Furanic compounds such as 5-hydroxymethylfurfural (HMF) and furfural (FF) obtained from biomass have emerged as important industrial chemical platforms. In this sense, the present study aimed to evaluate the economical use of crude biomass of rice husk (RH), cupuaçu peel (CP), and pequi peel (PP) to obtain furanic compounds such as HMF and FF, using the ionic liquid 1-butyl-3-methylimidazolium chloride ([BMIM][Cl]) and the catalyst chromium(III) chloride hexahydrate (CrCl₃.6H₂O). The results of the analysis showed that biomasses have potential for use in biorefineries; however, the most promising among those is the RH, due to the significant content of holocellulose. The optimization of hydrolysis through the methodology developed by Dunning and Dallas (1949) made it possible to obtain significant levels of glucose (14.28%), xylose (3.81%), and arabinose (0.93%). The obtained products were analyzed by Fourier transform infrared spectrophotometry (FT-IR) and high-performance liquid chromatography (HPLC). The best yields for RH obtained were 1.92% (HMF) and 2.89% (FF). From the results obtained, it can be concluded that the RH has a good capacity for producing value-added compounds in biorefineries.

从生物质获得的呋喃化合物（例如5-羟甲基糠醛（HMF）和糠醛（FF））已成为重要的工业化学平台。从这个意义上讲，本研究旨在评估使用离子液体1的稻壳（RH），cupuaçu果皮（CP）和pequi果皮（PP）粗生物质的经济利用，以获得呋喃化合物，例如HMF和FF。丁基-3-甲基咪唑鎓氯化物（[BMIM] [Cl]）和催化剂六水合氯化铬（III）（CrCl ₃ .6H ₂O）。分析结果表明，生物质具有用于生物精炼厂的潜力。然而，由于全纤维素含量高，其中最有希望的是相对湿度。通过Dunning和Dallas（1949）开发的方法对水解进行了优化，从而可以获得大量的葡萄糖（14.28％），木糖（3.81％）和阿拉伯糖（0.93％）。通过傅立叶变换红外分光光度法（FT-IR）和高效液相色谱法（HPLC）分析获得的产物。相对湿度的最佳产率为1.92％（HMF）和2.89％（FF）。从获得的结果可以得出结论，相对湿度具有在生物精炼厂生产增值化合物的良好能力。