考察了Ga2O3掺杂的Pt/WO3/ZrO2(Pt/WGZ)催化剂在200℃时正庚烷临氢异构化反应性能.结果表明,少量Ga2O3的加入能显著提高Pt/WGZ的催化活性,异构化选择性也有所增加,这是由于B酸位增加和B酸/L酸比的改变而引起的.Pt/WGZ催化剂连续反应80 h,正庚烷转化率和异构化选择性分别稳定在76%和94%.
参考文献
[1] | Kaufmann T G;Kaldor A;Stuntz G F;Kerby M C Ansell L L .[J].Catalysis Today,2000,62:77. |
[2] | Weyda H;K(o)hler E .[J].Catalysis Today,2003,81:51. |
[3] | Akhmedov VM;Al-Khowaiter SH .Recent advances and future aspects in the selective isomerization of high n-alkanes[J].Catalysis Reviews. Science and Engineering,2007(1):33-139. |
[4] | Chica A;Corma A .[J].Journal of Catalysis,1999,187:167. |
[5] | Arribas MA.;Martinez A.;Marquez F. .Activity, selectivity, and sulfur resistance of Pt/WOx-ZrO2 and Pt/Beta catalysts for the simultaneous hydroisomerization of n-heptane and hydrogenation of benzene[J].Journal of Catalysis,2000(2):309-319. |
[6] | 汪颖军,张海菊,孙博,田性刚.正庚烷异构化双功能催化剂的研究进展[J].石油化工,2008(09):960-966. |
[7] | Iglesia E;Soled S L;Kramer G M .[J].Journal of Catalysis,1993,144:238. |
[8] | Iglesia E;Barton D G;Soled S L;Miseo S Baumgartner J E Gates W E Fuentes G A Meitzner G D .[J].Studies in Surface Science and Catalysis,1996,101:533. |
[9] | Hua W M;Sommer J .[J].Applied Catalysis A:General,2002,232:129. |
[10] | Liu Y;Guan Y J;Li C;Lian J Gan G J Lim E C Kooli F .[J].Journal of Catalysis,2006,244:17. |
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