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Design of a Flexible Pilot Plant Reactor for the Steam Cracking Process
Author(s) -
Karimzadeh R.,
Ghashghaee M.
Publication year - 2008
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.200700326
Subject(s) - naphtha , pilot plant , cracking , residence time (fluid dynamics) , reactor pressure vessel , electromagnetic coil , sensitivity (control systems) , flow (mathematics) , plug flow reactor model , nuclear engineering , process engineering , continuous stirred tank reactor , engineering , materials science , chemistry , waste management , mechanics , chemical engineering , composite material , biochemistry , physics , geotechnical engineering , electrical engineering , electronic engineering , catalysis
A design technique for a pilot plant reactor of single diameter is presented to scale up or down steam cracking coils of different configurations like mono‐tubular, classical, and reversed splits. Using dimensional analysis, two criteria are selected in establishing partial similarity between different scales, the mean residence time, and the axial pressure profile in the reactor, in addition to preserving the flow pattern within the turbulent region. The sensitivity and accuracy of the proposed method is compared to another conceivable alternative that focuses on the lateral gradients. The pilot reactor coil is adapted for any large‐scale reactor by the adjustment of feed flow rate and the effective length exposed to the firebox heat flux. Simulation results for naphtha cracking in a commercial split coil and also the equivalent pilot plant reactors are used for verification and validation of this method.