Two-dimensional zeolites: Adsorption of carbon dioxide on pristine materials and on materials modified by magnesium oxide

被引：12
|
作者：
Zukal, Arnost [1 ]
Kubu, Martin [1 ]
Pastva, Jakub [1 ]
机构：
[1] Acad Sci Czech Republ, J Heyrovsky Inst Phys Chem, Dept Synth & Catalysis, Vvi, Dolejskova 2155-3, Prague 12823, Czech Republic
来源：
JOURNAL OF CO2 UTILIZATION | 2017年 / 21卷
关键词：
Carbon dioxide adsorption; Two-dimensional zeolites; Magnesium oxide incorporation; CO2; CAPTURE; CATALYTIC-ACTIVITY; MESOPOROUS SILICA; MOLECULAR-SIEVE; MCM-22; PERFORMANCE; CHALLENGES; STRATEGIES; CONVERSION; SOLIDS;
D O I：
10.1016/j.jcou.2017.06.013
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
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.
引用
收藏
页码：9 / 16
页数：8
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