کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
690784 1460423 2015 6 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Reduction kinetics of cobalt oxide powder by methane in a fluidized bed reactor
ترجمه فارسی عنوان
سینتیک کاهش پودر اکسید کبالت بوسیله متان در یک رآکتور بستر سیال
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
سفارش ترجمه تخصصی
با تضمین قیمت و کیفیت
کلمات کلیدی
مطالعه جنبشی، کاهش مدل اصلی ناموفق، رقیق کننده مایع اکسید کبالت، متان
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی


• Reaction kinetics of powder form cobalt oxide with methane has been studied.
• The reduction reaction was carried out in a laboratory fluidized bed reactor.
• The reaction was carried out at different temperatures and methane mole fractions.
• Calculated kinetic parameters have been compared with parameters published before.

In the present work, cobalt oxide in powder form with an average particle size of 100 µm has been reduced by methane used as a reducing agent in a batch fluidized bed reactor. The reaction was carried out in the temperature range of 800–950 °C with mole fractions of methane at the values of 0.15, 0.3 and 0.5. Argon was used as a fluidizing gas with a velocity of 1.3 times the minimum fluidization velocity. Approximately 4 g of cobalt oxide powder has been used in a laboratory scale fluidized bed reactor with 18-mm inner diameter and 1.1 m length. The ratio of the bed height to the bed diameter, after fluidization, was approximated near unity. The chemical reaction kinetics has been found as the rate limiting step under the experimental conditions used. The activation energy and the order of reaction have been calculated as 120 kJ/mol and 0.9, respectively, on the basis of the shrinking unreacted core model.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the Taiwan Institute of Chemical Engineers - Volume 51, June 2015, Pages 171–176
نویسندگان
, , ,
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
سفارش ترجمه تخصصی
با تضمین قیمت و کیفیت