Ethyl furfuryl ether (EFE) considered as potential biofuel can replace petroleum diesel up to 100%. EFE also has efficient blending properties with biodiesel to improve its cold flow properties. Herein we demonstrate efficient synthesis of EFE by etherification of renewable furfuryl alcohol (FAlc) with ethanol over heterogenized heteropoly acids. Cs-exchanged heterogenized heteropoly acid (H_3−xCs_xPW₁₂O₄₀, x = 0.5, 1, 2, 2.5) was prepared using ion exchange method. The H_3−xCs_xPW₁₂O₄₀ catalysts were well characterized by the XRD, BET, XPS, NH₃-TPAD and pyridine IR. The etherification of renewable FAlc with ethanol over H_3−xCs_xPW₁₂O₄₀; H₁Cs₂PW₁₂O₄₀ catalyst having moderate acidity of 786 µmol/g; and B/L of 3.6 have shown 65% EFE yield and low humin formation with after 98% FAlc conversion and catalyst was observed to be reusable for four cycles (fresh + 3 recycles).

乙基糠基醚（EFE）被认为是潜在的生物燃料，最多可替代100％的石油柴油。EFE还具有与生物柴油的高效共混性能，可改善其冷流性能。本文中，我们证明了通过异质杂多酸与乙醇将可再生糠醇（FAlc）醚化，可以有效合成EFE。 使用离子交换法制备Cs交换的杂化杂多酸（H _{3- x} Cs _x PW ₁₂ O ₄₀，x = 0.5、1、2、2.5）。通过XRD，BET，XPS，NH ₃很好地表征了H _{3- x} Cs _x PW ₁₂ O ₄₀催化剂-TPAD和吡啶IR。在H _{3− x} Cs _x PW ₁₂ O _40上用乙醇将可再生FAlc醚化。H ₁ Cs ₂ PW ₁₂ O ₄₀催化剂，中等酸度为786 µmol / g；B / L为3.6时，表明EFE产率为65％，FAlc转化率为98％后，腐殖质形成率较低，并且观察到催化剂可重复使用四个循环（新鲜+ 3个循环）。