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Φ３８×３；５×２０００的不锈钢固定床积分反应器中对ＣｕＣｒＫ／γ－Ａｌ_２Ｏ_３（组成为ＣｕＯ２０ｗｔ％，Ｃｒ_２Ｏ_３５ｗｔ％，Ｋ_２ＣＯ_３１６ｗｔ％．其余为γ－Ａｌ_２Ｏ_３）进行了活性测试．测试条件为：催化剂尺寸φ２．５×２．５～３．５，负荷０．０８ｇ糠醛／ｇ·催化剂·ｈ．反应温度１３０～２１０℃，压力为常压．在这些条件下，催化反应共９８４ｈ，糠醛转化率高于９８．５％，糠醛选择性高于９８．５％．对失活后的催化剂进行了氧化再生．２００℃以下氧化再生主要是聚合物和氧作用，生成糠醛、糠醇，并脱除掉；２００～３００℃温度范围内的氧化再生是聚合物和氧作用生成ＣＯ_２和水．氧化再生过程中Ｃｕ￣０基本上未被氧化，大部分铜仍以Ｃｕ￣０的形式存在．
Φ38 × 3; 5 × 2000 stainless steel fixed-bed integral reactor. The activity of CuCrK / γ-Al_2O_3 (composed of CuO20wt%, Cr_2O_35wt%, K_2CO_316wt% and the balance of γ-Al_2O_3) was tested. The test conditions were: catalyst size φ 2.5 × 2.5 to 3.5, load 0.08 g furfural / g · catalyst · h. The reaction temperature is 130 ~ 210 ℃, the pressure is atmospheric pressure. Under these conditions, the catalytic reaction for a total of 984h, furfural conversion was higher than 98.5%, furfural selectivity higher than 98.5%. The deactivated catalyst was oxidatively regenerated. Oxidative regeneration below 200 ℃ is mainly the action of polymer and oxygen to generate furfural and furfuryl alcohol, and is removed. Oxidative regeneration in the temperature range from 200 ℃ to 300 ℃ generates CO_2 and water by the action of polymer and oxygen. During oxidation and regeneration, Cu ~ 0 is not oxidized, and most of Cu is still in Cu ~ 0.