Phase Separation Characteristics of Ammonium Alum Hydrates with Poly Vinyl Alcohol

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Makoto Fujii¹  Hiroshi Suzuki¹  Yoshiyuki Komoda¹  Takuya Tano¹  Ruri Hidema²  Takafumi Toyoda¹ 

[1] Department of Chemical Science and Engineering, Kobe University;Organization of Advanced Science and Technology, Kobe University

关键词: Hydrate Slurry;    Latent Heat Transportation;    Surfactants;    Sedimentation;    Particle Growth;   

DOI  :  10.1252/jcej.13we085

来源: Maruzen Company Ltd

【 摘 要 】

References(20)Cited-By(2)Aluminum ammonium sulfate dodecahydrate (ammonium alum hydrate) slurries are promising latent heat media for high temperature applications. However, a major problem associated with materials developed specifically for high temperature use is sedimentation in the pipes of the device. Thus, the ability of poly vinyl alcohol (PVA) to prevent sedimentation and particle growth of ammonium alum hydrates has been investigated in this study. In order to increase the fluidity of the slurry, a cationic surfactant, behenyl trimethyl ammonium chloride, was used as a drag-reducing agent, and the interaction between the cationic surfactant and PVA was evaluated. The rheological properties of the slurries and solutions were investigated, and they indicated that the drag-reducing cationic surfactant was not disturbed by the PVA.

【 授权许可】

Unknown