کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8870113 | 1622614 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pyrolysis kinetic evaluation by single-step for waste wood from reforestation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
مهندسی ژئوتکنیک و زمین شناسی مهندسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The objective of this study was to evaluate the kinetic parameters of pyrolysis of waste wood from reforestation: Eucalyptus benthamii (EB), Eucalyptus dunnii (ED) and Pinus elliottii (PN). The kinetic study was performed using the Friedman, Flynn-Wall-Ozawa (FWO), Kissinger-Akahira-Sunose (KAS), Starink, and Vyazovkin methods from the experimental data at four heating rates (5, 10, 20 and 30â¯Â°Câ¯minâ1). The Friedman method presented higher activation energy values (Ea) when compared to the other methods (EaEBâ¯=â¯142.98â¯kJâ¯molâ1, EaEDâ¯=â¯147.71â¯kJâ¯molâ1, EaPNâ¯=â¯155.46â¯kJâ¯molâ1). The KAS, Starink and Vyazovkin methods resulted in approximate values of activation energy (EaEBâ¯=â¯132.83-133.31â¯kJâ¯molâ1, EaEDâ¯=â¯137.51-137.98â¯kJâ¯molâ1, EaPNâ¯=â¯145.24-145.70â¯kJâ¯molâ1) due to the approximation equations with lowest relative errors. The simulation of curves using the kinetic parameters obtained with the Vyazovkin method showed that the decomposition process of EB and ED occurs as a multi-step process resulting in an unsatisfactory result for the simulation. On the other hand, for PN a satisfactory fit to the experimental data was obtained, which demonstrates its suitability for application to the modeling of thermochemical systems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Waste Management - Volume 72, February 2018, Pages 265-273
Journal: Waste Management - Volume 72, February 2018, Pages 265-273
نویسندگان
Jean Constantino Gomes da Silva, José Luiz Francisco Alves, Wendell Venicio de Araujo Galdino, Silvia Layara Floriani Andersen, Rennio Felix de Sena,