采用全二维气相色谱-飞行时间质谱表征生物柴油及其加氢生成物

石油炼制与化工 ›› 2026, Vol. 57 ›› Issue (9): 124-129.

采用全二维气相色谱-飞行时间质谱表征生物柴油及其加氢生成物

胡亭屹,太史剑瑶,程仲芊

中石化（大连）石油化工研究院有限公司

收稿日期:2026-03-10 修回日期:2026-06-12 出版日期:2026-09-12 发布日期:2026-08-21
通讯作者: 胡亭屹 E-mail:hutingyi.fshy@sinopec.com
基金资助:
非食用油脂制备烃类燃料联产高附加值化学品关键技术

CHARACTERIZATION OF BIODIESEL FEEDSTOCK AND ITS HYDROGENATION PRODUCTS USING COMPREHENSIVE TWO-DIMENSIONAL GAS CHROMATOGRAPHY–TIME-OF-FLIGHT MASS SPECTROMETRY

Received:2026-03-10 Revised:2026-06-12 Online:2026-09-12 Published:2026-08-21

摘要/Abstract

摘要： 基于全二维气相色谱-飞行时间质谱联用仪，建立了生物柴油（以脂肪酸甲酯为主要成分）及其两段加氢产物的分子结构表征方法，并对生物柴油及其加氢产物进行了全面的定性分析。基于上述分析结果，结合加氢反应机理解析，精准识别了生物柴油及其加氢产物中的烃类化合物、脂肪酸甲酯、羧酸、醇类等化合物的种类。结果表明：生物柴油主要由C₁₃～C₁₈的脂肪酸甲酯组成，其质量分数总和在95%以上，以不饱和脂肪酸甲酯为主；生物柴油一次加氢处理的产物主要由饱和脂肪酸甲酯组成，以棕榈酸甲酯与硬脂酸甲酯为主；生物柴油二次加氢处理的产物主要由正构烷烃组成，其质量分数在90%以上。

关键词: 全二维气相色谱-飞行时间质谱联用, 脂肪酸甲酯, 加氢产物, 生物柴油

Abstract: Based on a comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry system, a molecular structure characterization method for biodiesel (mainly composed of fatty acid methyl esters) and its two-stage hydrogenation products was established, enabling comprehensive qualitative analysis of biodiesel and its hydrogenation products. Based on this analysis, combined with the hydrogenation reaction mechanism, further interpretation was conducted to accurately identify the types of hydrocarbon compounds, fatty acid methyl esters, carboxylic acids, alcohols, and other compounds in biodiesel and its hydrogenation products. The results showed that biodiesel is mainly composed of C₁₃—C₁₈ fatty acid methyl esters, with a total mass fraction of over 95%, predominantly unsaturated fatty acid methyl esters; the products from the first hydrogenation treatment are mainly composed of saturated fatty acid methyl esters, predominantly palmitic acid methyl ester and stearic acid methyl ester; on this basis, the products from the second hydrogenation treatment are mainly composed of n-paraffins, with a mass fraction of over 90%.

Key words: comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry, fatty acid methyl ester, hydrogenation product, biodiesel

胡亭屹太史剑瑶程仲芊. 采用全二维气相色谱-飞行时间质谱表征生物柴油及其加氢生成物[J]. 石油炼制与化工, 2026, 57(9): 124-129.

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