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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Rapid Quantitative Analytical Tool for Characterizing the Preparation of Biodiesel
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Rapid Quantitative Analytical Tool for Characterizing the Preparation of Biodiesel

机译:用于表征生物柴油制备的快速定量分析工具

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摘要

A novel qualitative method has been developed for the determination of the various types of hydroxyl groups present in biodiesel production streams. The use of 2-chloro-4,4,5,5-tetramethyl-1,3,2-dioxaphospholane as a phosphitylation reagent for quantitative 31P NMR analysis of the hydroxyl groups in biodiesel process samples has been fully developed. This experimental protocol allows for rapid analysis of biodiesel mixtures of alcohols, fatty acids, glycerol, and mono- and disubstituted glycerides. Characteristic chemical shift ranges were developed with model compounds and used to fully characterize the conversion of triglyceride samples to biodiesel for two commercial production processes.
机译:已经开发出一种新颖的定性方法来测定生物柴油生产流中存在的各种类型的羟基。已经充分开发了使用2-氯-4,4,5,5-四甲基-1,3,2-二氧杂膦烷作为磷酸化试剂进行生物柴油工艺样品中羟基的31P NMR定量分析。该实验规程允许快速分析酒精,脂肪酸,甘油以及单取代和双取代的甘油酯的生物柴油混合物。使用模型化合物开发了特征性的化学位移范围,并用于两个商业化生产过程中完全表征甘油三酸酯样品向生物柴油的转化。

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