期刊
BIORESOURCE TECHNOLOGY
卷 139, 期 -, 页码 323-329出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2013.04.011
关键词
Crude glycerol; Bio-based polyols; PU foams; Py-GC-MS; TGA
资金
- USDA-NIFA Critical Agricultural Materials Program [USDA NIFA 2012-38202-19288]
- Ohio Soybean Council
- Bio100 Technologies, LLC.
This study aimed to produce biopolyols from crude glycerol via a novel thermochemical conversion process. The effect of operational parameters, including sulfuric acid loading and reaction temperature and time, on the properties of the produced biopolyols was investigated. Biopolyols produced under preferred reaction conditions of 200 degrees C, 90 min, and 3% sulfuric acid loading showed a hydroxyl number of around 481 mg KOH/g, an acid number of around 5 mg KOH/g, and a viscosity of around 25.0 Pa s. The resulting polyurethane (PU) foams showed a compressive strength of around 184.5 kPa and a density of around 43.0 kg/m(3), comparable to those of some petroleum-based analogs. Characterization of the biopolyols via pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS), gas chromatography (GC), and thermogravimetrical analysis (TGA) showed that the major reactions of this process were the formation of monoglycerides and diglycerides through the esterification and transesterification of different components in crude glycerol. (C) 2013 Elsevier Ltd. All rights reserved.
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