中文摘要：

对竹子碱木素进行了催化湿空气氧化降解。结果表明,竹子碱木素催化湿空气氧化的主要降解产物为3种芳香醛,含量从高到低依次为香草醛、对羟基苯甲醛和丁香醛。芳香醛浓度随降解时间的增加先升高后降低;催化剂的使用对芳香醛浓度有显著的影响,但不改变3种芳香醛的含量相对大小顺序;催化剂能较大地提高芳香醛的最高浓度,且能明显缩短芳香醛浓度达到极大值的时间;与无催化剂或蒽醌（AQ）作为催化剂相比,CuSO4/FeCl3作为催化剂时,能使芳香醛的浓度提高1倍以上,香草醛、对羟基苯甲醛、丁香醛的最高浓度分别为1.34、1.07、0.59 g/L,总芳香醛的最高浓度为2.87 g/L。

英文摘要：

In this paper,bamboo alkaline lignin was degraded by catalytic wet air oxidation（CWAO）.The results showed that three aromatic aldehydes were the main products,and their concentrations from high to low were as follows： vanillin,p-hydroxy benzaldehyde and syringaldehyde,which was considered as a feature of bamboo alkaline lignin;The concentrations of aromatic aldehydes increased at first and then decreased when the reaction time increased;Catalysts had a significant effect on the concentrations of aromatic aldehydes,but did not change the relative content of them;Using CuSO4/FeCl3 as catalysts,the concentrations of aromatic aldehydes were doubled comparing to no catalyst or using AQ as catalyst,and the concentrations of vanillin,p-hydroxy benzaldehyde and syringaldehyde were 1.34、1.07、0.59 g/L respectively while the total concentration of aromatic aldehydes was 2.87 g/L.