Sulfonated periodic-mesoporous-organosilicas column for selective separation of C2H2/CH4 mixtures
Sulfonated periodic-mesoporous-organosilicas column for selective separation of C2H2/CH4 mixtures
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用于选择性分离 C2H2/CH4 混合物的磺化周期性介孔有机硅柱
DOI：
10.1016/j.jssc.2018.03.038
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发表时间：
2018
影响因子：
3.3
通讯作者：
Xiang Shengchang
中科院分区：
文献类型：
--
作者：
Wu Ling;Yu Zijin;Ye Yingxiang;Yang Yisi;Zeng Heng;Huang Jiali;Huang Yu;Zhang Zhangjing;Xiang Shengchang
轻烃混合物的分离是一个非常重要的工业过程。在这里，两个周期性的介孔有机硅（PMO）功能化与磺酸基团已成功地通过合成后修饰的苯或联苯桥PMO材料，这是用于分离C2 H2/CH 4混合物。在孔隙空间和磺酸基的协同作用下，具有磺酸基侧基的联苯桥联PMO材料（s-PMO-2）对C2 H2/CH 4混合气体表现出高度的选择性吸附。柱穿透实验进一步证明了该方法对C_2H_2/CH_4混合物的分离效率。
Light hydrocarbon mixtures separation is a very important industrial process. Here, two periodic mesoporous organosilicas (PMOs) functionalized with sulfonic acid groups have been successfully synthesized via post-synthetic modification of phenylene- or biphenylene-bridged PMO material, which are used in the separation of C2H2/CH4mixtures. The biphenylene-bridged PMO material with pendent sulfonate groups (s-PMO-2) shows up highly selective adsorption toward C2H2/CH4mixture upon the cooperative effect of pore space and sulfonate groups. The efficiency for the separation of C2H2/CH4mixtures is further demonstrated by column experimental breakthrough.