Dispersion Effects on Membrane Reactor Performance

Koukou, MK; Papayannakos, N; Markatos, NC

dc.contributor.author	Koukou, MK	en
dc.contributor.author	Papayannakos, N	en
dc.contributor.author	Markatos, NC	en
dc.date.accessioned	2014-03-01T01:11:54Z
dc.date.available	2014-03-01T01:11:54Z
dc.date.issued	1996	en
dc.identifier.issn	0001-1541	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11848
dc.subject	Membrane Reactor	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	Alumina	en
dc.subject.other	Boundary conditions	en
dc.subject.other	Dehydrogenation	en
dc.subject.other	Finite volume method	en
dc.subject.other	Glass	en
dc.subject.other	Mathematical models	en
dc.subject.other	Paraffins	en
dc.subject.other	Partial differential equations	en
dc.subject.other	Performance	en
dc.subject.other	Permselective membranes	en
dc.subject.other	Porous materials	en
dc.subject.other	Reaction kinetics	en
dc.subject.other	Complex dispersion models	en
dc.subject.other	Cyclohexane	en
dc.subject.other	Dispersion effects	en
dc.subject.other	Mass conservation	en
dc.subject.other	Membrane reactor	en
dc.subject.other	Momentum equations	en
dc.subject.other	Chemical reactors	en
dc.subject.other	dispersion	en
dc.subject.other	membranes	en
dc.title	Dispersion Effects on Membrane Reactor Performance	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/aic.690420921	en
heal.identifier.secondary	http://dx.doi.org/10.1002/aic.690420921	en
heal.language	English	en
heal.publicationDate	1996	en
heal.abstract	A mathematical model has been developed that predicts the effects of design parameters, operating variables and physical properties on the performance of a membrane reactor with a permselective wall. The model consists of the full set of partial differential equations that describe the conservation of mass, momentum and chemical species, coupled with chemical kinetics and appropriate boundary conditions for the physical problem. The solution of this system is obtained by a finite-volume technique. The model was applied to study the dehydrogenation of cyclohexane. Two membrane types in tubular form were studied: a selective porous glass with low gas permeabilities and a porous alumina with very high gas permeabilities. It is concluded that gas separation and reactor performance are strongly influenced by dispersion effects only in the latter membrane reactor, while in both cases radial concentration profiles do not correspond to those obtained with plug flow. Therefore, simulations of this type of problem should be based on complex dispersion models rather than the existing ideal plug-flow ones.	en
heal.publisher	AMER INST CHEMICAL ENGINEERS	en
heal.journalName	AIChE Journal	en
dc.identifier.doi	10.1002/aic.690420921	en
dc.identifier.isi	ISI:A1996VF87700022	en
dc.identifier.volume	42	en
dc.identifier.issue	9	en
dc.identifier.spage	2607	en
dc.identifier.epage	2615	en