TY - JOUR
T1 - Citrate Sol-Gel Method for the Preparation of Sodium Zirconate for High-Temperature CO2 Sorption
AU - Jo, Hyun Geun
AU - Yoon, Hyung Jin
AU - Lee, Chan Hyun
AU - Lee, Ki Bong
N1 - Funding Information:
This research was supported by the New & Renewable Energy Core Technology Program (20153030041170) and the Human Resources Development Program (20134010200600) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), funded by the Korean government's Ministry of Trade, Industry, & Energy. We also acknowledge the Korea Research Council of Fundamental Science and Technology (KRCF) for the additional support received from the National Agenda Program (NAP).
Publisher Copyright:
© 2016 American Chemical Society.
Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 2016/4/20
Y1 - 2016/4/20
N2 - The use of sorbents capable of capturing high-temperature CO2 increases the overall efficiency of CO2 removal processes, without the need for cooling the flue gases. In this study, Na2ZrO3 for high-temperature CO2 sorption was newly prepared using a citrate sol-gel method. The characteristics and CO2 sorption behavior of the prepared Na2ZrO3 were examined by field-emission scanning electron microscopy, N2 adsorption analysis, X-ray diffraction, and thermogravimetric analysis, and compared with those of Na2ZrO3 synthesized using a conventional solid-state method. Na2ZrO3 could be synthesized at lower temperature by using the citrate sol-gel method compared to the case of solid-state method. Na2ZrO3 prepared using the citrate sol-gel method showed excellent CO2 sorption performance: high sorption capacity (17.5-21.0 wt % at 823 K and 1 bar), fast sorption kinetics, and good cycling stability. Kinetic analysis was also conducted by fitting the CO2 sorption behavior to the double exponential model.
AB - The use of sorbents capable of capturing high-temperature CO2 increases the overall efficiency of CO2 removal processes, without the need for cooling the flue gases. In this study, Na2ZrO3 for high-temperature CO2 sorption was newly prepared using a citrate sol-gel method. The characteristics and CO2 sorption behavior of the prepared Na2ZrO3 were examined by field-emission scanning electron microscopy, N2 adsorption analysis, X-ray diffraction, and thermogravimetric analysis, and compared with those of Na2ZrO3 synthesized using a conventional solid-state method. Na2ZrO3 could be synthesized at lower temperature by using the citrate sol-gel method compared to the case of solid-state method. Na2ZrO3 prepared using the citrate sol-gel method showed excellent CO2 sorption performance: high sorption capacity (17.5-21.0 wt % at 823 K and 1 bar), fast sorption kinetics, and good cycling stability. Kinetic analysis was also conducted by fitting the CO2 sorption behavior to the double exponential model.
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U2 - 10.1021/acs.iecr.5b04915
DO - 10.1021/acs.iecr.5b04915
M3 - Article
AN - SCOPUS:84963959733
SN - 0888-5885
VL - 55
SP - 3833
EP - 3839
JO - Industrial & Engineering Chemistry Research
JF - Industrial & Engineering Chemistry Research
IS - 13
ER -