NDLI: Characterization of high-alumina coal fly ash based silicate material and its adsorption performance to CO$

Content Provider	Springer Nature Link
Author	Yan, Yinan Gao, Yajun Tang, Wenjing Li, Qiang Zhang, Jianbin
Copyright Year	2016
Abstract	Silicate material prepared from high-alumina coal fly ash (HACFA) was characterized by using XRD, SEM, FTIR spectroscopy, TGA-DSC, and elemental analysis. These spectral results show that the silicate material is mainly composed of eight elements—O, C, Si, Ca, Na, Mg, Al, and Fe, which exist as the formations of Ca$^{2+}$, Na$^{+}$, Mg$^{2+}$, Al$^{3+}$, Fe$^{3+}$, SiO 3 2− , and COO 3 2− , and some adsorbed water and crystal water are determined in the silicate material. The material with surface area of 117.12m$^{2}$/g shows a faveolate structure, and a pore size distribution of silicate material is calculated at 11.01 nm from the nitrogen desorption isotherm using the BJH model. When the material was used for CO$_{2}$ adsorption at T=323.15 K and flow rate=95mL/min with 15.79% (vol) CO$_{2}$, a dynamic adsorption capacity of CO$_{2}$ on the surface of silicate material was found at 8.67mg/g and the adsorption values decreased weakly after seventeen recycling times. The investigation of dynamic adsorption behavior shows that the silicate material presents similar adsorption properties with commercial active carbon and stronger adsorption properties than commercial diatomite.
Starting Page	1369
Ending Page	1379
Page Count	11
File Format	PDF
ISSN	02561115
Journal	Korean Journal of Chemical Engineering
Volume Number	33
Issue Number	4
e-ISSN	19757220
Language	English
Publisher	Springer US
Publisher Date	2016-01-20
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Silicate Material High-alumina Coal Fly Ash (HACFA) Carbon Dioxide (CO$_{2}$) Adsorption Regeneration Industrial Chemistry/Chemical Engineering Catalysis Materials Science Biotechnology
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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