Bio-oil from the fast pyrolysis of agro-residues still needs to contemplate different production scenarios to look for its feasibility. For this reason, in this work the effect of a range of fast pyrolysis temperature (450, 480, 510 and 550 °C) processing rape straw biomass (with high K content) has been studied in a continuous bubbling fluidised bed reactor. It was found that the catalytic effect of the inorganic content was different at each fast pyrolysis temperature, with the lower temperatures resulting in the highest yield of bio-oil due to minor catalytic effect (up to 41.39 wt%). It was also found that at 480 °C the bio-oil presented the best combination of physico-chemical features such as non-separation phase and the lowest water content; yield (39.65 wt%) and HHV (19.23 MJ/kg), containing a high concentration of phenolic compounds. At the fast pyrolysis temperature of 510 °C and 550 °C, the conjunction effect of temperature and the catalytic effect provoked bio-oil separation into two phases and a higher gas yield than was expected. Then, the higher temperatures are not suitable for bio-oil production. Char is also an interesting co-product for all pyrolysis temperatures.

中文翻译：

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温度对高灰分生物质快速热解产品性能的影响及其生物储油评价

来自农业残留物快速热解的生物油仍需要考虑不同的生产方案以寻找其可行性。出于这个原因，在这项工作中，在连续鼓泡流化床反应器中研究了一系列快速热解温度（450、480、510 和 550 °C）处理油菜秸秆生物质（高钾含量）的影响。发现无机成分的催化作用在每个快速热解温度下是不同的，较低的温度导致由于较小的催化作用（高达 41.39 wt%）导致生物油的最高产率。还发现，在 480 °C 时，生物油呈现出最佳的物理化学特征组合，例如非分离相和最低含水量；产量 (39.65 wt%) 和 HHV (19.23 MJ/kg)，含有高浓度的酚类化合物。在510℃和550℃的快速热解温度下，温度和催化作用的共同作用促使生物油分离成两相，产气率高于预期。那么，较高的温度不适合生物油生产。对于所有热解温度，炭也是一种有趣的副产品。