Adsorption Properties of C2H4 and C3H6 on 11 Adsorbents

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• 作者：Wei Su ; Ai Zhang ; Yan Sun ; Meng Ran ; Xiaojing Wang
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2017
• 出版时间：January 12, 2017
• 年：2017
• 卷：62
• 期：1
• 页码：417-421
• 全文大小：310K
• ISSN：1520-5134

文摘

Adsorption isotherms of pure C<sub>2sub>H<sub>4sub> and C<sub>3sub>H<sub>6sub> were measured on 11 adsorbents and at pressures up to 0.8 MPa using a volumetric method. The Brunauer–Emmett–Teller (BET) surface area of the adsorbents had a significant effect on adsorption capacities of both C<sub>2sub>H<sub>4sub> and C<sub>3sub>H<sub>6sub>. The metal organic framework MIL-101 had the highest BET surface area and the highest adsorption capacity. For zeolite molecular sieves 5A, the C<sub>2sub>H<sub>4sub> adsorption capacity was higher than that of C<sub>3sub>H<sub>6sub>, which is opposite to the results for most adsorbents. The isosteric heats of C<sub>3sub>H<sub>6sub> on AC-1, 5A, MIL-101, ZIF-8, and SG-1 were higher than those of C<sub>2sub>H<sub>4sub>. The C<sub>3sub>H<sub>6sub>/C<sub>2sub>H<sub>4sub> separation selectivities were calculated using the ideal solution theory, and the activated carbon AC-1 had the highest separation selectivity of 8.8.