Mixing by impeller agitation in continuous flow systems containing polysaccharide solutions

Autor:	D. W. Hubbard, D. N. Johnson
Rok vydání:	1974
Předmět:	Mass transport Aqueous solution Chromatography Chemistry Continuous flow Mixing (process engineering) Bioengineering Mechanics Applied Microbiology and Biotechnology Dilution Impeller TRACER Perfect mixing Biotechnology
Zdroj:	Biotechnology and Bioengineering. 16:1283-1297
ISSN:	1097-0290 0006-3592
DOI:	10.1002/bit.260160911
Popis:	System response data for step changes in input tracer concentration have been obtained for two different impeller agitated continuous flow mixing systems containing aqueous polysaccharide solutions. The vessel volumes were 1.6 and 10.9 liters. Polysaccharide concentration, dilution rate, and impeller speed were varied according to a plan devised using dimensional analysis and assuming that bulk motion is the predominant mass transport mechanism in the system. The data show that this is not true and that serious errors may occur if scale-up calculations are based on assuming that bulk motion predominates. Under the operating conditions used, perfect mixing was not observed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8516e24fb7972739c0bea6aa88a04d18 https://doi.org/10.1002/bit.260160911 Zobrazit plný text záznamu Plný text