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Economic criteria in the design of cascades of CSTR’s for the performance of Enzyme -c at a1 yzed reactions

1997Journal article Open access
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dc.contributor.authorMalcata, F. Xavier
dc.date.accessioned2011-10-21T14:54:52Z
dc.date.available2011-10-21T14:54:52Z
dc.date.issued1997
dc.description.abstractThe mass balances on substrate in each unit of a series of CSTRs performing an enzyme-catalyzed reaction described by Michaelis-Menten kinetics (with parameter K,,,)a re written and the necessary and sufficient condition that must be satisfied by the intermediate concentrations in order to obtain a minimum overall capital investment is found on the assumption that the cost of each reactor unit scales up on its capacity according to a fractional factor exponential rule (with parameter n). The asymptotic situations of pseudo-zero order and pseudo-first order behavior are explored. The ratio between consecutive concentrations leading to a minimum overall capital investment decreases as K,,, decreases at a rate that is slower for higher n, and tends to unity as the pseudo-first order situation is approached. If fractional values of n are considered, local minima of the capital investment associated with the overall reactor cascade exist only in certain ranges of substrate conversion; below the lower limits of such ranges, the number of reactor units should actually be decreased. A graphical procedure aimed at obtaining the intermediate optimal concentrations is presented.por
dc.identifier.citationMALCATA, F. Xavier - Economic Criteria in the Design of Cascades of CSTR’s for the Performance of Enzyme -c at a1 yzed Reactions. The Canadian Journal of Chemical Engineering. ISSN 1939-019X. Vol. 75, n.º 5 (1997), p. 984-989por
dc.identifier.doi10.1002/cjce.5450750520
dc.identifier.urihttp://hdl.handle.net/10400.14/6701
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherChemical Institute of Canadapor
dc.subjectCapital investmentpor
dc.subjectExponential factor rulepor
dc.subjectMichaelis-Menten reactionspor
dc.subjectOptimizationpor
dc.titleEconomic criteria in the design of cascades of CSTR’s for the performance of Enzyme -c at a1 yzed reactionspor
dc.typejournal article
dspace.entity.typePublication
person.familyNameMalcata
person.givenNameFrancisco
person.identifier.ciencia-id1B13-38A5-35F5
person.identifier.orcid0000-0003-3073-1659
person.identifier.scopus-author-id7102542478
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationa06c00da-0e2f-4434-8ede-4d7b22c0dfe9
relation.isAuthorOfPublication.latestForDiscoverya06c00da-0e2f-4434-8ede-4d7b22c0dfe9

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