Bio-oil is a promising source of chemicals and renewable fuels. As the liquid phase obtained from the pyrolysis of biomass, the composition and amount of bio-oil generated depend not only on the type of the biomass but also on the conditions under which pyrolysis is performed. Most fossil fuels can be replaced by bio-oil-derived products. Thus, bio-oil can be used directly or co-fed along with fossil fuels in boilers, transformed into fuel for car engines by hydrodeoxygenation or even used as a more suitable source for H₂ production than biomass. On the other hand, due to its rich composition in compounds resulting from the pyrolysis of cellulose, hemicellulose and lignin, bio-oil co-acts as a source of various value-added chemicals such as aromatic compounds. This review presents an overview of the potential applications of bio-oils and the pyrolysis conditions under which they are obtained. Then, different extraction methods for value-added chemicals, along with the most recent developments, are discussed and future research directions for bio-oil upgrades are highlighted.

中文翻译：

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从农业食品废料中获得的生物油中的生物柴油和其他增值产品

生物油是化学和可再生燃料的有前途的来源。作为从生物质热解获得的液相，所产生的生物油的组成和量不仅取决于生物质的类型，还取决于进行热解的条件。大多数化石燃料可以由生物油衍生的产品替代。因此，生物油可以直接或与化石燃料一起在锅炉中使用，通过加氢脱氧转化为汽车发动机燃料，甚至可以用作更合适的H ₂来源。产量高于生物质。另一方面，由于其富含纤维素，半纤维素和木质素的热解化合物，生物油共同充当各种增值化学品（如芳香族化合物）的来源。这篇综述概述了生物油的潜在应用和获得它们的热解条件。然后，讨论了增值化学品的不同提取方法，以及最新的发展，并着重指出了生物油升级的未来研究方向。