Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Spouted bed drying of Bauhinia forficata link extract: the effects of feed atomizer position and operating conditions on equipment performance and product properties

Full text
Author(s):
C. R. F. Souza [1] ; W. P. Oliveira [2]
Total Authors: 2
Affiliation:
[1] Universidade de São Paulo. Faculdade de Ciências Farmacêuticas de Ribeirão Preto - Brasil
[2] Universidade de São Paulo. Faculdade de Ciências Farmacêuticas de Ribeirão Preto - Brasil
Total Affiliations: 2
Document type: Journal article
Source: Brazilian Journal of Chemical Engineering; v. 22, n. 2, p. 239-247, 2005-06-00.
Field of knowledge: Engineering - Chemical Engineering
Abstract

In this paper the effects of feed atomizer position and operating conditions on equipment performance (accumulation rate, product recovery, elutriation and thermal efficiency) and product properties (moisture content, size distribution, flavonoid degradation and flow properties) during spouted bed drying of Bauhinia forficata Link extract are evaluated. The parameters studied were the position of the atomizer system (top spray or bottom spray), the inlet temperature of the spouting gas (80 and 150oC) and the feed mass flow rate of concentrated extract relative to the evaporation capacity of the dryer, Ws/Wmax (15 to 100%). Higher accumulation rate values were obtained with the atomizer placed at the bottom of the bed. In this configuration, the accumulation rate increases with the increase in the Ws/Wmax ratio. The best drying performance was obtained for the top spray configuration. (AU)