Disposable baby diapers waste derived catalyst for synthesizing glycerol carbonate by the transesterification of glycerol with dimethyl carbonate. (20th February 2019)

• Record Type: Journal Article
• Authors: Wang, Song; Wang, Jianye; Sun, Pengliang; Xu, Lanlan; Okoye, Patrick U.; Li, Sanxi; Zhang, Linnan; Guo, Anbang; Zhang, Jin; Zhang, Ailing
• Is Part Of: Journal of cleaner production. Volume 211(2019)
• Page Start: 330
• Page End: 341
• Publication Date: 2019-02-20
• Subjects: Glycerol -- Glycerol carbonate -- Transestrification -- Disposable baby diapers waste; Factory and trade waste -- Management -- Periodicals; Manufactures -- Environmental aspects -- Periodicals; Déchets industriels -- Gestion -- Périodiques; Usines -- Aspect de l'environnement -- Périodiques; 628.5
• DOI: 10.1016/j.jclepro.2018.11.196
• Languages: English
• ISSNs: 0959-6526

Abstract

Abstract: In this work, the superabsorbent polymer (SAP) in the disposable baby diapers waste (DBDW) was carbonized at different temperatures to prepare a series of base catalysts. The carbonization behavior of the SAP was examined by thermogravimetric analysis (TGA). The structure and morphology of the as-prepared catalysts were investigated by field emission scanning electron microscope (FESEM), Fourier transform infrared spectroscopy (FTIR), X-ray Diffraction (XRD), Brunauer-Emmet-Teller surface area measurement (BET), and acid-base titration technique. The catalytic ability of these catalysts in the transesterification reaction of glycerol with dimethyl carbonate (DMC) was compared. Among them, the catalyst prepared by the carbonization of the SAP collected from the DBDW at 500 °C in nitrogen was the most suitable one for the synthesis of glycerol carbonate (GC) by the transesterification of glycerol with DMC. This catalyst showed good catalytic activity with the glycerol conversion of 95.6% and GC yield of 93.6%. Moreover, it exhibited high reusability after eight-time reuse in the reaction. Graphical abstract: Disposable baby diapers waste derived catalyst for the transesterification of glycerol with DMC. Highlights: Disposable diapers waste was first used as the material to prepare base catalyst. Prepared catalyst had high catalytic activity in the synthesis of glycerol carbonate. The reusability of the prepared catalyst was excellent.