Effects of mass transfer resistance and coking on yield during fluid catalytic cracking of heavy hydrocarbon fractions
作者: Omotola F.Olanrewaju
刊名: Journal of Chemical Engineering and Materials Science, 2015, Vol.6 (1), pp.1-8
来源数据库: Academy Journals
DOI: DOI 10.5897/JCEMS2014.0199
关键词: Fluid catalytic cracking (FCC)Transient modelMass transfer resistanceCatalyst deactivationRiser models.
原始语种摘要: A transient model for an industrial fluid catalytic cracking (FCC) riser is here presented. The FCC riser models of previous researchers were mostly based on the assumption of negligible mass transfer resistance. This assumption reduced the accuracy of the models. In this work, the effects of mass transfer resistance and coking on the yield of FCC reactions were modeled and simulated. A five-lump reaction scheme was used to model the cracking reactions. Catalyst deactivation was modeled based on the exponential decay function. The mass transfer coefficient and the catalyst effectiveness factor were estimated from empirical correlations obtained from literature. The model parameters that were used in this investigation were sourced from the field as well as from literature. The reaction...
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关键词翻译
关键词翻译
  • catalytic 催化的
  • cracking 裂开
  • deactivation 减活
  • transfer 转换
  • catalyst 催化剂
  • yield 成品率
  • resistance 抵抗
  • FCC Federal Communications Committee
  • reaction 反酌
  • literature 文献