研究4种均相催化剂RuCl2(PPh3)3、RhCl(PPh3)3、PdCl2(PPh3)2及NiCl2(PPh3)2各自对生物油催化加氢的活性,并对精制前后生物油中各类物质变化进行分析。结果表明,4种催化剂对醛、酮、酚及酸等转化均有一定的催化活性,其中RuCl2(PPh3)3可将90%以上的醛加氢转化,并对50%以上的酚类支链中的C C加氢;RhCl(PPh3)3则可将约85%的酚类支链上的C C加氢;后两种催化剂除了对醛酚有一定的催化加氢作用外,对酸转化为酯也具有催化活性。实验中未发现结焦物生成,说明均相催化技术非常适合精制生物油这种高热敏性体系。 The catalytic activities of 4 kinds of homogeneous catalysts RuCl2 (PPh3) 3, RhCl (PPh3) 3, PdCl2 (PPh3) 2 and NiCl2 (PPh3) 2 on the catalytic hydrogenation of bio-oil were studied. Analyze. The results show that the four catalysts have certain catalytic activity for the conversion of aldehydes, ketones, phenols and acids. Among them, RuCl2 (PPh3) 3 can convert 90% or more of the aldehydes to hydrogenation, and more than 50% Of the CC hydrogenation; RhCl (PPh3) 3 can be about 85% of the phenolic branched CC on the hydrogenation; the latter two catalysts in addition to the catalytic role of hydroformylation of phenol, the acid into esters Also has catalytic activity. No coke formation was found in the experiment, which indicates that the homogeneous catalytic technique is very suitable for high heat sensitive system such as refined bio-oil.