ANISOTROPIC DIFFUSIVITIES IN PRESSED BOEHMITE PELLETS

被引:18
作者
CADLE, PJ
SATTERFI.CN
机构
[1] Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge
来源
INDUSTRIAL & ENGINEERING CHEMISTRY FUNDAMENTALS | 1968年 / 7卷 / 02期
关键词
D O I
10.1021/i160026a003
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The effective diffusivity in pellets pressed from powdered boehmite varied by a factor of as much as 3 or 4 with axial distance through the compact. Results are interpreted in terms of the density distribution pattern. Pellet shape and size significantly affect diffusivity in that they influence the porous structure; consequently, measurements made on one pellet size are not necessarily applicable to the same material in another pellet size or shape even when the pellets have the same density. © 1968, American Chemical Society. All rights reserved.
引用
收藏
页码:192 / &
相关论文
共 11 条
[1]   UNIFORMITY OF DIFFUSIVITY IN A NICKEL BASE STEAM-HYDROCARBON REFORMING CATALYST [J].
CADLE, PJ ;
SATTERFI.CN .
INDUSTRIAL & ENGINEERING CHEMISTRY FUNDAMENTALS, 1968, 7 (02) :189-&
[2]  
CADLE PJ, 1966, THESIS MASSACHUSETTS
[3]   DIFFUSION OF GASES IN POROUS MEDIA [J].
DYE, RF ;
DALLAVALLE, JM .
INDUSTRIAL AND ENGINEERING CHEMISTRY, 1958, 50 (08) :1195-1200
[4]   DIFFUSION RATES IN POROUS CATALYSTS [J].
HENRY, JP ;
CHENNAKESAVAN, B ;
SMITH, JM .
AICHE JOURNAL, 1961, 7 (01) :10-12
[5]  
Jones WD, 1960, FUNDAMENTAL PRINCIPL
[6]  
OTANI S, 1965, AI CH EJ, V11, P435
[7]  
RIVEROLA JB, 1964, IND ENG CHEM FUNDAME, V3, P308
[8]   FLOW AND DIFFUSION CHARACTERISTICS OF ALUMINA CATALYST PELLETS [J].
ROBERTSON, JL ;
SMITH, JM .
AICHE JOURNAL, 1963, 9 (03) :342-347
[9]   ANISOTROPIC DIFFUSIVITIES IN PRESSED CATALYST PELLETS [J].
SATTERFIELD, CN ;
SARAF, SK .
INDUSTRIAL & ENGINEERING CHEMISTRY FUNDAMENTALS, 1965, 4 (04) :451-+
[10]  
Sherwood T.K., 1952, ABSORPTION EXTRACTIO