Crystal mechanism in pipelines while conveying green liquid
Crystal mechanism in pipelines while conveying green liquid
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发表时间:
2005
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通讯作者:
Zhou Hong-bin
中科院分区:
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作者:
Zhou Hong-bin
Chemical analysis, X-ray diffraction and phase doppler particle analyzer are utilized to test the characteristic of green liquid and its salt-out substance. The changing law of crystal velocity in different surface roughness and materials of pipelines is investigated. The experimental results are analyzed by using the theories of crystal dynamics and hydrodynamics. It was found that, the temperature and physical property of green liquid influence the salt crystal separation directly, and the smaller particle diameter distribution strengthens the flocculation function, which becomes an important factor on green liquid dynamic crystal. During the heterogeneous nucleation and induction period of the salt-out crystal, surface roughness plays an important role on its growing period. Namely, the crystal grows slower on wall surface of less roughness than that of more roughness. Materials can influence the crystal velocity due to different material with different surface activation energy.