Subject Area物理化学
Metal-containing molecular sieves as catalysts for the selective oxidation of cyclohexane by oxygen
Tian P(田鹏); Liu ZM(刘中民); Wu ZB(吴宗斌); Xu L(许磊); He YL(何艳丽)
Conference Name3rd Asia-Pacific Congress on Catalysis
Conference Date2003-10-12
Conference Place中国
Alternative Title杂原子分子筛催化环己烷分子氧氧化反应
Funding Organization大连化物所
AbstractThree types of metal-containing molecular sieves with AFI, AEL and CHA structure were hydrothermally synthesized. Metals (Co, Mn, Cr, V) were incorporated into the molecular sieves framework and induced the appearance of charge centers, as evidenced by TG and NH3-TPD. TPR studies revealed that cobalt and manganese in the framework were not reducible before the structure collapse. The redox behavior of these catalysts in cyclohexane oxidation at 403K and 1.1MPa O2 were investigated. CoAPO-11 exhibited best activity and good selectivity of monofunctional oxidation products (88.5%). Cyclohexanol was preferable product on most catalysts, whereas for CrAPO-5, 11, high selectivity of cyclohexanone was observed. Experimental results indicated that the decomposition of cyclohexyl hydroperoxide (CHHP), the intermediate in cyclohexane oxidation, followed the pathway: cyclohexanone←CHHP→cyclohexanol (then cyclohexanol→cyclohexanone).
WOS IDWOS:000227357202074
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Document Type会议论文
Corresponding AuthorLiu ZM(刘中民)
Recommended Citation
GB/T 7714
Tian P,Liu ZM,Wu ZB,et al. Metal-containing molecular sieves as catalysts for the selective oxidation of cyclohexane by oxygen[C],2003:866/2.
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