当前位置: X-MOL 学术Ind. Eng. Chem. Res. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Assessment of PET Depolymerization Processes for Circular Economy. 2. Process Design Options and Process Modeling Evaluation for Methanolysis, Glycolysis, and Hydrolysis
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2024-02-16 , DOI: 10.1021/acs.iecr.3c04001
Adam McNeeley 1 , Y. A. Liu 1
Affiliation  

Poly(ethylene terephthalate) (PET) is the most widely produced thermoplastic used in many applications, such as drink bottles, packaging, and textiles. Chemical depolymerization represents a way to recycle PET that is robust to the low purity and quality of some waste PET sources. This work investigates process modeling of the three primary routes to depolymerize PET: methanolysis, glycolysis, and hydrolysis. We combine industrial patent literature and process design knowledge to simulate complete depolymerization processes and demonstrate how different configurations and process variables impact the process. We find glycolysis to be the simplest and least energy-intensive process when purification is simple, methanolysis to be attractive when purification is more challenging, and hydrolysis to be fundamentally the most complex and energy-intensive process. We reasonably expect a PET depolymerization process to be able to convert PET into monomers with an energy demand between 6000 and 10,000 kJ/kg of PET.

中文翻译:

循环经济 PET 解聚工艺评估。2. 甲醇分解、糖酵解和水解的工艺设计选项和工艺建模评估

聚对苯二甲酸乙二醇酯 (PET) 是生产最广泛的热塑性塑料,用于许多应用,例如饮料瓶、包装和纺织品。化学解聚是一种回收 PET 的方法,对于某些废 PET 来源的纯度和质量较低的情况来说,这种方法非常有效。这项工作研究了 PET 解聚的三种主要途径的过程建模:甲醇解、糖酵解和水解。我们结合工业专利文献和工艺设计知识来模拟完整的解聚过程,并演示不同的配置和工艺变量如何影响该过程。我们发现,当纯化简单时,糖酵解是最简单且能量密集程度最低的过程;当纯化更具挑战性时,甲醇分解是有吸引力的;而水解基本上是最复杂和能量密集的过程。我们合理地预期 PET 解聚过程能够将 PET 转化为单体,其能量需求在 6000 至 10,000 kJ/kg PET 之间。
更新日期:2024-02-16
down
wechat
bug