| 第 32 卷第 3 期 |  | Vol. 32 No. 3 | | 2002 年 6 月 | Jun 2002 |
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所屬欄目：其它
環(huán)己烷部分裂解氧化催化劑研究 |
| 周小平; 蔡炳新; 張海洲(湖南大學(xué)化學(xué)化工學(xué)院; 湖南長(cháng)沙; 410082) |
| 摘 要：用浸漬法制備了V2 O5/SiO2 、P K V/SiO2 、Cr K V/SiO2 、Mo K V /SiO2 和Fe K V/SiO2 幾種固體樣品 ,作為環(huán)己烷的催化裂化、氧化反應的催化劑。研究表明在V2 O5/SiO2上添加某些助劑后 ,使其脫氫、供氫、供氧中心得到改善 ,明顯地抑制了深度裂解與氧化作用。Cr K V/SiO2 和Fe K V/SiO2 表面具有較強的脫氫中心和較弱的供氧中心 ,組成了適應于環(huán)己烷的部分裂化、氧化的活性中心 ,表現出較好的催化活性。 |
| 關(guān)鍵詞：五氧化二釩; 環(huán)己烷; 裂化; 氧化 |
| 中圖分類(lèi)號：TA231.1 文獻標識碼：A 文章編號：1009-9212(2002)03-0016-02 |
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| A Study on the Catalysts in the Part Cracking and Oxidation Reaction of Cyclohexane |
| Zhou Xiao-ping; et al （Chemistry and Chemical Engineering College of Hunan University; Changsha 410082; China） |
| Abstract：Some catalysts such as V 2O 5/SiO 2,P-K-V/SiO 2,Cr-K-V/SiO 2?Mo-K-V/SiO 2 and Fe-K-V/SiO 2 were prepared with impregnation method and they were used to the reaction of catalytical cracking and oxidation of cyclohexane.It is found that those catalysts supporting some cation on the V 2O 5/SiO 2 inhibit the deep cracking oxidation of cyclohexane obviously.On the surface of the two catalysts of Cr-K-V/SiO 2 and Fe-K-V/SiO 2, there are more active dehydrogenation centers and the lest active centers o... |
| Key words：vanadium pentoxide; cyclohexane; cracking; oxidation |
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收稿日期：2001-10-18
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