Kinetic Model for Moderate Hydrocracking of Heavy Oils
详细信息 查看全文
- 作者：Sergio Sá ; nchez ; Miguel A. Rodrí ; guez ; and Jorge Ancheyta
- 刊名：Industrial & Engineering Chemistry Research
- 出版年：2005
- 出版时间：December 7, 2005
- 年：2005
- 卷：44
- 期：25
- 页码：9409 - 9413
- 全文大小：180K
- 年卷期：v.44,no.25(December 7, 2005)
- ISSN：1520-5045
文摘
In this work, a kinetic model for hydrocracking of heavy oils is proposed. The model includesfive lumps: unconverted resid (538 
C+), vacuum gas oil (VGO; 343-538 C), distillates (204-343 C), naphtha (IBP-204 C), and gases. Kinetic parameters were estimated from theexperimental results obtained in a fixed-bed downflow reactor. The proposed lump kinetic modelfitted the data for hydrocracking of Maya heavy crude with a Ni/Mo catalyst at 380-420 Creaction temperature, 0.33-1.5 h-1 liquid hourly space velocity, 5000 scf/bbl, and 70 kg/cm2.Only resid cracked to naphtha at 380 C, but all heavier fractions produced some naphtha athigher temperature. The predicted product composition is in good agreement with experimentalvalues with an average absolute error of less than 5%.
C+), vacuum gas oil (VGO; 343-538 C), distillates (204-343 C), naphtha (IBP-204 C), and gases. Kinetic parameters were estimated from theexperimental results obtained in a fixed-bed downflow reactor. The proposed lump kinetic modelfitted the data for hydrocracking of Maya heavy crude with a Ni/Mo catalyst at 380-420 Creaction temperature, 0.33-1.5 h-1 liquid hourly space velocity, 5000 scf/bbl, and 70 kg/cm2.Only resid cracked to naphtha at 380 C, but all heavier fractions produced some naphtha athigher temperature. The predicted product composition is in good agreement with experimentalvalues with an average absolute error of less than 5%.