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Issue 1, 2015
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Preparation of 1,4-cyclohexanedimethanol by selective hydrogenation of a waste PET monomer bis(2-hydroxyethylene terephthalate)

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Abstract

A new approach is developed for the preparation of 1,4-cyclohexanedimethanol (CHDM) by hydrogenation of bis(2-hydroxyethylene terephthalate) (BHET) obtained from waste poly(ethylene terephthalate) (PET). The influences of various reaction parameters including temperature, pressure and time, on the hydrogenation reaction were studied, and the 100% conversion of BHET and 78% yield of CHDM were achieved with Pd/C and Cu-based catalysts. X-ray diffraction, low temperature N2 adsorption–desorption and H2 temperature-programmed reduction were used to characterize the Cu-based catalysts, demonstrating that the Cu+/Cu0 species are the active sites. This study not only provides a new route for the production of CHDM, but also an approach for the efficient utilization of waste PET.

Graphical abstract: Preparation of 1,4-cyclohexanedimethanol by selective hydrogenation of a waste PET monomer bis(2-hydroxyethylene terephthalate)

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Publication details

The article was received on 19 Sep 2014, accepted on 24 Nov 2014 and first published on 24 Nov 2014


Article type: Paper
DOI: 10.1039/C4RA10783G
RSC Adv., 2015,5, 485-492

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    Preparation of 1,4-cyclohexanedimethanol by selective hydrogenation of a waste PET monomer bis(2-hydroxyethylene terephthalate)

    X. Guo, J. Xin, X. Lu, B. Ren and S. Zhang, RSC Adv., 2015, 5, 485
    DOI: 10.1039/C4RA10783G

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