A novel strategy for rapid identification of pyrolytic synergy and prediction of product yield: Insight into co-pyrolysis of xylan and polyethylene

Xie, Shengyu; Kumagai, Seiji; Takahashi, Naomichi; Kameda, Tomohito; Saito, Yuko; Yoshioka, Toshiaki

doi:10.1016/j.cej.2022.139958

Cited by 8 publications

(1 citation statement)

References 42 publications

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“…Steam degradation experiments were performed in a tube reactor [36] equipped with a syringe pump (Fig. 1).…”

Section: Steam Degradation Experimentsmentioning

confidence: 99%

Characteristics of the steam degradation of poly(lactic acid) and poly(3-hydroxybutyrate-co-3-hydroxyhexanoate)

Shao,

Kumagai,

Saito

et al. 2024

Polym J

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The introduction of biodegradable plastics is considered a practical approach to reducing plastic waste accumulation in the environment. Regardless of their biodegradability, plastics should be recycled to effectively utilize and circulate carbon as a resource. Herein, the use of pyrolysis was examined as a method for recycling two common biobased/biodegradable plastics: PLA and PHBH. The pyrolysis of PLA produced lactides (10.7 wt% at 400 °C), but the yield was decreased when the pyrolysis temperature was increased. The presence of steam promoted the hydrolysis of PLA: a steam concentration of 25 vol % increased, the production of lactides at 400 °C to 17.4 wt%. The pyrolysis of PHBH primarily yielded crotonic acid (30.1 wt% at 400 °C), and the yield increased with increasing pyrolysis temperature (71.8 wt% at 800 °C). Steam injection increased the hydrolysis of oligomers, resulting in a 76.1 wt% yield of crotonic acid at 600 °C with a steam concentration of 25 vol %. Thus, we determined that hydrolysis and pyrolysis progress simultaneously under a steam atmosphere, increasing the chemical feedstock recovery from PLA and PHBH. These findings may lead to the proposal of effective degradation methods for treating biobased/biodegradable plastic wastes and ways to maximize the conversion efficiency and target product yields.

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“…Steam degradation experiments were performed in a tube reactor [36] equipped with a syringe pump (Fig. 1).…”

Section: Steam Degradation Experimentsmentioning

confidence: 99%

Characteristics of the steam degradation of poly(lactic acid) and poly(3-hydroxybutyrate-co-3-hydroxyhexanoate)

Shao,

Kumagai,

Saito

et al. 2024

Polym J

Self Cite

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show abstract

Systematic optimization of biochars derived from corn wastes, pineapple leaf, and sugarcane bagasse for Cu(II) adsorption through response surface methodology

Iamsaard

Weng

Tzeng

et al. 2023

Bioresource Technology

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Combining hierarchical clustering analysis with a simplex lattice mixture design in rapidly identifying the pyrolytic interactions and predicting the product yields during the co-pyrolysis of cellulose, xylan, and milled wood lignin

Xie,

Kumagai,

Kim

et al. 2024

Chemical Engineering Journal

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A novel strategy for rapid identification of pyrolytic synergy and prediction of product yield: Insight into co-pyrolysis of xylan and polyethylene

Cited by 8 publications

References 42 publications

Characteristics of the steam degradation of poly(lactic acid) and poly(3-hydroxybutyrate-co-3-hydroxyhexanoate)

Characteristics of the steam degradation of poly(lactic acid) and poly(3-hydroxybutyrate-co-3-hydroxyhexanoate)

Systematic optimization of biochars derived from corn wastes, pineapple leaf, and sugarcane bagasse for Cu(II) adsorption through response surface methodology

Combining hierarchical clustering analysis with a simplex lattice mixture design in rapidly identifying the pyrolytic interactions and predicting the product yields during the co-pyrolysis of cellulose, xylan, and milled wood lignin

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