Hydrodynamic study of zeolite-based composite cracking catalyst in a transport riser reactor

被引:6
作者
Ong, Yee Kang [1 ]
Bhatia, Subhash [1 ]
机构
[1] Univ Sains Malaysia, Sch Chem Engn, Nibong Tebal 14300, Pulau Pinang, Malaysia
关键词
Composite cracking catalyst; Transport riser reactor; Hydrodynamic studies; Pressure drop; Superficial gas velocity; PALM OIL; CONVERSION; MIXTURE;
D O I
10.1016/j.cherd.2008.12.010
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
A composite catalyst containing H-Y zeolite and kaolin suitable for catalytic cracking of palm oil for the production of biofuels was synthesized by sol-gel-sieve method. In this study, we report the results of the hydrodynamic studies using a composite catalyst in a transport riser reactor. The hydrodynamic study confirms that the pressure difference across the transport riser reactor varies with the superficial gas velocity and it becomes significant at the bend section of the reactor. The pressure buildup occurs when the superficial fluid velocity reaches bubbling fluidization velocity. A model incorporating different dimensionless groups correlated with the pressure difference in transport riser reactor at different operating conditions. The proposed model predicted the pressure drop within an average error of +/- 20% in a transport riser reactor. (C) 2009 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:771 / 779
页数:9
相关论文
共 20 条
  • [11] Catalytic conversion of palm oil-based fatty acid mixture to liquid fuel
    Ooi, YS
    Zakaria, R
    Mohamed, AR
    Bhatia, S
    [J]. BIOMASS & BIOENERGY, 2004, 27 (05) : 477 - 484
  • [12] Multi-stage fluidized bed column: Hydrodynamic study
    Singh, Abhinandan
    Verma, Rupesh
    Kishore, Kaushal
    Verma, Nishith
    [J]. CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION, 2008, 47 (05) : 957 - 970
  • [13] Catalytic cracking of palm oil for the production of biofuels: Optimization studies
    Tamunaidu, Pramila
    Bhatia, Subhash
    [J]. BIORESOURCE TECHNOLOGY, 2007, 98 (18) : 3593 - 3601
  • [14] FCC catalysts with different zeolite crystallite sizes: acidity, structural properties and reactivity
    Tonetto, G
    Atias, J
    de Lasa, H
    [J]. APPLIED CATALYSIS A-GENERAL, 2004, 270 (1-2) : 9 - 25
  • [15] Liquid hydrocarbon fuels from palm oil by catalytic cracking over aluminosilicate mesoporous catalysts with various Si/Al ratios
    Twaiq, FA
    Mohamed, AR
    Bhatia, S
    [J]. MICROPOROUS AND MESOPOROUS MATERIALS, 2003, 64 (1-3) : 95 - 107
  • [16] Catalytic conversion of palm oil over mesoporous aluminosilicate MCM-41 for the production of liquid hydrocarbon fuels
    Twaiq, FA
    Zabidi, NAM
    Mohamed, AR
    Bhatia, S
    [J]. FUEL PROCESSING TECHNOLOGY, 2003, 84 (1-3) : 105 - 120
  • [17] Performance of composite catalysts in palm oil cracking for the production of liquid fuels and chemicals
    Twaiq, FAA
    Mohamad, AR
    Bhatia, S
    [J]. FUEL PROCESSING TECHNOLOGY, 2004, 85 (11) : 1283 - 1300
  • [18] Dimensionless groups for practicable similarity of circulating fluidised beds
    van der Meer, EH
    Thorpe, RB
    Davidson, JF
    [J]. CHEMICAL ENGINEERING SCIENCE, 1999, 54 (22) : 5369 - 5376
  • [19] WACHTER WA, 2005, Patent No. 20050272593
  • [20] Hydrodynamic dependence on riser diameter for different particles in circulating fluidized beds
    Xu, GW
    Nomura, K
    Nakagawa, N
    Kato, K
    [J]. POWDER TECHNOLOGY, 2000, 113 (1-2) : 80 - 87