02243nas a2200217   4500008004100000022001400041245010900055210006900164260006900233300001200302490000800314520138400322653001801706653003101724653003301755653002501788653002801813653003001841100002501871856012901896       2008                        eng d  a1385-894700aGeneral model for analyzing data on the rate of reactive dissolution of poly-disperse particulate solids0 aGeneral model for analyzing data on the rate of reactive dissolu  aPO BOX 564, 1001 LAUSANNE, SWITZERLANDbELSEVIER SCIENCE SAcAPR  a347-3600 v1373 a<p>A model has been presented which successfully simulates the experimentally observed integral batch reactive dissolution rate data while accounting for the poly-dispersity of the solid particulate charge. This allowed avoiding arbitrary assumptions about the particulate inventory and size independence of the mass transfer coefficient. There is also no need for a priori identification of the controlling regime, which can change from kinetic to mass transfer during the process, apart from the possibility of the shift with the specified process and operating conditions. The model was applied with equal ease to a simple isothermal reaction, an exothermic reaction with runaway potential and to a phase-transfer catalysis reaction with a complex mechanism. The model was shown to predict the time required for a specified extent of conversion of the particulate reactant or the rate of consumption of a key liquid reactant under a variety of process and operating conditions, like temperature, liquid reactant and the catalyst concentration, particle size, poly-dispersity of the charge and agitation speed. Such information is useful in reactor design and scale-up. Where dissolution is accompanied with a runaway reaction, the model can predict quantities of interest in hazard assessment and should aid safe reactor design. (c) 2007 Elsevier B.V. All rights reserved.</p>10akinetic model10aparticle size distribution10apoly-disperse solid reactant10areactive dissolution10areactive thermal hazard10asolid-liquid PTC reaction1 aBhattacharya, Arijit  uhttps://library.ncl.res.in/content/general-model-analyzing-data-rate-reactive-dissolution-poly-disperse-particulate-solids-0