MODELING OF INTRAPARTICLE DIFFUSION AFFECTED BY THE TIME-ON-STREAM CATALYST DECAY

被引：4
|
作者：
GRZESIK, M
SKRZYPEK, J
WOJCIECHOWSKI, BW
机构：
[1] POLISH ACAD SCI,INST CHEM ENGN,GLIWICE,POLAND
[2] QUEENS UNIV,DEPT CHEM ENGN,KINGSTON K7L 3N6,ONTARIO,CANADA
来源：
CHEMICAL ENGINEERING SCIENCE | 1992年 / 47卷 / 9-11期
关键词：
D O I：
10.1016/0009-2509(92)87133-B
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The problem of modelling of the intraparticle diffusion affected by the time-on-stream catalyst decay is considered. Independently of the value of n, a cross -effect is attained consisting in a higher average conversion in the catalyst bed of higher internal diffusion resistance at a sufficiently long deactivation time. If PHI(d)>PHI(dcr) = {2(upsilon+1)}1/2, then a non-uniform profile of the fraction of unpoisoned active sites appears in a catalyst pellet, although only concentration-independent deactivation is examined.
引用
收藏
页码：2805 / 2810
页数：6
相关论文
共 50 条
  • [21] Time-on-Stream Stability of New Catalysts for Low-Temperature Steam Reforming of Biogas
    Turchetti, Luca
    Monteleone, Giulia
    Giaconia, Alberto
    Sau, Salvatore
    Palma, Vincenzo
    Castaldo, Filomena
    Lemonidou, Angeliki A.
    Angeli, Sofia D.
    16TH INTERNATIONAL CONFERENCE ON PROCESS INTEGRATION, MODELLING AND OPTIMISATION FOR ENERGY SAVING AND POLLUTION REDUCTION (PRES'13), 2013, 35 : 685 - 690
  • [22] THE EFFECT OF INTRAPARTICLE DIFFUSION ON CATALYTIC PROCESSES IN A FLUIDIZED-BED REACTOR WITH DECAYING CATALYST - INTRAPARTICLE DIFFUSION INFLUENCES ONLY CATALYTIC REACTIONS
    GRZESIK, M
    SKRZYPEK, J
    WOJCIECHOWSKI, BW
    INZYNIERIA CHEMICZNA I PROCESOWA, 1992, 13 (01): : 131 - 153
  • [23] EXPERIMENTAL-TECHNIQUE FOR DETERMINING SIGNIFICANCE OF INTRAPARTICLE DIFFUSION IN AN AGING CATALYST
    BEST, DA
    WOJCIECHOWSKI, BW
    CANADIAN JOURNAL OF CHEMICAL ENGINEERING, 1976, 54 (03): : 197 - 202
  • [24] APPLICATION OF TIME ON STREAM THEORY TO THE CHEMICAL REACTORS MODELING .2. CATALYST DECAY BEHAVIOR IN FLUIDIZED-BED REACTORS
    GRZESIK, M
    SKRZYPEK, J
    WOJCIECHOWSKI, BW
    INZYNIERIA CHEMICZNA I PROCESOWA, 1988, 9 (03): : 441 - 459
  • [25] INTRAPARTICLE DIFFUSION AND REACTION-KINETICS AS FACTORS IN CATALYST PARTICLE DESIGN
    SIE, ST
    CHEMICAL ENGINEERING JOURNAL AND THE BIOCHEMICAL ENGINEERING JOURNAL, 1993, 53 (01): : 1 - 11
  • [26] Hydrogen Partitioning as a Function of Time-on-Stream for an Unpromoted Iron-Based Fischer-Tropsch Synthesis Catalyst Applied to CO Hydrogenation
    Davidson, Alisha
    B Webb, Paul
    Parker, Stewart F.
    Lennon, David
    INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2020, 59 (01) : 52 - 60
  • [27] INTRAPARTICLE DIFFUSION EFFECTS IN FISCHER-TROPSCH SYNTHESIS Ⅰ. MODELING OF DIFFUSION AND REACTION
    SHEN Wen-Jie
    ZHOU Jing-Lai
    ZHANG Bi-Jiang (Institute of Coal Chemistry
    Journal of Natural Gas Chemistry , 1996, (01) : 59 - 68
  • [28] SIMULTANEOUS INTRAPARTICLE FORCED-CONVECTION, DIFFUSION AND REACTION IN A POROUS CATALYST
    NIR, A
    PISMEN, LM
    CHEMICAL ENGINEERING SCIENCE, 1977, 32 (01) : 35 - 41
  • [29] THE CATALYST DECAY BEHAVIOR IN FLUIDIZED-BED REACTORS USING THE TIME ON STREAM THEORY
    GRZESIK, M
    SKRZYPEK, J
    WOJCIECHOWSKI, BW
    CHEMICAL ENGINEERING SCIENCE, 1990, 45 (01) : 267 - 273
  • [30] EFFECT OF INTRAPARTICLE DIFFUSION ON THE COURSE OF CATALYTIC REACTIONS IN A FIXED-BED REACTOR WITH DECAYING CATALYST - INTRAPARTICLE DIFFUSION INFLUENCES ONLY CATALYTIC REACTIONS
    GRZESIK, M
    SKRZYPEK, J
    WOJCIECHOWSKI, BW
    WORSZTYNOWICZ, A
    INZYNIERIA CHEMICZNA I PROCESOWA, 1991, 12 (03): : 313 - 333
12345