Vapor phase catalytic dehydration of 1,4-BDO to tetrahydrofuran was investigated over activated red brick as green catalyst at 375 °C, exhibited highest THF selectivity 100% at complete conversion of 1,4-BDO under atmospheric pressure. The intrinsic catalytic activity of red brick catalyst was attributed to the synergy of higher Bronsted acidic sites and moderate Lewis acidic sites of SiO₂ and Fe₂O₃, as confirmed by Pyridine FT-IR and NH₃-TPD. The physico-chemical properties were evaluated from XRD, SEM-EDX, FT-IR, UV–vis DRS, ICP-MS and XRF techniques. The high catalytic efficiency was confirmed through steady time-on-stream and activity comparison studies against conventional catalysts.

以活化的红砖作为绿色催化剂，在375°C下研究了1,4-BDO汽相催化脱水成四氢呋喃，在大气压下1,4-BDO完全转化时，THF选择性最高，为100％。吡啶FT-IR和NH ₃ -TPD证实了红砖催化剂的固有催化活性归因于SiO ₂和Fe ₂ O ₃的较高布朗斯台德酸性位点和中等路易斯酸位点的协同作用。通过XRD，SEM-EDX，FT-IR，UV-DRS，ICP-MS和XRF技术对理化性质进行了评估。通过与常规催化剂的稳定运行时间和活性比较研究，证实了高催化效率。