基于快速球磨预处理的高结晶聚对苯二甲酸乙二醇酯纤维的简单酶解聚工艺。

IF 9.7 1区环境科学与生态学 Q1 AGRICULTURAL ENGINEERING

Bioresource Technology Pub Date : 2024-11-06 DOI:10.1016/j.biortech.2024.131759

Yu Zhou , Jinxu Zhang , Yunxin Zheng , Wei Lin , Shengping You , Mengfan Wang , Rongxin Su , Wei Qi

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引用次数: 0

摘要

废弃聚酯纺织废料的高结晶度（30%-50%）限制了其清洁酶解的工业化。本研究开发了一种基于球磨预处理的简单工艺，以实现对高结晶聚酯纤维的有效酶解。选择球磨法的原因是其工艺流程短、温和且不含化学物质，从废弃聚对苯二甲酸乙二酯（PET）降解中获得的对苯二甲酸（TPA）产量显著增加了 23.8 倍（60.9%），同时释放出的可溶性化合物中的对苯二甲酸（TPA）纯度也很高。室温下仅 30 分钟的球磨就能诱导聚酯发生非晶化，使聚酯的结晶度比未经处理的聚酯（51%）低 12%，同时增加了聚酯的表面粗糙度，从而提高了酶水解的效率。本研究开发的有效酶解聚酯纤维的简单工艺具有潜在的工业应用价值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Simple enzymatic depolymerization process based on rapid ball milling pretreatment for high-crystalline polyethylene terephthalate fibers

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Simple enzymatic depolymerization process based on rapid ball milling pretreatment for high-crystalline polyethylene terephthalate fibers

The high crystallinity (30 %–50 %) of discarded polyester textile waste limits the industrialization of its clean enzymatic depolymerization. In this study, a simple process based on ball milling pretreatment was developed to achieve effective enzymatic hydrolysis of high-crystalline polyester fiber. Ball milling was selected for its short, mild, and chemical-free process, which achieved a remarkable 23.8-fold (60.9 %) increase in terephthalic acid (TPA) yield from waste polyethylene terephthalate (PET) degradation, along with high TPA purity in the released soluble compounds. Just 30 min of ball milling at room temperature induced polyester amorphization, resulting in polyester with 12 % lower crystallinity compared with untreated polyester (51 %), while simultaneously increasing the surface roughness of polyester, thereby enhancing the efficiency of enzymatic hydrolysis. The simple process for effective enzymatic-depolymerization of waste polyester fiber developed in this study has potential industrial applications.

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来源期刊

Bioresource Technology 工程技术-能源与燃料

CiteScore

20.80

自引率

19.30%

发文量

2013

审稿时长

12 days

期刊介绍： Bioresource Technology publishes original articles, review articles, case studies, and short communications covering the fundamentals, applications, and management of bioresource technology. The journal seeks to advance and disseminate knowledge across various areas related to biomass, biological waste treatment, bioenergy, biotransformations, bioresource systems analysis, and associated conversion or production technologies. Topics include: • Biofuels: liquid and gaseous biofuels production, modeling and economics • Bioprocesses and bioproducts: biocatalysis and fermentations • Biomass and feedstocks utilization: bioconversion of agro-industrial residues • Environmental protection: biological waste treatment • Thermochemical conversion of biomass: combustion, pyrolysis, gasification, catalysis.