کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7899482 | 1510168 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Kinetic thermal behaviour and evaluation of physical structure of sugar cane bagasse char during non-isothermal steam gasification
ترجمه فارسی عنوان
رفتار حرارتی جنبشی و ارزیابی ساختار فیزیکی چغندر قند قارچ در طی گازسیستم بخار غیر گرمایی
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
In the current study, the steam gasification reactivity, thermal behaviour and activation energies of sugar cane bagasse (SCB) chars prepared at 500, 800 and 900 °C were investigated via thermogravimetric analyser (TGA) under non isothermal conditions at different heating rates of 10, 15 and 20 °C minâ1. The physical structures of SCB chars as a function of pyrolysis temperature have been studied by using Brunauer-Emmett-Teller (BET) surface area technique. The achieved results explore that the gasification of SCB chars took place almost completely in one-stage process. The char reactivity is directly proportional to gasification heating rate and inversely to the pyrolysis temperature. The pyrolysis temperature significantly affected on the physical char structures. The activation energies were estimated by Vyazovkin and Ozawa-Flynn-wall methods. The Vyazovkin and Flynn-Wall-Ozawa methods show mean activation energies of 131.20-141.61 kJ molâ1 for SCB 5, 195.40-203.17 kJ molâ1 for SCB 8 and 246.84-252.66 kJ molâ1 for SCB 9. Finally, Vyazovkin and Ozawa-Flynn-Wall methods are efficiently utilized to predict the experimental data and the reaction mechanism of SCB chars steam gasification.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Research and Technology - Volume 5, Issue 4, OctoberâDecember 2016, Pages 317-326
Journal: Journal of Materials Research and Technology - Volume 5, Issue 4, OctoberâDecember 2016, Pages 317-326
نویسندگان
Elbager M.A. Edreis, Hong Yao,