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Liquefaction of coal by SRC‐II process: Part IV: Steady‐state thermal behavior of the reactor
Author(s) -
Singh Chandra P. P.,
Carr Norman L.
Publication year - 1982
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450600616
Subject(s) - steady state (chemistry) , liquefaction , nuclear engineering , dispersion (optics) , thermal , research reactor , materials science , continuous stirred tank reactor , chemical reactor , thermodynamics , chemistry , engineering , physics , nuclear physics , neutron , optics
An axial dispersion thermal model of an SRC‐II reactor is developed. The model is validated by simulation of steady‐state temperature profiles in the Fort Lewis (Tacoma, Washington) pilot‐plant SRC‐II reactor. The simulation shows that normal operations of the SRC‐II reactors are thermally unstable. Changes in the process conditions can be utilized to achieve thermal stability for the reactor at normal SRC‐II operating temperatures, i.e., reactor outlet temperature of less than 465°C and average reactor temperature of about 455°C. However, thermal stability of the reactor would always result in reduction in the rate of reaction. Regions of unstable steady‐state reactor temperature over large ranges of ash concentrations in the reactor and reactor feed temperatures are also illustrated.