Application of analytical pyrolysis for wood fire protection control |
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| Institution: | 1. Latvian State Institute of Wood Chemistry, 27 Dzerbenes St., LV-1006 Riga, Latvia;2. Latvian Technical University, 14/24 Azenes St., LV-1048 Riga, Latvia;3. Federal Research Centre for Forestry and Forest Products, Institute for Wood Chemistry and Chemical Technology of Wood, Leuschnerstr. 91, D-21031 Hamburg, Germany;1. College of Chemistry and Chemical Engineering, Jiangxi Inorganic Membrane Materials Engineering Research Center, Jiangxi Normal University, Nanchang 330022, China;2. Department of Chemistry, University of Tennessee, Knoxville, TN 37996, USA;1. Mechanical and Industrial Engineering Department, College of Engineering, Qatar University, P.O. Box 2713, Doha, Qatar;2. Department of Mechanical Convergence Engineering, Hanyang University, Seoul, South Korea;3. Department of Bioengineering, College of Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 133-791, South Korea;4. Department of Biomedical Engineering, Ajman University, United Arab Emirates;1. Université François Rabelais, Laboratoire PCM2E, Parc de Grandmont, 37200 Tours, France;2. The QUILL Research Centre, School of Chemistry and Chemical Engineering, Queen''s University of Belfast, Stranmillis Road, Belfast BT9 5AG, United Kingdom;1. Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan;2. Department of Cardiology, Respiratory Medicine, and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan;3. Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan;4. Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan |
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| Abstract: | The effect of two flame-retardant compositions (A-76% potassium carbonate, B-67% sulphate ammonium) on the process of thermal degradation of wood and the composition of volatile products of pyrolysis has been investigated by the thermogravimetry and analytical pyrolysis methods. It has been shown that the effect of flame retardants manifests itself in the low-temperature region with the formation of more thermally stable intermediate carbonized products. Upon pyrolysis of wood under the action of the composition A, the mechanism of degradation of the lignin component changes, which manifests itself in a more than two-fold increase in the guaiacol and vinylguaiacol contents in the composition of volatile products and the inhibition of the formation of carbohydrates destruction products. It has been found that the composition B has a catalytic action mainly on the process of thermal depolymerization of cellulose, favouring the increase in the formation of levoglucosan and practically does not change the yield of lignin degradation products. |
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