کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8076657 1521469 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Adsorption of carbon dioxide by sodium hydroxide-modified granular coconut shell activated carbon in a fixed bed
ترجمه فارسی عنوان
جذب دی اکسید کربن توسط کربن فعال پوسته نارگیل دانه اصلاح شده سدیم هیدروکسید در بستر ثابت
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
چکیده انگلیسی
In the present work, commercial coconut shell activated carbon was impregnated with alkaline NaOH to investigate the efficiency of modified activated carbon for CO2 adsorption in a fixed-bed column adsorption system. The modification parameters, such as the NaOH concentration (24-48%) and dwelling time (1-4 h), were also investigated. The results showed that a 32% NaOH concentration with a 3 h dwelling time provided the best CO2 adsorption capacity. Later, the modified activated carbon was characterized by nitrogen adsorption-desorption, scanning electron microscopy and Fourier transform infrared spectroscopy. The effects of the CO2 % in the feed, the adsorption temperature, the feed flow rate and the amount of adsorbent in the column were investigated in the adsorption experiments. The maximum CO2 adsorption capacity in this study was 27.10 mg/g at 35 °C. This study also suggests that NaOH-modified activated carbon is a state-of-the-art adsorbent for CO2 adsorption.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 77, 1 December 2014, Pages 926-931
نویسندگان
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