کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7079424 | 1459993 | 2013 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermogravimetric and kinetic analysis of thermal decomposition characteristics of low-lipid microalgae
ترجمه فارسی عنوان
تجزیه و تحلیل حرارتی سنجی و جنبشی از ویژگی های تجزیه حرارتی از میکروالگوهای کم چربی
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کلمات کلیدی
کلرلا، اسپیرولینا، ترموکوپل جنبشی، انرژی فعال ظاهری،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
The thermal decomposition behavior of two microalgae, Chlorella pyrenoidosa (CP) and Spirulina platensis (SP), were investigated on a thermogravimetric analyzer under non-isothermal conditions. Iso-conversional Vyazovkin approach was used to calculate the kinetic parameters, and the universal integral method was applied to evaluate the most probable mechanisms for thermal degradation of the two feedstocks. The differential equations deduced from the models were compared with experimental data. For the range of conversion fraction investigated (20-80%), the thermal decomposition process of CP could be described by the reaction order model (F3), which can be calculated by the integral equation of G(α) = [(1 â α)â2 â 1]/2. And the apparent activation energy was in the range of 58.85-114.5 kJ/mol. As for SP, it can be described by the reaction order model (F2), which can be calculated by the integral equation of G(α) = (1 â α)â1 â 1, and the range of apparent activation energy was 74.35-140.1 kJ/mol.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 150, December 2013, Pages 139-148
Journal: Bioresource Technology - Volume 150, December 2013, Pages 139-148
نویسندگان
Chao Gai, Yuanhui Zhang, Wan-Ting Chen, Peng Zhang, Yuping Dong,