期刊
JOURNAL OF CO2 UTILIZATION
卷 21, 期 -, 页码 9-16出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jcou.2017.06.013
关键词
Carbon dioxide adsorption; Two-dimensional zeolites; Magnesium oxide incorporation
资金
- Czech Science Foundation [P106/12/0189]
Magnesium oxide has been introduced into zeolites MCM-22, MCM-36, IPC-3, IPC-3PI and ITQ-2 synthesized from 2D layered precursors MCM-22P and ICP-3P. Prepared materials were tested as carbon dioxide adsorbents in the temperature range from 0 degrees C to 60 degrees C. For parent zeolites, the IPC-3 has shown at 1 kPa the adsorption capacity (5.1 cm(3)/g STP), which was nearly two times higher than that of MCM-22 (2.7 cm(3)/g STP). Adsorption capacity of zeolites in the low pressure region markedly increased due to incorporation of magnesium oxide. The amount adsorbed on MgO-IPC-3 and MgO-MCM-22 at 1 kPa was enhanced to 11.4 and 13.7 cm(3)/g STP. Isosteric adsorption heats giving information on the energetics of CO2 adsorption were calculated.
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