期刊
AICHE JOURNAL
卷 59, 期 1, 页码 96-107出版社
WILEY
DOI: 10.1002/aic.13952
关键词
nucleation; Tunneling; Spreading; Crater Formation; granulation
Tunneling,'' Spreading,'' and Crater Formation'' are the three granule formation mechanisms known to occur when single drops impact static powder beds. To quantify the conditions under which each mechanism will occur, dimensional analysis was performed, and a new regime map was created that plots the powder bed porosity against the modified granular Bond number (Bo*(g)), which is a ratio of the capillary force to the gravitational force acting on a particle. Tunneling occurred for Bo*(g) > 65,000 for all values of bed porosity, whereas Spreading and Crater Formation occurred when Bo*(g) < 65,000 for all values of bed porosity below the minimum fluidization porosity. The granule formation mechanism regime map provides a useful tool to design and predict wet granulation processes by predicting the granule formation mechanism, and thereby general granule shape, from a few key dimensionless groups involving formulation properties and process parameters that can be calculated a priori. (C) 2012 American Institute of Chemical Engineers AIChE J, 59: 96-107, 2013
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据