1999 Fiscal Year Final Research Report Summary
Development of advanced crystallizar with on-line control of crystal diameter distribution
| Project/Area Number |
10555264
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
化学工学一般
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| Research Institution | Yokohama National University |
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Principal Investigator |
KAMIWANO Mitsuo Yokohama Nat.Unv., Faculty of Engineering, Professor, 工学部, 教授 (70017896)
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| Co-Investigator(Kenkyū-buntansha) |
SHIROTA Daigo Idemitsu Petrochemical Co.Ltd., Research Center, Group Leader, 生産技術センター, 研究グループリーダー
NISHI Kazuhiko Yokohama Nat.Unv., Faculty of Engineering, Assistant, 工学部, 助手 (20262412)
KAMINOYAMA Meguru Yokohama Nat.Unv., Faculty of Engineering, Professor, 工学部, 教授 (50233945)
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| Project Period (FY) |
1998 – 1999
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| Keywords | stirred-type crystallizer / DTB-type crystallizer / crystal size distribution / imaging processing system / 3-D crystal image / On-line measurment / On-line control |
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| Research Abstract |
In this research, we propose an on-line measuring method for determining the crystal size distribution in a crystallizer. This method is to suck liquid including crystals out of the stirred-type crystallizer and to instantly observe a silhouette of the crystal in a multiphasic way using the imaging processing system. A variety of information on the crystals, such as the shape, diameter, agglomeration and/or breakage, can be obtained from the reconstructed 3-D images. In this paper, the crystal diameter distributions which are based on 3-D crystal images were measured in several crystallization conditions and two types of crystallizers. As a result, it is found that quantitative information on crystals in a crystallizer can be obtained using this method.
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