Characteristics of intermetallic NdNi5 as an unsupported catalyst in thiophene hydrodesulfurization

被引：2

作者：

Moon, YH ^{[1
]}

Ihm, SK ^{[1
]}

机构：

[1] KOREA ADV INST SCI & TECHNOL,DEPT CHEM ENGN,TAEJON 305701,SOUTH KOREA

来源：

CATALYSIS LETTERS | 1996年 / 42卷 / 1-2期

关键词：

thiophene hydrodesulfurization (HDS); intermetallic compound NdNi5 (nickel/neodymium);

D O I：

10.1007/BF00814469

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：

A systematic research is carried out on intermetallic NdNi5 for the hydrodesulfurization (HDS) of thiophene. The effect of calcination and presulfidation of intermetallic NdNi5 on thiophene HDS was examined and property changes of the catalyst during calcination, presulfidation, and reaction were observed by XRD, SEM, and surface area techniques. The intermetallic compound of NdNi5 is disintegrated to fine powder and recrystallized to Nd/Ni oxide and sulfide by calcination, presulfidation, and reaction. A model for the surface area increase of the catalyst during calcination, presulfidation, and reaction was proposed and the role of neodymium was explained.

引用

页码：73 / 80

页数：8

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