Adsorptive Separation of Benzene, Cyclohexene, and Cyclohexane by Amorphous Nonporous Amide Naphthotube Solids

Angewandte Chemie
Huan YaoWei Jiang

Abstract

Benzene hydrogenation is an important industrial process. The reaction is incomplete, resulting in a mixture of benzene, cyclohexane, and/or cyclohexene that have to be separated before any further reactions. The currently used extractive and azeotropic distillations are operationally complex and energy intensive. Adsorptive separation provides an alternative energy-efficient method. However, the separation of the ternary mixture by adsorptive separation has not yet been reported. In the present research, we report two macrocyclic hosts with hydrogen-bonding sites in their cavities that are able to separate the ternary mixture of benzene, cyclohexene, and cyclohexane. N-H⋅⋅⋅π interactions were found to play a key role in the selective separation. In addition, fast adsorption, high loading ratios, and easy recycling are achieved with the present system, which is promising for practical applications.

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Citations

Mar 11, 2021·Journal of the American Chemical Society·Avishek DeyNiveen M Khashab
Jun 25, 2021·ACS Applied Materials & Interfaces·Lauren K MacreadieRavichandar Babarao
Jun 25, 2021·Chemical Science·Yanjun DingNiveen M Khashab
Jul 8, 2021·Chemical Communications : Chem Comm·Junjun WanXuzhou Yan
Sep 11, 2020·The Journal of Organic Chemistry·Alexander F PozharskiiNarek A Dzhangiryan
Nov 3, 2021·Chemical Communications : Chem Comm·Qiang ShiLeyong Wang
Nov 6, 2021·Nature Communications·Xiao-Ni HanChuan-Feng Chen
Nov 9, 2021·Journal of the American Chemical Society·Dan LuoXiaodong Chi

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