Heat Transfer Study on Hydrocracking of Paraffin Wax over Microfiber-Wrapped Catalyst

The microfibrous entrapped Pt/SAB catalyst (MFEC) was prepared by wet lay-up papermaking with a sintering process. The MFEC with Cu-fibers and Ni-fibers has excellent heat transfer properties compare to traditional catalysts via thermal measurements. Thereof, CuMF-Pt/SAB catalyst has lower catalytic...

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Published inIndustrial & engineering chemistry research Vol. 53; no. 14; pp. 5683 - 5691
Main Authors Jiang, Jian, Yang, Chao, Sun, Jibing, Dong, Zhaohui, Li, Tao, Cao, Fahai
Format Journal Article
LanguageEnglish
Published American Chemical Society 09.04.2014
Subjects
Catalysis
Catalysts
Copper
Heat transfer
Hydrocracking
Nickel
Pressure drop
Selectivity
Sintering
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Summary:The microfibrous entrapped Pt/SAB catalyst (MFEC) was prepared by wet lay-up papermaking with a sintering process. The MFEC with Cu-fibers and Ni-fibers has excellent heat transfer properties compare to traditional catalysts via thermal measurements. Thereof, CuMF-Pt/SAB catalyst has lower catalytic properties due to the fact that Cu contaminates the catalyst during the sintering process. Although NiMF-Pt/SAB catalyst has good catalytic property, it also has higher selectivity of liquid products and lower selectivity of gas products due to the fact that MFEC can avoid temperature runaways during the hydrocracking reactions. The simulating results confirmed that MFEC has good heat transfer and avoid temperature runaways. The pressure drop of MFEC is also lower than conventional catalyst. Therefore, the Ni MFEC structures are taken as a suitable catalyst structure to enhance the heat transfer for the exothermic hydrocracking reaction, especially for mild temperatures in the reaction.
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ISSN:0888-5885
1520-5045
DOI:10.1021/ie402551q