Thermally Stable Amine-Grafted Adsorbent Prepared by Impregnating 3-Aminopropyltriethoxysilane on Mesoporous Silica for CO2 Capture

2016 ◽  
Vol 55 (29) ◽  
pp. 7842-7852 ◽  
Author(s):  
Dang Viet Quang ◽  
T. Alan Hatton ◽  
Mohammad R. M. Abu-Zahra
2020 ◽  
Vol 37 (12) ◽  
pp. 2317-2325
Author(s):  
Seong Bin Jo ◽  
Ho Jin Chae ◽  
Tae Young Kim ◽  
Jeom-In Baek ◽  
Dhanusuraman Ragupathy ◽  
...  

Author(s):  
Dang Viet Quang ◽  
Dao Van Duong ◽  
Vu Thi Hong Ha ◽  
Dao Sy Duc ◽  
Tran Thi Ngoc Dung ◽  
...  

Amine-mesoporous silica has been considered as a promising CO2 adsorbent with high potential for the reduction of energy consumption and CO2 capture cost; however, its stability could greatly vary with synthetic method. In this study, adsorbents prepared by impregnating different amines including polyethylenimine (PEI) and 3-aminopropyltriethoxysilane (APTES) onto mesoporous silica were used to evaluate the effect of amines selection on the stability of adsorbents used in CO2 capture process. Results revealed that APTES impregnated mesoporous silica (APTES-MPS) is more stable than PEI-impregnated mesoporous silica (PEI-MPS); APTES-MPS was thermally decomposed at ≈280 oC, while PEI-MPS was thermally decomposed at ≈180 oC only. PEI-MPS was particularly less stable when operating under dry condition; its CO2 adsorption capacity reduced by 22.1% after 10 adsorption/regeneration cycles, however, the capacity can be significantly improved in humid condition. APTES-MPS showed a greater stability with no significant reduction in CO2 capture capacity after 10 adsorption/regeneration cycles. In general, APTES-MPS adsorbent possesses a higher stability compared to PEI-MPS thanks to the formation of chemical bonds between amino-functional groups and mesoporous silica substrate. Keywords: Mesoporous silica; CO2 capture; Adsorption; Regeneration; Emission.


2012 ◽  
Vol 190 (1) ◽  
pp. 15-22 ◽  
Author(s):  
Ji-Eun Park ◽  
Han-Kyol Youn ◽  
Seung-Tae Yang ◽  
Wha-Seung Ahn

Nano Research ◽  
2013 ◽  
Vol 6 (12) ◽  
pp. 871-879 ◽  
Author(s):  
Junchen Chen ◽  
Renyuan Zhang ◽  
Lu Han ◽  
Bo Tu ◽  
Dongyuan Zhao

2016 ◽  
Vol 4 (4) ◽  
pp. 4514-4524 ◽  
Author(s):  
Simone G. de Ávila ◽  
Marco A. Logli ◽  
Luís Carlos C. Silva ◽  
Márcia C.A. Fantini ◽  
Jivaldo R. Matos

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