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| 摘要: |
| 研究了用于邻苯基苯酚（OPP）合成的Pt系脱氢催化剂。首先研究了原料环己酮二聚物在未改性Pt/Al2O3催化条件下的脱氢反应体系,发现除目的产物OPP外还存在可显著影响催化剂选择性的加氢产物、半脱氢产物以及裂解产物等三类主要副产物。根据副反应的特点,设计催化剂分别使用载体改性（包括K2O、MgO、CaO以及天然矿物KM等）、助剂改性（包括碱金属K、Na盐以及碱土金属Mg盐等）以及二者结合的复合改性工艺来提高其OPP选择性。结果 发现,载体改性以天然矿物KM的效果较好（OPP选择性超过80%）,而助剂改性则以碱金属K2CO3的性能最好（OPP选择性超过90%）,在此基础上使用复合改性工艺制备的0.5%Pt-3%K2CO3/15%KM-Al2O3催化剂具有最佳性能,在选定反应条件下其最高活性为二聚物转化率95.20%,OPP选择性95.01%。 |
| 关键词: 邻苯基苯酚 合成 脱氢 Pt |
| DOI： |
| 分类号:TQ241.11 |
| 基金项目: |
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| Design and Research of Pt-based Dehydrogenation Catalyst for the Synthesis of O-phenylphenol |
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Li Yanpeng1 Liu Dapeng2 Nan Jun1 et al
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| Abstract: |
| The Pt-based dehydrogenation catalyst for the synthesis of o-phenylphenol (OPP was studied in this paper. Firstly dehydrogenation system of the cyclohexanone's dimer over non-modified Pt/Al2O3 catalyst had been studied. There were three kinds of by-produc |
| Key words: o-phenylphenol, synthesis, dehydrogenation, Pt |
