Abstract Furans, such as furfural (FF) and 5-hydroxymethyl-furfural (HMF), are recognised as target high-value chemicals produced through catalytic fast pyrolysis (CFP) of biomass. In this work, a series of SAPO type catalysts were introduced in the CFP of cellulose to promote the generation of furans. Results indicate that under the catalysis of SAPO type catalysts, the formation of furans is promoted while the content of sugars decreases considerably. AlCu-SAPO-34 and ZrCu-SAPO-18 performed best for furan formation: their furans peak area% was 56.94% and 63.86%, respectively. Furthermore, these two catalysts had more mild acidity (lower density and strength), which favoured the formation of furans. Meanwhile, 500–600 °C was selected as the optimum operation temperature when using SAPO catalysts. The formation of furans with SAPO type catalysts may be favoured because the catalyst promotes the direct conversion of oligosaccharides to furans.

中文翻译：

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SAPO型催化剂催化纤维素快速热解制备呋喃化合物

摘要 呋喃，如糠醛 (FF) 和 5-羟甲基-糠醛 (HMF)，被认为是通过生物质催化快速热解 (CFP) 生产的目标高价值化学品。在这项工作中，一系列 SAPO 型催化剂被引入到纤维素的 CFP 中以促进呋喃的产生。结果表明，在SAPO型催化剂的催化作用下，促进了呋喃的形成，同时糖的含量显着降低。AlCu-SAPO-34 和 ZrCu-SAPO-18 对呋喃形成效果最好：它们的呋喃峰面积百分比分别为 56.94% 和 63.86%。此外，这两种催化剂具有更温和的酸性（较低的密度和强度），有利于呋喃的形成。同时，选择 500-600 °C 作为使用 SAPO 催化剂时的最佳操作温度。