کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6582687 | 456355 | 2016 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improvements of CaO-based sorbents for cyclic CO2 capture using a wet mixing process
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Improvements of CaO-based sorbents for cyclic CO2 capture using a wet mixing process Improvements of CaO-based sorbents for cyclic CO2 capture using a wet mixing process](/preview/png/6582687.png)
چکیده انگلیسی
CaO-based sorbents are suitable candidates for CO2 capture at high temperatures. However, the CO2 capture capacity of untreated CaO-based sorbents decreases sharply after a few cycles. In this paper, a wet mixing method was employed to synthesize CaO-molecular sieve-alumina ceramic sorbents for CO2 capture. Cyclic experiments were carried out in a thermogravimetric analyzer (TGA). The sorbent using molecular sieve and alumina ceramic as the calcium precursors showed the best cyclic CO2 uptake capacity, 0.41Â g CO2/g sorbent after 20 cycles of calcination and carbonation. The synthesized materials were characterized by X-ray diffraction (XRD), nitrogen adsorption and desorption isotherms test, and scanning electron microscopy (SEM)/energy dispersive spectrometer (EDS). The sorbent showed a better sintering-resistant property and a more porous microstructure during multiple calcination and carbonation cycles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 286, 15 February 2016, Pages 320-328
Journal: Chemical Engineering Journal - Volume 286, 15 February 2016, Pages 320-328
نویسندگان
Zhao Sun, Changchun Xu, Shiyi Chen, Wenguo Xiang,