A novel fructose-based adsorbent with high capacity and its ethane-selective adsorption property
| Autor: | Qibin Xia, Ying Wu, Huiyu Xiao, Xingjie Wang, Zhong Li, Junjie Peng |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Ethylene
Chemistry chemistry.chemical_element 02 engineering and technology Microporous material 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Electronic Optical and Magnetic Materials Inorganic Chemistry chemistry.chemical_compound Petrochemical Adsorption Chemical engineering Volume (thermodynamics) Selective adsorption Materials Chemistry Ceramics and Composites Physical and Theoretical Chemistry 0210 nano-technology Selectivity Carbon |
| Zdroj: | Journal of Solid State Chemistry. 268:190-197 |
| ISSN: | 0022-4596 |
| Popis: | Separation of ethane/ethylene mixture at normal temperature and pressure is a challenging issue in the petrochemical industry. Herein, we synthesized Fructose-based carbon materials (C-Frus) with characteristic of ethane-selective adsorption for the energy-effective separation of ethane and ethylene. The as-synthesized sample C-Fru-4-700 exhibited narrow micropore size distribution and high micropore volume. More importantly, these samples presented preferential adsorption of C2H6 over C2H4, of which the ethane capacity of the sample C-Fru-4-700 reached as high as 7.94 mmol/g at 25 °C and 100kPa, much higher than that of many MOFs, and its selectivity for equimolar C2H6/C2H4 mixture reached 4 at low pressure. These excellent properties made C2H6/C2H4 mixture be well separated by fixed bed at 25 °C. Computational simulations revealed that the surface Osite1, Osite2 and Osite3 sites of the materials are the favorably adsorptive sites of C2H6. Fructose-based carbon materials are promising for separation of ethane/ethylene mixture at normal condition. |
| Databáze: | OpenAIRE |
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