STEADY-STATE MULTIPLICITY FOR AUTOCATALYTIC REACTIONS IN A NONIDEAL MIXING OF CSTR WITH 2 UNPREMIXED FEEDS

Authors
Citation
Ys. Chien et Ct. Liou, STEADY-STATE MULTIPLICITY FOR AUTOCATALYTIC REACTIONS IN A NONIDEAL MIXING OF CSTR WITH 2 UNPREMIXED FEEDS, Chemical Engineering Science, 50(22), 1995, pp. 3645-3650
Citations number
18
Categorie Soggetti
Engineering, Chemical
ISSN journal
00092509
Volume
50
Issue
22
Year of publication
1995
Pages
3645 - 3650
Database
ISI
SICI code
0009-2509(1995)50:22<3645:SMFARI>2.0.ZU;2-M
Abstract
The necessary and sufficient conditions for multiplicity are derived f or isothennal autocatalytic reactions in a nonideal mixing of CSTR wit h two unpremixed feeds. Cholette's model is utilized in this paper. Th e ratio of the fraction of the feed for A to B entering the zone of pe rfect mixing (n(b)/n(a))(,) is indicated to determine significantly th e multiplicity and uniqueness region. When the (n(b)/n(a)) is larger ( smaller) than 1, the multiplicity region decreases (increases), and th e conversion in active space increases (decreases). When (n(b)/n(a)) i s equal to 1, the multiplicity region and the conversion in active spa ce are the same as those in the ideal mixing. If operating in a unique region in the ideal mixing, the system may show multiplicity when (n( b)/n(a)) < 1. On the other hand, if operating in a multiplicity region in the ideal mixing the system may show uniqueness when (n(b)/n(a)) > 1.