Investigation of the Catalytic Pyrolysis Of Polyester/Viscose Fibers with Monometallic-Supported Montmorillonite 


Vol. 26,  No. 3, pp. 1175-1183, Mar.  2025
10.1007/s12221-025-00882-8


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  Abstract

Inexpensive and active catalysts can improve the technical and economic efficiency of waste textiles. Therefore, several inexpensive metal materials have been added to clay-like montmorillonite (MMT) to improve its catalytic activity in the pyrolysis of polyester/viscose fibres. The Brunauer‒Emmett‒Teller (BET) method indicated that the MMT had a high specific surface area, which provided sufficient internal space for active metal dispersion and ample adsorption capacity for tar distillate and cracking products. Temperature-programmed desorption of NH3 (NH3-TPD) revealed that the acidity balance of the catalyst improved after different metals were added. Pyrolysis–gas chromatography/mass spectrometry (Py–GC/MS) studies revealed that the selectivity of MMT for aromatics increased after metal loading, and the selectivities of the Zn-containing MMT for monocyclic aromatics (MAHs) and polycyclic aromatics (PAHs) were the highest, at 46.70% and 27.68%, respectively. MMT-supported Ni increased the content of heavy aromatic hydrocarbons formed, with PAH contents of up to 43.16%, which made the catalyst more prone to deactivation during catalytic pyrolysis. The Mg-containing MMT showed similar catalytic activity to that of Ca-containing MMT in the catalysis of fibre pyrolysis; both produced more aromatics and favoured the formation of PAHs. These results indicate that various metal-containing MMT catalysts had significant effects on the yields of aromatic hydrocarbons during pyrolysis.

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  Cite this article

[IEEE Style]

H. Peng, P. Li, Q. Yang, "Investigation of the Catalytic Pyrolysis Of Polyester/Viscose Fibers with Monometallic-Supported Montmorillonite," Fibers and Polymers, vol. 26, no. 3, pp. 1175-1183, 2025. DOI: 10.1007/s12221-025-00882-8.

[ACM Style]

Hongmei Peng, Pingli Li, and Qi Yang. 2025. Investigation of the Catalytic Pyrolysis Of Polyester/Viscose Fibers with Monometallic-Supported Montmorillonite. Fibers and Polymers, 26, 3, (2025), 1175-1183. DOI: 10.1007/s12221-025-00882-8.

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pISSN : 1229 - 9197
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