Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milano, Italy.
Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milano, Italy.
Waste Manag. 2019 Aug 1;96:1-8. doi: 10.1016/j.wasman.2019.07.014. Epub 2019 Jul 10.
Samples of sunflower Waste Cooking Oils (WCOs) subjected to several cycles of frying were treated with water under four different combinations of temperature and pH. Several aspects of the chemical composition of edible, non-treated and processed samples was determined by three different analytic techniques: headspace Solid-Phase Microextraction (HS-SPME) coupled with gas-chromatography (GC), H NMR spectroscopy and ESI-MS spectrometry. Thus, a characteristic chemical fingerprint of each sample was derived and proposed as useful set of tools for the optimization of recycling of WCOs. On the basis of the presented results, a mini-plant for the production of bio-lubricants and bio-solvents with a circular economy approach was designed and herein described.
葵花籽油废料（WCO）经过多次煎炸循环处理后，在四种不同的温度和 pH 值组合下用进行水热处理。采用顶空固相微萃取（HS-SPME）结合气相色谱（GC）、H NMR 光谱和 ESI-MS 光谱三种不同分析技术，测定了可食用、未经处理和加工样品的化学成分的多个方面。因此，得出了每个样品的特征化学指纹，并提出了一系列有用的工具，以优化 WCO 的回收利用。基于所呈现的结果，设计并描述了一种采用循环经济方法生产生物润滑剂和生物溶剂的小型工厂。
