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Investigation of emissions from heated essential‐oil‐rich fuels at 200 °C
Author(s) -
Zhao FengJun,
Shu LiFu,
Wang MingYu,
Tian XiaoRui
Publication year - 2012
Publication title -
fire and materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.482
H-Index - 58
eISSN - 1099-1018
pISSN - 0308-0501
DOI - 10.1002/fam.2140
Subject(s) - camphene , limonene , chemistry , tenax , monoterpene , pyrolysis , pinus <genus> , environmental science , larix gmelinii , environmental chemistry , pulp and paper industry , gas chromatography , essential oil , botany , food science , organic chemistry , engineering , chromatography , biology , larch
SUMMARY Essential oil of fuels is closely linked with the behavior of forest fires, especially high intensity fires and eruptive fires. It is assumed that the potential reason is the large quantities of flammable gases released from essential oil‐rich fuels before pyrolysis in fire environment. However, few studies have been carried out on the hypothesis. The purpose of the present study is to investigate the emissions from essential oil‐rich fuels. The fuels were collected from three coniferous species. In the experiment, needles and twigs were heated in a vacuum oven at 200 °C, and the emissions within 15 min had been sampled using Tenax tubes. Gas chromatography–mass spectrometry served as an analytical instrument. The results showed that the emissions contained high proportion of monoterpenes, such as α‐pinene, camphene, β‐pinene, 3‐carene, and d ‐limonene. The monoterpene emissions from heated needles and twigs of Pinus pumila , Larix gmelinii , and Pinus sylvestris were 61.221, 49.606, and 37.853 µg g −1 dry weight (needles), and 211.727, 139.957, and 121.505 µg g −1 dry weight (twigs), respectively. Statistical analyses showed the significant differences not only among species but also between needles and twigs. Copyright © 2012 John Wiley & Sons, Ltd.