Authors:
S. Lin National Yunlin University of Science and Technology Graduate School of Engineering Science and Technology 123 University Rd., Sec. 3 Douliou, Yunlin, Taiwan 64002 ROC

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J. Tseng National Yunlin University of Science and Technology Graduate School of Engineering Science and Technology 123 University Rd., Sec. 3 Douliou, Yunlin, Taiwan 64002 ROC

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M. Lee Chia-Nan University of Pharmacy and Science Department of Occupational Safety and Health 60 Er-Jen Rd., Sec. 1 Jen-Te Tainan, Taiwan 71710 ROC

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T. Wu HungKuang University Department of Safety, Health and Environmental Engineering 34 Chung-Chie Rd. ShaLu, Taichung Taiwan 43302 ROC

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C. Shu National Yunlin University of Science and Technology Graduate School of Engineering Science and Technology 123 University Rd., Sec. 3 Douliou, Yunlin, Taiwan 64002 ROC

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Abstract  

Styrene is an important chemical in the petrochemical industry. In recent years, there have been sporadic releases, runaway reactions, fires, and thermal explosion accidents incurred by styrene and its derivatives worldwide. The purpose of this study was to estimate the impact of styrene and its derivatives of α-methylstyrene (AMS) and trans-β-methylstyrene (TBMS) contacting with benzaldehyde. Experiments were carried out to evaluate the thermokinetic parameters estimated by differential scanning calorimetry (DSC) and thermal activity monitor III (TAM III). TAM III was used to determine the fundamental thermokinetics under various isothermal temperatures, 80, 90 and 100°C. This autocatalytic reaction was demonstrated in thermal curves. After styrene was contacted with benzaldehyde, the exothermic onset temperature (T0) and the total heat of reaction (Qtotal) were altered by DSC tests. When benzaldehyde is mixed with AMS and TBMS, the reaction time will be shorter but the enthalpy reduced, as revealed by TAM III tests. As AMS and TBMS, respectively, were contacted with benzaldehyde, both exothermic phenomena were changed during the reaction excursion. According to the results of this research, an operator should dictate the oxygen concentration in order to avoid any potential hazards during handling and transportation.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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