Pyrolysis bio-oils could be used in the future as biofuels or as a source of valuable oxygen-containing chemicals. To facilitate efficient exploitation of bio-oils, a detailed understanding of their structure is necessary. Over the past decade, petroleomic analysis has been widely applied to characterize pyrolysis bio-oils from the lignocellulosic biomass. Typically, a petroleomic analysis has been performed using high-resolution mass spectrometry (HRMS). HRMS has enabled the researchers to determine the molecular weights and molecular formulas of thousands of less volatile and nonvolatile, high-molecular-weight bio-oil compounds to obtain structural information that cannot be obtained using any other method. Here, we discuss the theoretical principles of HRMS and present an overview of the investigations regarding the petroleomic characterization of pyrolysis bio-oils and their key findings. In addition, this review outlines the current knowledge of the structure of bio-oil compounds detectable by HRMS. This could help us to understand the chemical composition of bio-oils in more detail and facilitate the design of processes for bio-oil upgrading and further utilization.

中文翻译：

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裂解生物油的石油脂质表征：综述。

热解生物油将来可以用作生物燃料或用作有价值的含氧化学品的来源。为了促进生物油的有效开发，有必要对其结构进行详细的了解。在过去的十年中，石油化学分析已被广泛应用于表征木质纤维素生物质的热解生物油。通常，已使用高分辨率质谱（HRMS）进行了石油学分析。HRMS使研究人员能够确定数以千计的挥发性和非挥发性低分子量高分子量生物油化合物的分子量和分子式，从而获得使用任何其他方法都无法获得的结构信息。这里，我们讨论了HRMS的理论原理，并介绍了有关热解生物油的石油学表征及其主要发现的研究概况。此外，本综述概述了可通过HRMS检测的生物油化合物结构的当前知识。这可以帮助我们更详细地了解生物油的化学组成，并有助于设计生物油提质和进一步利用的过程。