Abstract Residues of four different genotypes of sugarcane (Saccharum sp., Saccharum Robustum, Miscanthus sp. and Erianthus sp.), belonging to the Germplasm Bank of the Saccharum Complex (BAGCANA) from EMBRAPA, were subjected to a pyrolysis process and the bio-oils produced were analyzed by GC and GC × GC. The main objective was to start the studies in the integrated use of these residues (sugarcane straw and sugarcane bagasse) in view of a bio-refinery. The species Robustum, Miscanthus and Erianthus were compared with the cultivated variety of sugarcane (Saccharum sp.) because they are candidate to application as “energy-cane”, which is a sugarcane with higher amount of cellulose being cultivated for energetic purposes. The residues (straw and bagasse) are not adequately used and tend to be inadequately discarded, causing environmental impacts. However, if these residues be re-processed by pyrolysis, the produced bio-oil can be found many potential uses. The goal of this paper is to compare the amount and quality of bio-oils produced from these residues (bagasse and straw), intending to aggregate value to these materials and to indicate their best uses. The bio-oils were analyzed by GC × GC coupled to mass spectroscopy, allowing the detection and identification of their major constituents. Phenols were the main classes of identified compounds that can indicate the use of the bio-oil as alternative source of raw material for chemical industries. It is important to highlight that not only the straw but also the bagasse produced similar bio-oils, differing only in the relative amount of these compounds in the bio-oil, allowing an integrated utilization of these materials. The goal of this paper is to compare the amount and quality of bio-oils produced from these residues (bagasse and straw), intending to aggregate value to these materials and to indicate their best uses. The bio-oils were analyzed by GC × GC coupled to mass spectroscopy, allowing the detection and identification of their major constituents. Phenols were the main classes of identified compounds that can indicate the use of the bio-oil as alternative source of raw material for chemical industries. It is important to highlight that not only the straw but also the bagasse produced similar bio-oils, differing only in the relative amount of these compounds in the bio-oil, allowing an integrated utilization of these materials. The identified compounds are approximately the same in all the samples, differing only in the relative amount of these compounds in the bio-oils. The major compounds were slightly different in the studied bio-oils, but they can be represented by benzofuran-2,3-dihydro, 4-vinyl-guaiacol, syringol and 5-hydroxy-methyl-furfural. The aldehyde contents increased significantly in the Miscanthus and Erianthus bio-oils samples, mainly due to furfural derivatives, which are not found in the other samples. In addition, only the species Erianthus sp. presented yield in bio-oil superior to the commercial specie, which may indicate its use in the production of furfural and derivatives.

中文翻译：

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甘蔗渣（秸秆和甘蔗渣）的快速热解产生的生物油的色谱表征，来自四种基因型的甘蔗复合物

摘要 来自 EMBRAPA 的甘蔗复合体种质库 (BAGCANA) 的四种不同基因型甘蔗 (Saccharum sp.、Saccharum Robustum、Miscanthus sp. 和 Erianthus sp.) 的残留物经过热解过程和生物产生的油通过 GC 和 GC × GC 进行分析。主要目标是开始研究这些残留物（甘蔗秸秆和甘蔗渣）在生物精炼厂的综合利用。将 Robustum、Miscanthus 和 Erianthus 与栽培的甘蔗品种（Saccharum sp.）进行比较，因为它们是作为“能量甘蔗”应用的候选者，这种甘蔗具有更高的纤维素含量，用于能量目的。残留物（秸秆和甘蔗渣）没有得到充分利用，往往没有得到充分丢弃，造成环境影响。但是，如果这些残留物通过热解进行再加工，则可以发现生产的生物油具有许多潜在用途。本文的目的是比较这些残留物（甘蔗渣和稻草）生产的生物油的数量和质量，旨在汇总这些材料的价值并指出它们的最佳用途。生物油通过 GC × GC 与质谱联用进行分析，从而可以检测和鉴定其主要成分。酚类是已识别化合物的主要类别，可以表明使用生物油作为化学工业原材料的替代来源。需要强调的是，不仅秸秆和甘蔗渣都能产生类似的生物油，不同之处仅在于这些化合物在生物油中的相对含量，从而可以综合利用这些材料。本文的目的是比较这些残留物（甘蔗渣和稻草）生产的生物油的数量和质量，旨在汇总这些材料的价值并指出它们的最佳用途。生物油通过 GC × GC 与质谱联用进行分析，从而可以检测和鉴定其主要成分。酚类是已识别化合物的主要类别，可以表明使用生物油作为化学工业原材料的替代来源。重要的是要强调，不仅秸秆和甘蔗渣都能产生类似的生物油，不同之处仅在于生物油中这些化合物的相对量，从而可以综合利用这些材料。所有样品中鉴定出的化合物大致相同，仅在生物油中这些化合物的相对量不同。研究的生物油中的主要化合物略有不同，但它们可以由苯并呋喃-2,3-二氢、4-乙烯基愈创木酚、丁香酚和 5-羟基-甲基-糠醛代表。芒草和 Erianthus 生物油样品中的醛含量显着增加，主要是由于糠醛衍生物，在其他样品中没有发现。此外，只有物种 Erianthus sp。生物油的产量优于商业品种，这可能表明其在生产糠醛和衍生物中的用途。芒草和 Erianthus 生物油样品中的醛含量显着增加，主要是由于糠醛衍生物，在其他样品中没有发现。此外，只有物种 Erianthus sp。生物油的产量优于商业品种，这可能表明其在生产糠醛和衍生物中的用途。芒草和 Erianthus 生物油样品中的醛含量显着增加，主要是由于糠醛衍生物，在其他样品中没有发现。此外，只有物种 Erianthus sp。生物油的产量优于商业品种，这可能表明其在生产糠醛和衍生物中的用途。