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SYNTHESIS OF CO2-ONE ADSORBENT FOR CO2 REMOVAL
SYNTHESIS OF CO2-ONE ADSORBENT FOR CO2 REMOVAL
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机译：合成用于去除CO2的CO2吸附剂
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摘要
A new adsorbent CO2-ONE for removal of acidic gases such as carbon dioxide and hydrogen sulfide was developed from hydrothermal reaction of natural limestone with natural kaolin via sodium hydroxide. Several synthesis conditions were employed such as initial concentration of NaOH, weight ratio of limestone to kaolin, reaction temperature and pressure. The produced Ca—Na—SiO2-Al2O3 samples were characterized using XRD and EDS and showed that a mixture of Gehlenite Ca2Al(Al1.22Si0.78O6.78)OH0.22 and Stilbite Na5.76Ca4.96(Al15.68Si56.32O144) with percentage of 43 and 57 was successfully produced, respectively. Another produced sample showed the presence of Gehlenite Ca2Al(Al1.22Si0.78O6.78)OH0.22, Stilbite Na5.76Ca4.96(Al15.68Si56.32O144) and Lawsonite CaAl2Si2O7OH2(H2O) with percentage of 4.1 and 7.4 and 88, respectively.
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机译：天然石灰石与天然高岭土通过氢氧化钠水热反应，开发了一种新型吸附剂CO 2 -ONE，用于去除酸性气体如二氧化碳和硫化氢。使用几种合成条件，例如NaOH的初始浓度，石灰石与高岭土的重量比，反应温度和压力。用XRD和EDS对生成的Ca-Na-SiO2-Al2O3样品进行了表征，结果表明，辉石Ca 2 Al（Al 1.22 Si 0.78 Sub> O 6.78 ）OH 0.22 和Stilbite Na 5.76 Ca 4.96 （Al 15.68 Si 56.32 O 144 ）的百分比分别为43和57。另一个产生的样品显示存在亚硒酸钙Ca 2 Al（Al 1.22 Si 0.78 O 6.78 ）OH 0.22 ，Stilbite Na 5.76 Ca 4.96 （Al 15.68 Si 56.32 O 144 ）和钙钠铝石CaAl 2 Si 2 O 7 OH 2 （H 2 < / Sub> O），百分比分别为4.1、7.4和88。
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