Attrition Resistance of Supports for Iron Fischer-Tropsch Catalysts
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- 作者：Hien N. Pham ; Lech Nowicki ; Jian Xu ; Abhaya K. Datye ; Dragomir B. Bukur ; and Calvin Bartholomew
- 刊名：Industrial & Engineering Chemistry Research
- 出版年：2003
- 出版时间：August 20, 2003
- 年：2003
- 卷：42
- 期：17
- 页码：4001 - 4008
- 全文大小：370K
- 年卷期：v.42,no.17(August 20, 2003)
- ISSN：1520-5045
文摘
Seven commercially available aluminas and silicas were screened for their potential use assupports for preparing attrition-resistant iron Fischer-Tropsch (F-T) catalysts. First we usedultrasonic irradiation to determine the attrition resistance of these supports. Among the supportstested, one alumina support and two silica supports were found to possess adequate attritionresistance. These supports were then tested in a stirred tank slurry reactor (STSR) undernonreactive conditions, using N2 gas at 260 
C, 1.5 MPa, and 3 L(STP)/(g of catalyst)·h. Particlesize distributions of these supports provided a measure of attrition during simulated F-Tsynthesis runs. Particle size distributions allow us to infer the extent of fracture and erosionduring attrition tests. Our work showed that the ultrasonic irradiation test was less severe thanthe STSR test in terms of generation of small (1-10 
m) particles (erosion).
C, 1.5 MPa, and 3 L(STP)/(g of catalyst)·h. Particlesize distributions of these supports provided a measure of attrition during simulated F-Tsynthesis runs. Particle size distributions allow us to infer the extent of fracture and erosionduring attrition tests. Our work showed that the ultrasonic irradiation test was less severe thanthe STSR test in terms of generation of small (1-10 m) particles (erosion).