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Synthesis of a Porous Nano‐CaO/MgO‐Based CO 2 Adsorbent
Author(s) -
Lan Peiqiang,
Wu Sufang
Publication year - 2014
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201300709
Subject(s) - calcination , sorption , adsorption , materials science , chemical engineering , citric acid , magnesium , porosity , nano , durability , slurry , specific surface area , chemistry , composite material , metallurgy , organic chemistry , catalysis , engineering
A porous nano‐CaO/MgO‐based adsorbent was prepared using MgO as a support in order to increase the sorption capacity and durability. The magnesium sol prepared by reacting MgO slurry with citric acid was added to nano‐CaCO 3 slurry and the mixture was calcinated to obtain the nano‐CaO/MgO‐based adsorbent. The influence of MgO content on the structure and sorption performance of the resulting adsorbent was studied in detail. The pore radius and specific surface area of the adsorbent increased with higher MgO content. The adsorbent exhibited superior sorption performance during calcium looping and maintained a good durability at the calcination temperature, thus being an interesting candidate for future work.