Abstract The aim of the study was to evaluate the effect of kraft lignin on the physicomechanical qualities of briquettes produced with sugarcane bagasse and on the chemical characteristics of the bio-oil obtained at different temperatures via slow pyrolysis. The ratios of kraft lignin to the sugarcane bagasse mass were 0%, 10%, 25% and 50%. The briquetting was performed at 140 °C temperature and at a pressure of 17 MPa for 8 min. The physicomechanical characteristics such as bulk density, longitudinal expansion and compressive strength were determined. The combustibility of the briquettes was tested, and the briquette slow pyrolysis was performed in 300 °C, 400 °C and 500 °C for 1 h. The results showed the influence of kraft lignin on the bulk density and on the mechanical strength for compression. In the combustibility test was obtained higher temperatures and more uniform burning in the briquettes with addition of lignin. In the bio-oil composition obtained via pyrolysis at 500 °C, the highest yields of phenolic compounds were obtained. The kraft lignin is a raw material with the potential to be used as both a binder in compressed products and an additive for the production of bio-oil with valuable phenolic compounds.

中文翻译：

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硫酸盐木质素对甘蔗渣制煤球物理机械质量和慢热解生物油特性的影响

摘要 本研究的目的是评估硫酸盐木质素对用甘蔗渣生产的煤球物理机械特性的影响，以及对不同温度下缓慢热解获得的生物油的化学特性的影响。硫酸盐木质素与甘蔗渣质量的比例为0%、10%、25%和50%。压块在 140 °C 温度和 17 MPa 压力下进行 8 分钟。测定了物理机械特性，例如堆积密度、纵向膨胀和抗压强度。测试了煤球的可燃性，煤球缓慢热解在300℃、400℃和500℃下进行1h。结果表明牛皮纸木质素对堆积密度和压缩机械强度的影响。在可燃性试验中，加入木质素的煤球获得更高的温度和更均匀的燃烧。在通过 500 °C 热解获得的生物油组合物中，酚类化合物的产量最高。牛皮纸木质素是一种原材料，有可能用作压缩产品的粘合剂和生产含有有价值酚类化合物的生物油的添加剂。