کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4980752 | 1367839 | 2016 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A novel removal of CO2 using nitrogen doped biochar beads as a green adsorbent
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
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چکیده انگلیسی
This study investigated the removal characteristic of CO2 by a porous nitrogen doped biochar (AMBC) bead sorbent. The AMBC beads possessed a well-developed pore structure with a high specific surface area of 328.6 m2 gâ1, which is very helpful for CO2 adsorption. In the adsorption tests carried out using a lab-scale fixed-bed column, the CO2 removal performance was further improved by increasing the porosity and the specific surface area of the sorbent. The synthesized AMBC beads exhibited a very high CO2 removal capacity of 10.15 mmol gâ1 at 20 °C, which is much higher than that of commercial activated carbon and other adsorbents. The CO2 adsorption capacity of the AMBC bead was maintained at 85% of the initial bead adsorption capacity even after 10 adsorption desorption recovery cycles. The AMBC beads also showed great selectivity for CO2 (79.1) in the CO2/N2 gas mixture. The easily collected synthesized AMBC beads can be used as an effective and environmentally friendly alternative adsorbent for CO2 capture.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Process Safety and Environmental Protection - Volume 104, Part B, November 2016, Pages 490-498
Journal: Process Safety and Environmental Protection - Volume 104, Part B, November 2016, Pages 490-498
نویسندگان
Minh-Viet Nguyen, Byeong-Kyu Lee,