期刊
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
卷 130, 期 -, 页码 277-284出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jaap.2017.12.021
关键词
Seaweed; Macroalgae; Pyrolysis; Kinetic analysis; Multi shot-GC/MS
资金
- Korea Ministry of Environment [YL-WE-17-001]
- New and Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Trade, Industry & Energy, Republic of Korea [20153030101580]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20153030101580] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The pyrolysis of Laminaria (L.) japonica was examined using non-isothermal analytical pyrolysis techniques, such as thermogravimetric (TG) and multi-shot pyrolyzer (Py)-gas chromatography/mass spectrometry (GC/MS) analysis. TG, derivative TG curves, and the apparent activation energy suggested that the decomposition of L. japonica has three thermal decomposition stages. The average mass spectra and multi-shot Py-GC/MS chromatograms obtained at each thermal decomposition stage confirmed the main decomposition reaction at each thermal zone. At the first stage, the decomposition of lipids and carbohydrates was initiated. The main decomposition of carbohydrates occurred at the second stage. At the final stage, proteins were decomposed and char intermediates were stabilized by supplying a higher temperature. A low activation energy at the second stage and the presence of metals in L japonica suggests that during the non-isothermal pyrolysis of L. japonica, the catalytic effect is enhanced and involves the decomposition of carbohydrates.
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