Journal
FUEL
Volume 180, Issue -, Pages 759-766Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2016.04.066
Keywords
Biodiesel; Phosphotungstic acid; Nanofiber; Composite catalytic membrane; Electrospinning
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Funding
- Natural Science Foundation of China [51403052]
- Key Scientific Research Projects in University of Henan Province [16A480005]
- Science and Technology Project of Zhengzhou City [153PKJGG133]
- Program for Innovative Research Team (in Science and Technology) in University of Henan Province [15IRTSTHN011]
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A nanofiber composite catalytic membrane for biodiesel production was prepared from phosphotungstic acid (PWA)/poly(vinyl alcohol) (PVA) via electrospinning on a substrate of non-woven fabric. The effects on the nanofiber structure and catalytic performance by PVA concentration and PWA content were studied, respectively. SEM images showed that the surface of PWA/PVA nanofibers was smooth and homogeneous with an average fiber diameter of 157.2 nm when PVA concentration was 12 wt% and PWA content was 20 wt%. FTIR analysis indicated that there existed the interaction between PWA and PVA in the nanofibers. DSC and TG analysis revealed that PWA/PVA nanofiber had a good thermal stability. The nanofiber membrane had a higher activity and better site accessibility than that of commercially ion-exchange resin (NKC-9) because both reaction rate constant (2.647 min(-1)) and effectiveness factor (0.92 min(-1)) of nanofiber membrane were higher than that of NKC-9. The stability test of nanofiber membrane suggested that the conversion could remain stable for 10 days in a continuous flow-through reactor for biodiesel production. (C) 2016 Elsevier Ltd. All rights reserved.
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