TY  - JOUR
Y1  - 2016///
A1  - Ahmed, S.
A1  - Ramli, A.
A1  - Yusup, S.
N1  - cited By 53
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84990191720&doi=10.1016%2fj.ijggc.2016.05.021&partnerID=40&md5=4ab7ff93573d9e78fd04c5c6608a3556
JF  - International Journal of Greenhouse Gas Control
VL  - 51
KW  - Adsorption; Atmospheric temperature; Carbon dioxide; Ethanolamines; Fourier transform infrared spectroscopy; Mesoporous materials; Silicon; Tea; Triethanolamine
KW  -  Adsorption capacities; Adsorption process; Adsorption studies; Adsorption temperature; Amine functionalization; Monoethanolamine; Three temperature; Transmission peaks
KW  -  Silicon compounds
KW  -  adsorption; carbamate (ester); carbon dioxide; low pressure; organic nitrogen compound; temperature
TI  - CO2 adsorption study on primary, secondary and tertiary amine functionalized Si-MCM-41
N2  - The present study was conducted to investigate the CO2 adsorption efficiency of siliceous mesoporous material known Si-MCM-41 and impacts of amine loading, amine type, CO2 pressure and adsorption temperatures on CO2 adsorption. Si-MCM-41 was impregnated with monoethanolamine (MEA), diethanolamine (DEA) and triethanolamine (TEA). The adsorption study was investigated from very low pressure to 1 bar at three temperatures (i.e. 25, 50 and 75 °C) in pure CO2 atmosphere. Pristine Si-MCM-41 shows maximum CO2 adsorption capacity of 27.78 mg/g at 25 °C and 1 bar pressure. Monoethanolamine functionalized Si-MCM-41 with 10â??50 wt. samples were investigated in order to optimize MEA loading for maximum CO2 adsorption. The 50 wt. MEA-Si-MCM-41 sample exhibited the highest CO2 adsorption capacity of 39.26 mg/g at 25 °C and 1 bar pressure as compared to other samples. 50 wt. DEA-Si-MCM-41 and 50 wt. TEA-Si-MCM-41 samples were also investigated for their affinity to capture CO2 at the same conditions. Results show that 50 wt. MEA-Si-MCM-41 still gives the highest CO2 adsorption capacity while adsorption capacity decreased in order of monoethanolamine, diethanolamine and triethanolamine-functionalized Si-MCM-41. CO2 adsorption capacity of all adsorbents decreases with increasing adsorption temperature above 25 °C. Fourier transform infrared spectroscopy (FTIR) analysis of CO2-saturated 50 wt. MEA, DEA and TEA-Si-MCM-41 samples shows the presence of transmission peaks associated to formation of carbamates. © 2016 Elsevier Ltd
SN  - 17505836
EP  - 238
ID  - scholars6889
AV  - none
PB  - Elsevier Ltd
SP  - 230
ER  -