Water-tolerant phosphotungstic acid catalyst for controllable synthesis of high-performance biojet fuel

被引：8

作者：

Liu, Yanan ^{[1
]}

Nie, Genkuo ^{[1
,2
]}

Yu, Shitao ^{[2
]}

Pan, Lun ^{[1
]}

Wang, Li ^{[1
]}

Zhang, Xiangwen ^{[1
]}

Shi, Chengxiang ^{[1
]}

Zou, Ji-Jun ^{[1
]}

机构：

[1] Tianjin Univ, Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Sch Chem Engn & Technol, Key Lab Green Chem Technol,Minist Educ, Tianjin 300072, Peoples R China

[2] Qingdao Univ Sci & Technol, Coll Chem Engn, State Key Lab Base Ecochem Engn, 53 Zhengzhou Rd, Qingdao 266042, Peoples R China

来源：

CHEMICAL ENGINEERING SCIENCE | 2021年 / 238卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Jet fuel; Phosphotungstic acid; Water tolerance; Aldol condensation; Lignocellulose; HIGH-DENSITY; SELF-CONDENSATION; FREEZING-POINT; LIQUID; COPOLYMER; ZEOLITE; ALKANES; KETONES; BLENDS;

D O I：

10.1016/j.ces.2021.116592

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Synthesizing high-performance jet fuels from lignocellulose-derived ketones through aldol condensation is significant for expanding the sources of jet fuel and promoting high-value conversion of biomass. The main problem in aldol condensation is that water generated in such a reaction will decrease the activity of the acid catalyst. Herein, we developed a highly stable, efficient, and water-tolerant SBA-16 confined phosphotungstic acid (HPW) catalyst and applied it to controllably catalyze cross-condensation of cyclopentanone and cyclohexanone. The surface of SBA-16 was modified by alkylimidazole, which creates a relatively hydrophobic environment and anchor points for HPW, leading to resistance to HPW leaching and maintenance of a stable performance for the catalyst. After hydrodeoxygenation, a highperformance fuel blend with a density of approximately 0.905 g/mL and a freezing point lower than-50 degrees C was obtained. This study provides a general method for preparing highly efficient and stable catalysts for reactions affected by water. (c) 2021 Elsevier Ltd. All rights reserved.

引用

页数：8

共 43 条

[1] Heteropoly acid encapsulated into zeolite imidazolate framework (ZIF-67) cage as an efficient heterogeneous catalyst for Friedel-Crafts acylation [J].