Formation of Soluble Furanic and Carbocyclic Oxy-Organics during the Hydrothermal Carbonization of Glucose,Energy & Fuels

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Formation of Soluble Furanic and Carbocyclic Oxy-Organics during the Hydrothermal Carbonization of Glucose
Energy & Fuels ( IF 5.2 ) Pub Date : 2020-01-14 , DOI: 10.1021/acs.energyfuels.9b03747
Ning Shi _{1,

2,

3} , Qiying Liu _{2,

3} , Ying Liu ₁ , Lijun Chen ₁ , Ni Chen ₁ , Jiayu Peng ₁ , Longlong Ma _{2,

3}

Affiliation

In this study, the water-soluble products formed during the hydrothermal carbonization of glucose were analyzed by liquid chromatography (LC)–mass spectrometry (MS) and LC–MS² to determine the formulas and the possible structures of the main compounds. In addition to the well-known compounds of 3-deoxyglucosone, 5-hydroxymethylfurfural, and levulinic acid, the furanic compounds and the carbocyclic oxy-organics containing hydroxy group and carbonyl group with a molecular mass range between 170 and 260 Da were also identified. Both C–C coupling reaction and C–C cleavage reaction were proved to be involved during the formation of these carbocyclic oxy-organics, so they were proposed to be released via C–C cleavage of the primary polymers, which were formed by aldol condensation of the primary precursors formed during the degradation of glucose. The identification of these carbocyclic oxy-organics was indirect evidence that aldol condensation played a crucial role during the formation of hydrochar from carbonization of glucose.

中文翻译：

葡萄糖水热碳化过程中可溶性呋喃和碳环氧基有机物的形成

在这项研究中，通过液相色谱（LC）-质谱（MS）和LC-MS ²分析了葡萄糖水热碳化过程中形成的水溶性产物。确定主要化合物的分子式和可能的结构。除了众所周知的3-脱氧葡糖酮，5-羟甲基糠醛和乙酰丙酸以外，还鉴定了呋喃化合物和含有羟基和羰基的分子量范围为170-260Da的碳环氧基有机物。这些碳环氧基有机物的形成都涉及到CC偶联反应和C C裂解反应，因此建议它们通过醛缩合形成的主要聚合物的C C裂解来释放。在葡萄糖降解过程中形成的主要前体中的一部分。

更新日期：2020-01-15

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