. |
入库方式： OAI收割
来源：广州能源研究所
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