通过比较正庚烷(n-C7)与正十四烷(n-C14)的临氢异构化反应,探讨了正构烷烃在0.4%Pt/SAPO-11催化剂上临氢异构化的反应历程.在低转化率下即产生裂解产物的实验结果支持质子环丙烷(PCP)作用机理,提出了在一次反应中就生成裂解产物的观点.通过分析n-C7与n-C14临氢异构产物的分布,认为异构化过程主要发生在分子筛孔道内.根据n-C7与n-C14呈现相同的反应规律,将加氢转化过程中链长超过C10的烷烃的正碳离子反应的相对速率与链长无关的观点扩展到C7,并在传统反应历程的基础上提出了修正的烷烃异构化反应历程.
参考文献
[1] | Campelo J M;Lafont F;Marinas J M .[J].Applied Catalysis A:General,1997,152(01):53. |
[2] | Girgis M J;Tsao Y P .[J].Industrial and Engineering Chemistry Research,1996,35(02):386. |
[3] | Huang W G;Li D D;Shi Y H;Kang X H Meng X B Wang K Dong W Zh Nie H Li C .[J].Chinese Journal of Catalysis(in Chinese),2003,24(09):651. |
[4] | Souverijns W.;Froment GF.;Jacobs PA.;Martens JA. .Hydrocracking of isoheptadecanes on Pt/H-ZSM-22: An example of pore mouth catalysis[J].Journal of Catalysis,1998(2):177-184. |
[5] | Martens J A;Vanbutsele G;Jacobs P A;Denayer J,Ocakoglu R,Baron G,Munoz Arroyo J A,Thybaut J,Marin G B .[J].Catalysis Today,2001,65(2-4):111. |
[6] | Arroyo J A M;Martens G G;Froment G F .[Q].Jacobs P A |
[7] | Zhang F;Geng Ch H;Gao Zh X;Zhang X Zh,Zhou J L.[A].Hangzhou:Zhejiang Univ Press,2000:92002.313. |
[8] | Zhang F;Geng Ch H;Gao Zh X;Zhou J L .石油化工高等学校学报[J].J Petrochemical Universityies,2004,17(02):47. |
[9] | Campelo JM.;Marinas JM.;Lafont F. .HYDROISOMERIZATION AND HYDROCRACKING OF N-HEPTANE ON PT/SAPO-5 AND PT/SAPO-11 CATALYSTS[J].Journal of Catalysis,1995(1):11-18. |
[10] | 王利军,黄茜丹,赵伟,李全芝.SAPO-11分子筛改进合成及正十二烷加氢异构化性能[J].化学学报,2002(06):1122-1124. |
[11] | Campelo J M;Lafont F;Marinas J M;J Chem Soc .[J].Faraday Transactions,1995,91(10):1551. |
[12] | Sie S T .[J].Industrial and Engineering Chemistry Research,1993,32(03):403. |
[13] | Campel J M;Lafont F;Marinas J M .[J].Applied Catalysis A:General,1998,170(01):139. |
[14] | Meriaudeau P.;Nghiem VT.;Lai SY.;Hung LN.;Naccache C.;Tuan VA. .SAPO-11, SAPO-31, AND SAPO-41 MOLECULAR SIEVES - SYNTHESIS, CHARACTERIZATION, AND CATALYTIC PROPERTIES IN N-OCTANE HYDROISOMERIZATION[J].Journal of Catalysis,1997(1):55-66. |
[15] | Liu Y M;Zhang F M;Shu X T;He M Y .[J].Chinese Journal of Catalysis(in Chinese),2003,24(10):779. |
[16] | Martens J A;Jacobs P A;Weitkamp J .[J].Applied Catalysis,1986,2091/2(239) |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%