کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9693965 | 1459635 | 2005 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comparison of the kinetics of thermal decomposition of biological substances between thermogravimetry and a fielded pyrolysis bioaerosol detector
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Thermal decomposition processes were investigated for Bacillus Gram-positive spores. Thermogravimetry analysis (TGA) experiments at 200Â KÂ minâ1 produced a temporal evolution of biochemicals from the spores. Qualitative and quantitative aspects such as peak resolution, peak ratios, peak positions, and temperature maxima are compared and contrasted in the thermal weight loss and differential thermogravimetry (DTG) curves for different Bacillus bacterial spores. The TGA experimental data were used to generate the activation energy and frequency factor Arrhenius equation parameters. These parameters were used to produce TGA and the negative of the first derivative of the TGA (âDTG) decomposition model curves, and the latter are compared to their respective bacterial experimental TGA and âDTG profiles for validation and modeling purposes. The thermal decomposition model is also shown to have application in the prediction of weight loss profiles at significantly higher heating rates than that from the laboratory TGA system. The model thermal decomposition profiles are applied in comparisons to the total ion chromatograms of Bacillus atrophaeus bacterial spores generated by an outdoors fielded pyrolysis-gas chromatography-ion mobility spectrometry (Py-GC-IMS) bioaerosol detection system. Pyrolysis at a high heating rate of 3300Â KÂ minâ1 was used. The bioaerosol detection system provides very similar qualitative information to the TGA and âDTG experimental and model profiles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thermochimica Acta - Volume 437, Issues 1â2, 15 October 2005, Pages 87-99
Journal: Thermochimica Acta - Volume 437, Issues 1â2, 15 October 2005, Pages 87-99
نویسندگان
A. Peter Snyder, Waleed M. Maswadeh, Charles H. Wick, Jacek P. Dworzanski, Ashish Tripathi,