Ni-sulfide particles in NaY-zeolite for combined hydrodesulfurization and hydrocracking purposes

被引：5

作者：

de Bont, PW

Vissenberg, MJ

Boellaard, E

de Beer, VHJ

van Veen, JAR

van Santen, RA

van der Kraan, AM

机构：

[1] Delft Univ Technol, Interfac Reactor Inst, NL-2629 JB Delft, Netherlands

[2] Eindhoven Univ Technol, Schuit Inst Catalysis, NL-5600 MB Eindhoven, Netherlands

来源：

HYPERFINE INTERACTIONS | 1998年 / 111卷 / 1-4期

关键词：

D O I：

10.1023/A:1012668609543

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The influence of physisorbed water on the formation of nickel-sulfide species in a Co-57 doped ion exchange type Co-57:NiNaY catalyst is studied by Mossbauer Emission Spectroscopy. The absence or presence of physisorbed water during sulfidation seems to have no influence on the local nickel environment of the formed Ni-sulfide species. This result is confirmed by EXAFS measurements. In spite of the resemblance found in MES and EXAFS a large difference is found for the initial HDS activities, which is explained by the different particle sizes (HREM) found at the outer surface of the zeolite.

引用

页码：39 / 44

页数：6

共 4 条

[1] MOSSBAUER EMISSION STUDY ON (57)Co DOPED CARBON-SUPPORTED Ni AND Ni-Mo SULFIDE HYDROTREATING CATALYSTS. THE INFLUENCE OF PHOSPHORUS ON THE STRUCTURE [J].