Citation
Lahuri, Azizul Hakim and Yarmo, Mohd Ambar and Tengku Azmi, Tengku Sharifah Marliza and Abu Tahari, Maratun Najiha and Samad, Wan Zurina and Dzakaria, Norliza and Yusop, Muhammad Rahimi
(2017)
Carbon dioxide adsorption and desorption study using bimetallic calcium oxide impregnated on iron (III) oxide.
Materials Science Forum, 888.
479 - 484.
ISSN 0255-5476; ESSN: 1662-9752
Abstract
Bimetal adsorbent system of calcium oxide impregnated on iron (III) oxide were evaluated as a potential source of basic sites for CO2 capture. The adsorbents were prepared by impregnation method were calcined at 200 until 600 °C. Several characterizations were carried out using XRD, BET and CO2-TPD analysis. The CaO loading increased the basicity of the adsorbent significantly enhance the CO2 chemisorption. Furthermore, it drastically reduced the desorption temperature to 310-490 °C, which is important in chemisorption aspect. The CaO/Fe2O3200 which calcined at 200 °C was found to be most efficient. The CO2 chemisorption (81.29 mg CO2/g adsorbent) was contributed most compared to physisorption (4.64 mg CO2/g adsorbent).
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