Steady-state multiplicity for autocatalytic reactions in a nonideal mixing of CSTR with two unpremixed feeds

✍ Scribed by Yu-Shu Chien; Ching-Tien Liou

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 378 KB
• Volume: 50
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(95)00194-a

✦ Synopsis

The necessary and sufficient conditions for multiplicity are derived for isothermal autocatalytic reactions in a nonideal mixing of CSTR with two unpremixed feeds. Cholette's model is utilized in this paper. The ratio of the fraction of the feed for A to B entering the zone of perfect mixing, (nJna) , is indicated to determine significantly the multiplicity and uniqueness region. When the (nJno) is larger (smaller) than I, the multiplicity region decreases (increases), and the conversion in active space increases (decreases). When (nb/n,) is equal to 1, the multiplicity region and the conversion in active space 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 (nb/n~) < I. On the other hand, if operating in a multiplicity region in the ideal mixing, the system may show uniqueness when (nJna) > 1.