高等学校化学学报 ›› 1991, Vol. 12 ›› Issue (3): 397.

• 论文 • 上一篇    下一篇

含镍云母蒙脱石及其交联物的正己烷加氢异构性能

刘子阳1, 蒋大振1, 蔡辉1, 蔡红伟1, 闵恩泽2   

  1. 1. 吉林大学化学系, 130023;
    2. 北京石油化工科学研究院
  • 收稿日期:1989-07-26 出版日期:1991-03-24 发布日期:1991-03-24
  • 通讯作者: 蒋大振

The Hydroisomcrization Nature of Nickel-Substituted Mica Montmorillonite and Its Silica Oligomcrs Filtered Clay in Hexane Reaction

Liu Zi-yang1, Jiang Da-zhen1, Cai Hui1, Cai Hong-wei1, Min En-ze2   

  1. 1. Department of Chemistry, Jitin Unixeisity, Changchun, 130023;
    2. Research Institute of Petroleum Processing, Beijing
  • Received:1989-07-26 Online:1991-03-24 Published:1991-03-24

摘要: 交联粘土是一类新的具有规则孔结构的大孔分子筛,对其酸性及孔结构的研究已有报道。本文报道镍同晶置换T-O-T片八面体层中的铝,并用丙氨基三乙氧基硅烷水解物与其交联制得PNiSMM,再浸上Pd后考察Pd-NiSMM和Pd-PNiSMM对正己烷的加氢异构性能。

关键词: 镍云母蒙脱石, 交联, 加氢异构

Abstract: Synthesis of nickel-substituted mica-montmorillonite (NiSMM) was carried out by hy-drothermal mathod. NiSMM was crosslinked with NH2C3H7Si(OCH3)3to yield thermally stable clay (PNiSMM). The hydroisomerization of n-hexane on Pd-impregnated and PNiSMM was observed.It was found that the catalysts reduced by H2at 386℃ are highly active for the isomerization. New strong Bronsted acid sites are formed and strong Lewis acid sites are consumed during the reduction of the catalysts. These facts imply that the highly acidic Bronsted sites are perhaps responsible for the high isomerzation activity. The amount of Pd-impregnated on the catalysts is relative to the activity and the selectivity. This fact implies that the nature of the cluster composed of Ni and Pd atoms seems to be correlative with the properties of the catalysts if metal sites are responsible for the dehydro-genation of alkane.

Key words: NiSMM, Cross-linking, Hydroisomerization

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