CO2 Capture Using Amine-impregnated Activated Carbon from Jatropha curcas Shell | Chapter 03 | Advances in Applied Science and Technology Vol. 7
A micro porous activated carbon (JAC)
was synthesis from Jatropha curcas shell an agricultural waste by chemical
activation using KOH. The JAC was modified with triethanolamine (TEA) to
produce (JAC-TEA). The performance of both adsorbents in CO2 capture
study was evaluated in a cylindrical glass column equipped with a digital mass
balance. The effect of adsorbent dosage (0.5-1.5 g) and temperature (30-60°C)
as a function of time was investigated. The results showed that CO2
adsorption capacities of the adsorbents increase on amine loading and adsorbent
dosage (bed height), while the adsorption capacity decreases with increase in
temperature. Adsorption capacity of JAC and JAC-TEA were 66 and 78 mg/g
respectively. Crystallinity, morphological structure and surface functional
groups of adsorbents were characterized using X-ray diffraction, Scanning
electron microscopy and Fourier Transformed
Infra red spectrophotometer respectively, while the surface areas and
porosity were determined by Brunauer-Emmett-Teller. Both adsorbents had good
crystallinity with a well-developed pore structures. The mechanism of CO2
adsorption onto JAC and JAC-TEA is physisorption and that the adsorbent
(JAC-TEA) can be used upto 7 cycles. The results of this study have revealed
that a cost-effective high quality porous activated carbon can be prepared from
a cheap carbonaceous material like Jatropha curcas shell and modified to
improve its CO2 adsorption capacity.
Author(s) Details
Dr. Mohammed Alhassan
Department of Chemical
Engineering, Federal University of Technology, Minna, Nigeria.
Manase Auta
Department of Chemical
Engineering, Federal University of Technology, Minna, Nigeria.
Jossey K. Sabo
Department of Chemical
Engineering, Federal University of Technology, Minna, Nigeria.
Musa Umaru
Department of Chemical
Engineering, Federal University of Technology, Minna, Nigeria.
Abdulsalam S. Kovo
Department of Chemical
Engineering, Federal University of Technology, Minna, Nigeria.
Abdullahi Abdulsalam
Maryam Abacha American
University, Maradi, Niger Republic.
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