LIU Yonghui,FU Jueming,LI Yu,et al.Alkylamine/Layered Titanates Composite Adsorbents and its CO2 Adsorption Performance[J].Journal of Chengdu University of Information Technology,2019,(06):671-675.[doi:10.16836/j.cnki.jcuit.2019.06.017]
胺/层状钛酸盐复合材料对CO2的吸附性能研究
- Title:
- Alkylamine/Layered Titanates Composite Adsorbents and its CO2 Adsorption Performance
- 文章编号:
- 2096-1618(2019)06-0671-05
- Keywords:
- adsorption; CO2 capture; composite adsorbents; stability; kinetic fitting
- 分类号:
- X51
- 文献标志码:
- A
- 摘要:
- CO2导致的全球气候变化引起了国际社会的普遍关注。采用有机胺-多孔载体复合材料吸附捕集CO2具有良好的应用前景。将不同链长的烷基胺嵌入层状钛酸盐中制备得到一系列胺改性复合吸附剂并考察其CO2吸附特性。实验结果表明,样品呈现出优良的稳定性。样品在250℃以下不会发生分解; CO2吸附容量在150℃时达到48 mg/g,且5次吸附-脱附循环后无容量损失。胺-钛酸盐复合材料为研究开发新型高效的CO2吸附剂提供了新思路。
- Abstract:
- The greenhouse gas effect and global climate change caused by large CO2 emission have generated the concern of international society. It has excellent application prospect when using organic amine-porous carrier composites to adsorb and capture CO2.Alkylamine of different chain length is embedded into layered titanate to obtain a series of amine modified composite adsorbent and its adsorb characteristics has been tested. The experimental results showed that this kind of composites displayed superior stability, There was no obvious mass loss of sample below 250 ℃.The adsorption amount of CO2 reached 48 milligrams per gram at 150 ℃,and there is no capacity loss after 5 times adsorption-desorption cycles.The Amine-Titanate composites offer new ideas for researching and developing new and efficient CO2 adsorbent.
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备注/Memo
收稿日期:2019-02-27基金项目:国家自然科学基金资助项目(51608061); 四川省科技计划资助项目(2014JY0178)