文献类型：期刊文献

英文题名：Highly selective production of short-chain isoparaffins from lipids via one-step hydroconversion over ZSM-5 with tailored acidity

作者：Li, Ming[1];Ren, Xiaofei[2];Xu, Qing[1];Fu, Jingwei[1];Xian, Shengxian[1];Lv, Pengmei[3,4]

机构：[1]Guangdong Ocean Univ, Coll Ocean Engn & Energy, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Coll Food Sci & Technol, Zhanjiang 524088, Peoples R China;[3]Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China;[4]Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China

年份：2027

卷号：428

外文期刊名：FUEL

收录：SCI-EXPANDED(收录号：WOS:001820406600001)、、WOS

基金：This work was financially supported by the National Natural Science Foundation of China (No. 52576242, No. 52476190, No. 52376171) , the Non-Funded Science and Technology Research Project of Zhanjiang (No. 2025B01060, No. 2025B01047) , the Start-up Fund of Guangdong Ocean University (No. 060302072310, No. 060302072402) , the Guangxi Science and Technology Major Program (No. GUIKEJF2503980028) , the Guangdong Provincial Science and Technology Plan Project (No. 2024A0505040022) , the Joint Training Demonstration Base Project for Graduate Students of "Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences" in Guangdong Province, and the Zhanjiang Science and Technology Plan Project (No. 2025A401002) , the Young Innovative Talent Program for Higher Education Institutions of Guangdong (No. 2025KQNCX026) .

语种：英文

外文关键词：Aviation fuel; ZSM-5; Recrystallization; Hydroisomerization; Lewis acidity

外文摘要：One-step conversion of lipids into sustainable aviation fuel (SAF) rich in isomerized alkanes remains challenging due to diffusion limitations and the difficulty in precisely regulating acid sites in conventional zeolites. In this work, a high-performance Ni/HxNaZSM-5 catalyst was developed via a dissolution-recrystallization strategy, generating a distinctive honeycomb-like porous core with a dense outer shell. The resulting hierarchical pore structure effectively enhanced mass transfer, while the optimized acid distribution led to a significant increase in strong Lewis acid sites by up to sevenfold. This enhancement is mainly associated with TPAOH-induced surface reconstruction and the formation of Al VI /EFAl-related Lewis acid centers, while possible contributions from other extra-framework Al species or surface defects cannot be completely excluded. Meanwhile, super-strong acid sites responsible for excessive cracking and aromatization were largely suppressed, while a small amount of strong Br & oslash;nsted acid sites was retained to facilitate moderate cracking and isomerization. As a result, under identical non-isothermal heating conditions, the jet-fuel-range hydrocarbon fraction increased by 2.8 times. Under optimal conditions, the selectivity to isomerized alkanes reached 80.05 %, with 90.2 % selectivity toward C8-C16 hydrocarbons in the jet-fuel range. These findings provide an effective strategy for the selective production of SAFrange hydrocarbons from renewable lipids.