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Characterization of Solid Acid Catalysts and Their Reactivity in the Glycolysis of Poly(ethylene terephthalate)
Alternative TitleInd. Eng. Chem. Res.
Zhu, Minli1; Li, Zengxi1; Wang, Qian1,2; Zhou, Xueyuan1,2; Lu, Xingmei2
2012-09-12
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN0888-5885
Volume51Issue:36Pages:11659-11666
AbstractGlycolysis of poly(ethylene terephthalate) with ethylene glycol was carried out with the catalysts of sulfated cobalt oxide (SO42-/Co3O4) and zinc-modified sulfated cobalt oxide (SO42-/Co-Zn-O). The catalysts prepared at different calcination temperatures have been characterized by various techniques. These techniques include X-ray diffraction, Raman spectrum, gas adsorption analysis, NH3-temperature programmed desorption, and IR spectroscopy of pyridine adsorption. The performances of these catalysts on the depolymerization of PET under mild conditions were studied, and relationships between the catalysts' textural properties, the surface acidity, and the catalytic activity have been investigated. The experimental results showed that the catalytic activity on glycolysis of PET was significantly improved by the catalysts of binary sulfur oxides of SO42-/Co-Zn-O. The conversion of PET obtained on SO42-/Co-Zn-O-300 degrees C was 96%, and the selectivity of BHET was 75%, after 3 h at 180 degrees C under atmospheric pressure.; Glycolysis of poly(ethylene terephthalate) with ethylene glycol was carried out with the catalysts of sulfated cobalt oxide (SO42-/Co3O4) and zinc-modified sulfated cobalt oxide (SO42-/Co-Zn-O). The catalysts prepared at different calcination temperatures have been characterized by various techniques. These techniques include X-ray diffraction, Raman spectrum, gas adsorption analysis, NH3-temperature programmed desorption, and IR spectroscopy of pyridine adsorption. The performances of these catalysts on the depolymerization of PET under mild conditions were studied, and relationships between the catalysts' textural properties, the surface acidity, and the catalytic activity have been investigated. The experimental results showed that the catalytic activity on glycolysis of PET was significantly improved by the catalysts of binary sulfur oxides of SO42-/Co-Zn-O. The conversion of PET obtained on SO42-/Co-Zn-O-300 degrees C was 96%, and the selectivity of BHET was 75%, after 3 h at 180 degrees C under atmospheric pressure.
KeywordPolyethylene Terephthalate Supercritical Methanol Nanocrystalline Co3o4 Superacid Catalyst Ethylene-glycol Depolymerization Wastes Tio2-zro2 Kinetics Liquid
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/ie300493w
URL查看原文
Indexed BySCI
Language英语
WOS KeywordPOLYETHYLENE TEREPHTHALATE ; SUPERCRITICAL METHANOL ; NANOCRYSTALLINE CO3O4 ; SUPERACID CATALYST ; ETHYLENE-GLYCOL ; DEPOLYMERIZATION ; WASTES ; TIO2-ZRO2 ; KINETICS ; LIQUID
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000308575300010
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Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6276
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Grad Univ, Coll Chem & Chem Engn, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhu, Minli,Li, Zengxi,Wang, Qian,et al. Characterization of Solid Acid Catalysts and Their Reactivity in the Glycolysis of Poly(ethylene terephthalate)[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2012,51(36):11659-11666.
APA Zhu, Minli,Li, Zengxi,Wang, Qian,Zhou, Xueyuan,&Lu, Xingmei.(2012).Characterization of Solid Acid Catalysts and Their Reactivity in the Glycolysis of Poly(ethylene terephthalate).INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,51(36),11659-11666.
MLA Zhu, Minli,et al."Characterization of Solid Acid Catalysts and Their Reactivity in the Glycolysis of Poly(ethylene terephthalate)".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 51.36(2012):11659-11666.
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