Thermal decomposition of castor oil, corn starch, soy protein, lignin, xylan, and cellulose during fast pyrolysis
| Autor: | Fanfan Xu, Bo Wang, Peijie Zong, Yuanyu Tian, Yaoyao Ji, Zhang Jinhong, Yingyun Qiao |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Castor Oil Environmental Engineering Starch Xylan (coating) Bioengineering 010501 environmental sciences Lignin 01 natural sciences chemistry.chemical_compound Polysaccharides 010608 biotechnology medicine Biomass Cellulose Waste Management and Disposal Soy protein 0105 earth and related environmental sciences Renewable Energy Sustainability and the Environment Thermal decomposition Temperature technology industry and agriculture food and beverages General Medicine Kinetics Chemical engineering chemistry Castor oil Soybean Proteins Thermodynamics Xylans Gases Pyrolysis medicine.drug |
| Zdroj: | Bioresource Technology. 278:287-295 |
| ISSN: | 0960-8524 |
| DOI: | 10.1016/j.biortech.2019.01.102 |
| Popis: | The aim of this work was to study the pyrolysis behavior of castor oil, corn starch, soy protein, lignin, xylan, and cellulose. The pyrolysis behavior, gaseous product evolution, kinetics and thermodynamics of these model compounds were investigated via TG-FTIR under high heating rates. The TG/DTG curves showed that castor oil had the widest pyrolysis temperature zone and lignin had the highest residual rate. The apparent activation energy of these model compounds was calculated by Kissinger-Akahira-Sunose method. The kinetic results revealed that the average bond energy of chemical compositions was in the order of lipid > lignin > starch > cellulose > protein > hemicellulose. The pre-exponential factor analysis showed that there were a large number of surface reactions for soy protein and xylan during pyrolysis, however other model compounds were not surface controlled. The thermodynamic parameters including G, ΔS, ΔH for six model compounds were also calculated. |
| Databáze: | OpenAIRE |
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