期刊
GREEN CHEMISTRY
卷 16, 期 3, 页码 1262-1273出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3gc41867g
关键词
-
资金
- National Key Basic Research Program of China [2013CB733600, 2011CB710805]
- National Natural Science Foundation of China [21276017]
- National High Technology Research and Development Program of China [2012AA021404]
- Fundamental Research Funds for the Central Universities of China
Producing furfural based on the hydrolysis of biomass rich in hemicellulose is a sustainable technique; however, separating furfural from the hydrolysate by the conventional methods like distillation is energy-intensive and environmentally unfriendly. Pervaporation, an energy-efficient 'clean technology', is thus suggested for the separation of furfural. A polydimethylsiloxane (PDMS) membrane was prepared using water as a solvent in the presence of a surfactant (sodium dodecyl sulfate, SDS). Effects of feed concentration and temperature, thickness of the PDMS layer and operation time on pervaporation performance were investigated, and the apparent activation energies of furfural and water permeating through the membrane were calculated according to the Arrhenius-type equation. Permeate concentration and furfural flux reached 62.4 wt% and 3222.6 g m(-2) h(-1) when separating 6.5 wt% furfural aqueous solution at 95 degrees C. Compared to distillation, pervaporation by the PDMS membrane provided higher selectivity while consuming 70% less evaporation energy. Additionally, the PDMS membrane displayed more promising potential in industrial application than those reported in the literature due to its higher furfural flux.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据