| 用于合成邻苯基苯酚的新型覆炭脱氢催化剂 |
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| 引用本文： | 卫延安,蔡春,吕春绪.用于合成邻苯基苯酚的新型覆炭脱氢催化剂[J].石油化工,2004,33(2):109-112. |
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| 作者姓名： | 卫延安 蔡春 吕春绪 |
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| 作者单位： | 南京理工大学,化工学院,江苏,南京,210094 |
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| 摘 要： | 以贵金属Pt为脱氢活性组分 ,钾为助催化剂 ,以覆炭γ -Al2 O3 复合材料 (CCA )为载体 ,制备出合成邻苯基苯酚 (OPP)的脱氢催化剂 ,并对催化剂的活性进行了评价。为提高OPP的选择性 ,选用CS2 对催化剂进行预中毒实验。结果表明 ,Pt/CCA催化剂的脱氢活性与稳定性均优于以γ -Al2 O3 为载体的Pt催化剂。当所用催化剂载体覆炭质量分数为 1 5% ,催化剂中w(Pt) =0 5% ,w (K2 O ) =1 % ,CS2 的用量与催化剂中Pt的质量比为 1 / 1 0 0 ,在 350℃反应时 ,OPP的选择性可以达到 96 % ,收率在 92 %以上
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| 关 键 词： | 催化剂 覆炭 载体 预中毒 脱氢 邻苯基苯酚 |
| 文章编号： | 1000-8144(2004)02-0109-04 |
| 修稿时间： | 2003年10月13 |
Performance of New Catalyst Supported on Carbon Covered Alumina for Preparing o-Phenylphenol |
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| Abstract: | Pt with K 2O as promoter supported by carbon covered γ-Al 2O 3 (CCA) wer e prepared and used as dehydrogenation catalyst for obtaining o-phenylpheno l f rom cyclohexenyl cyclohexanone.For the sake of improving catalyst activity,the c atalyst was pre-poisoned by CS 2.Performance of catalyst supported on carbon cov ered γ-Al 2O 3 was better than that supported on γ-Al 2O 3.Catalyst co nsisted of w (Pt)=0.5%,w (K 2O)=1% and m(CS 2 )/m(Pt) was 1/100.Selectivity of o-phenylp henol reached higher than 96% under certain reaction conditions at 350 ℃. |
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| Keywords: | catalyst carbon covered support pre-poisoned dehydrogenation o-pheny lphenol |
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