Abstract
In order to involve the amount of liquid as much as possible, the preparation of large agglomerates of high voidage was experimentally investigated with charcoal powders using a polyvinyl alcohol binder by means of a high-shear mixer type of agitation granulator. It was found that a moderately short granulation time is preferable to prepare large and high voidage agglomerates. Although the binder is necessary to produce agglomerates of certain strength, a lower concentration yields a wider oversize distribution or higher fraction of large agglomerates. There exists a suitable intermediate speed of agitator to prepare large and high voidage agglomerates. Further, although the weight fraction of absorbed liquid decreases slightly with increasing agglomerate diameter and with granulation time, the release rate of liquid from agglomerates is mainly related to agglomerate sizes - the smaller the agglomerate, the faster the release rate of liquid.
| Original language | English |
|---|---|
| Pages (from-to) | 535-547 |
| Number of pages | 13 |
| Journal | Advanced Powder Technology |
| Volume | 16 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2005 |
| Externally published | Yes |
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Keywords
- Granulation
- Large agglomerate
- Release rate
- Voidage
ASJC Scopus subject areas
- Chemical Engineering(all)
Cite this
Preparation of large agglomerates of high voidage from charcoal particles for liquid absorption and release. / Zhou, Tao; Golman, Boris; Shinohara, Kunio.
In: Advanced Powder Technology, Vol. 16, No. 5, 2005, p. 535-547.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Preparation of large agglomerates of high voidage from charcoal particles for liquid absorption and release
AU - Zhou, Tao
AU - Golman, Boris
AU - Shinohara, Kunio
PY - 2005
Y1 - 2005
N2 - In order to involve the amount of liquid as much as possible, the preparation of large agglomerates of high voidage was experimentally investigated with charcoal powders using a polyvinyl alcohol binder by means of a high-shear mixer type of agitation granulator. It was found that a moderately short granulation time is preferable to prepare large and high voidage agglomerates. Although the binder is necessary to produce agglomerates of certain strength, a lower concentration yields a wider oversize distribution or higher fraction of large agglomerates. There exists a suitable intermediate speed of agitator to prepare large and high voidage agglomerates. Further, although the weight fraction of absorbed liquid decreases slightly with increasing agglomerate diameter and with granulation time, the release rate of liquid from agglomerates is mainly related to agglomerate sizes - the smaller the agglomerate, the faster the release rate of liquid.
AB - In order to involve the amount of liquid as much as possible, the preparation of large agglomerates of high voidage was experimentally investigated with charcoal powders using a polyvinyl alcohol binder by means of a high-shear mixer type of agitation granulator. It was found that a moderately short granulation time is preferable to prepare large and high voidage agglomerates. Although the binder is necessary to produce agglomerates of certain strength, a lower concentration yields a wider oversize distribution or higher fraction of large agglomerates. There exists a suitable intermediate speed of agitator to prepare large and high voidage agglomerates. Further, although the weight fraction of absorbed liquid decreases slightly with increasing agglomerate diameter and with granulation time, the release rate of liquid from agglomerates is mainly related to agglomerate sizes - the smaller the agglomerate, the faster the release rate of liquid.
KW - Granulation
KW - Large agglomerate
KW - Release rate
KW - Voidage
UR - http://www.scopus.com/inward/record.url?scp=27844462073&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=27844462073&partnerID=8YFLogxK
U2 - 10.1163/1568552054969933
DO - 10.1163/1568552054969933
M3 - Article
VL - 16
SP - 535
EP - 547
JO - Advanced Powder Technology
JF - Advanced Powder Technology
SN - 0921-8831
IS - 5
ER -