TY  - JOUR
PB  - Italian Association of Chemical Engineering - AIDIC
SN  - 22839216
EP  - 78
AV  - none
N1  - cited By 3
TI  - Addition of water in calcium based adsorbent for CO2 adsorption: Experimental and isotherm modelling studies
SP  - 73
Y1  - 2016///
A1  - Azmi, N.
A1  - Rashidi, N.A.
A1  - Yusup, S.
A1  - Sabil, K.M.
JF  - Chemical Engineering Transactions
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85009802427&doi=10.3303%2fCET1652013&partnerID=40&md5=441557a16f4039bc1bd66a3f93dbc24c
VL  - 52
N2  - In this work, a combined process of adsorption and gas hydrate formation is proposed as an alternative approach for the separation of carbon dioxide (CO2) content from gas stream. The objective of this research is to study adsorption isotherms of the CO2 gas onto the synthesized calcium oxide (CaO) via a static volumetric method at 2 °C at a different amount of water ratio (Rw). A large increment of CO2 adsorption was observed on the wetted sample due to formation of CO2 hydrates, particularly at high pressure. The highest adsorption capacity was obtained at Rw of 0.67. The experimental data of CO2 adsorption isotherms for Rw = 0 and Rw = 0.67 are further analyzed by five isotherm models which are Langmuir, Freundlich, Redlich-Peterson (R-P), Toth and Sips. The Freundlich model satisfactorily describes the CO2 adsorption onto the dried sample, whilst the R-P model is best fitted for the wetted sample. Copyright © 2016, AIDIC Servizi S.r.l.
ID  - scholars7552
KW  - Adsorption; Adsorption isotherms; Calcium; Carbon; Gas hydrates; Hydration; Wetting
KW  -  Adsorption capacities; Freundlich models; High pressure; Hydrate formation; Isotherm models; Modelling studies; Volumetric methods; Water ratio
KW  -  Carbon dioxide
ER  -