MODIFICATION OF ISOMERIZATION ACTIVITY AND SELECTIVITY OVER SULFATED ZIRCONIA CATALYSTS

被引：0
|
作者：
SOLED, SL [1 ]
IGLESIA, E [1 ]
KRAMER, GM [1 ]
机构：
[1] UNIV CALIF BERKELEY,DEPT CHEM ENGN,BERKELEY,CA 94720
来源：
ACID-BASE CATALYSIS II | 1994年 / 90卷
关键词：
D O I：
暂无
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Alkane isomerization over Pt/ZrO2/SO4= shows a positive hydrogen kinetic order, suggesting the reaction proceeds via chain transfer pathways, rather than by conventional bifunctional (metal-acid) sequences. Adamantane, a molecular hydride transfer agent, when added in small quantities to n-heptane feeds increases isomerization rates while inhibiting cracking reactions. The faster hydride transfer rates and accompanying shorter carbocation surface residence times decrease secondary cracking. This effect differs significantly from acid site poisoning by aromatic molecules, which decreases both isomerization and cracking rates.
引用
收藏
页码：531 / 536
页数：6
相关论文
共 50 条
  • [1] MODIFICATION OF ISOMERIZATION ACTIVITY AND SELECTIVITY OVER SULFATED ZIRCONIA CATALYSTS
    SOLED, SL
    IGLESIA, E
    KRAMER, GM
    MCVICKER, GB
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1993, 205 : 5 - CATL
  • [2] Butane isomerization over platinum promoted sulfated zirconia catalysts
    Liu, H
    Adeeva, V
    Lei, GD
    Sachtler, WMH
    JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 1995, 100 (1-3) : 35 - 48
  • [3] Pentane and butane isomerization over platinum promoted sulfated zirconia catalysts
    Liu, H
    Lei, GD
    Sachtler, WMH
    APPLIED CATALYSIS A-GENERAL, 1996, 146 (01) : 165 - 180
  • [4] Catalytic cycles for isobutane isomerization over sulfated-zirconia catalysts
    Fogash, KB
    Hong, Z
    Dumesic, JA
    CATALYSIS LETTERS, 1998, 56 (2-3) : 85 - 93
  • [5] Catalytic cycles for isobutane isomerization over sulfated-zirconia catalysts
    K.B. Fogash
    Z. Hong
    J.A. Dumesic
    Catalysis Letters, 1998, 56 : 85 - 93
  • [6] Influence of hydrogen on n-butane isomerization over sulfated zirconia catalysts
    Song, SX
    McIntosh, DJ
    Kydd, RA
    CATALYSIS LETTERS, 2000, 65 (1-3) : 5 - 7
  • [7] Influence of hydrogen on n-butane isomerization over sulfated zirconia catalysts
    Steven X. Song
    Debra J. McIntosh
    Ronald A. Kydd
    Catalysis Letters, 2000, 65 : 5 - 7
  • [8] Effects of copper on the activity of sulfated zirconia catalysts for n-pentane isomerization
    Occelli, ML
    Schiraldi, DA
    Auroux, A
    Keogh, RA
    Davis, BH
    APPLIED CATALYSIS A-GENERAL, 2001, 209 (1-2) : 165 - 177
  • [9] Kinetics and deactivation of sulfated zirconia catalysts for butane isomerization
    Fogash, KB
    Larson, RB
    Gonzalez, MR
    Kobe, JM
    Dumesic, JA
    JOURNAL OF CATALYSIS, 1996, 163 (01) : 138 - 147
  • [10] Temperature imposed textural and surface synergism affecting the isomerization activity of sulfated zirconia catalysts
    Zarubica, Aleksandra
    Jovic, Branislav
    Nikolic, Aleksandar
    Putanov, Paula
    Boskovic, Goran
    JOURNAL OF THE SERBIAN CHEMICAL SOCIETY, 2009, 74 (12) : 1429 - 1442
12345