High selective conversion of poly(ethylene terephthalate) into oil using Ca(OH)2

Toshiaki Yoshioka; Eisaku Kitagawa; Tadaaki Mizoguchi; Akitsugu Okuwaki

doi:10.1246/cl.2004.282

High selective conversion of poly(ethylene terephthalate) into oil using Ca(OH)₂

Toshiaki Yoshioka, Eisaku Kitagawa, Tadaaki Mizoguchi, Akitsugu Okuwaki

ENV - Frontier Science for Advanced Environment

Tohoku University

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

It is a well known fact that sublimation substances, such as benzoic acid and terephthalic acid, are produced in the thermal decomposition of PET, and this causes problems in plastic recycling plants. However, it is clear that the addition of Ca(OH)₂ affects the high selectivity of benzene without producing sublimation substances. The yield of benzene was 35.85 wt % at 700°C and a 10.0 Ca(OH)₂/PET molar ratio. This value means that the selectivity of benzene is 78.8% for liquid products, and 85.1 wt % for aromatic ring in input PET.

Original language	English
Pages (from-to)	282-283
Number of pages	2
Journal	Chemistry Letters
Volume	33
Issue number	3
DOIs	https://doi.org/10.1246/cl.2004.282
Publication status	Published - 2004 Mar

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abstract = "It is a well known fact that sublimation substances, such as benzoic acid and terephthalic acid, are produced in the thermal decomposition of PET, and this causes problems in plastic recycling plants. However, it is clear that the addition of Ca(OH)2 affects the high selectivity of benzene without producing sublimation substances. The yield of benzene was 35.85 wt % at 700°C and a 10.0 Ca(OH)2/PET molar ratio. This value means that the selectivity of benzene is 78.8% for liquid products, and 85.1 wt % for aromatic ring in input PET.",

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N2 - It is a well known fact that sublimation substances, such as benzoic acid and terephthalic acid, are produced in the thermal decomposition of PET, and this causes problems in plastic recycling plants. However, it is clear that the addition of Ca(OH)2 affects the high selectivity of benzene without producing sublimation substances. The yield of benzene was 35.85 wt % at 700°C and a 10.0 Ca(OH)2/PET molar ratio. This value means that the selectivity of benzene is 78.8% for liquid products, and 85.1 wt % for aromatic ring in input PET.

AB - It is a well known fact that sublimation substances, such as benzoic acid and terephthalic acid, are produced in the thermal decomposition of PET, and this causes problems in plastic recycling plants. However, it is clear that the addition of Ca(OH)2 affects the high selectivity of benzene without producing sublimation substances. The yield of benzene was 35.85 wt % at 700°C and a 10.0 Ca(OH)2/PET molar ratio. This value means that the selectivity of benzene is 78.8% for liquid products, and 85.1 wt % for aromatic ring in input PET.

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High selective conversion of poly(ethylene terephthalate) into oil using Ca(OH)₂

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