کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6637714 | 461145 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sol-gel-derived, CaO-based, ZrO2-stabilized CO2 sorbents
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We report the synthesis of CaO-based, ZrO2-stabilized CO2 sorbents using a sol-gel technique. In addition, the influence of different synthesis parameters, i.e. the calcium precursor, the condensation time and the ratio of Ca2+ to Zr4+ on the morphology and the CO2 uptake of the materials was evaluated. The morphology and the chemical composition of the materials were characterized using X-ray diffraction, N2 physisorption and scanning electron microscopy whereas the CO2 uptake of the materials was determined using a thermogravimetric analyzer and a packed bed reactor. After 90 cycles of the repeated calcination and carbonation reactions, the CO2 uptake of the best sorbent was 0.34Â g CO2/g sorbent exceeding the performance of the reference limestone by 160%. The favorable CO2 capture characteristics of the synthetic CO2 sorbent were attributed to the formation of a finely dispersed, high Tammann temperature calcium zirconate framework, which minimized thermal sintering.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 127, 1 July 2014, Pages 94-100
Journal: Fuel - Volume 127, 1 July 2014, Pages 94-100
نویسندگان
Marcin Broda, Christoph R. Müller,