A numerical investigation of scale-up effects on coke yields of a thermal cracking Riser reactor

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A validated computational fluid dynamics (CFD) computer code, ICRKFLO, was used to investigate the scale-up effects on the coke yields of thermal cracking riser factors. Comparisons were made for calculated coke yields of pilot- and commercial-scales riser units. Computational results show that the riser aspect ratio, reaction temperature, particle residence time, and particle/oil ratio have major impacts on the coke yield. A computational experiment was conducted to determine optimal operating conditions for a conceptual design of a commercial-scale riser unit. This experiment showed that the performance loss in scale-up from pilot to commercial scale may be almost completely recovered through ... continued below

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10 p.

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Chang, S.L.; Lottes, S.A. & Petrick, M. May 1, 1995.

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A validated computational fluid dynamics (CFD) computer code, ICRKFLO, was used to investigate the scale-up effects on the coke yields of thermal cracking riser factors. Comparisons were made for calculated coke yields of pilot- and commercial-scales riser units. Computational results show that the riser aspect ratio, reaction temperature, particle residence time, and particle/oil ratio have major impacts on the coke yield. A computational experiment was conducted to determine optimal operating conditions for a conceptual design of a commercial-scale riser unit. This experiment showed that the performance loss in scale-up from pilot to commercial scale may be almost completely recovered through optimizing the operating conditions after scale-up using the CFD simulations as a guide.

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10 p.

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OSTI as DE97053258

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  • 2. international symposium on scale modeling, Lexington, KY (United States), 23-27 Jun 1997

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  • Other: DE97053258
  • Report No.: ANL/ES/CP--93411
  • Report No.: CONF-9706184--
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 542058
  • Archival Resource Key: ark:/67531/metadc694230

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  • May 1, 1995

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • Dec. 15, 2015, 11:57 a.m.

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Chang, S.L.; Lottes, S.A. & Petrick, M. A numerical investigation of scale-up effects on coke yields of a thermal cracking Riser reactor, article, May 1, 1995; Illinois. (digital.library.unt.edu/ark:/67531/metadc694230/: accessed September 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.