MICROMIXING EFFECTS ON BARIUM SULFATE PRECIPITATION IN AN MSMPR REACTOR
作者:
WOO-SIK KIM,
JOHNM. TARBELL,
期刊:
Chemical Engineering Communications
(Taylor Available online 1996)
卷期:
Volume 146,
issue 1
页码: 33-56
ISSN:0098-6445
年代: 1996
DOI:10.1080/00986449608936480
出版商: Taylor & Francis Group
关键词: Micromixing;Precipitation;Turbulence;Nucleation
数据来源: Taylor
摘要:
The Effects of non-ideal and nonhomogeneous mixing on barium sulfate precipitation in an MSMPR reactor were observed experimentally and analyzed theoretically. To generate nonhomogeneous mixing the unmixed feed streams were fed to the reactor at the same location (joint feeding mode) or a plug flow reactor was connected to the MSMPR reactor. These nonhomogeneous mixing conditions resulted in significant reductions in particle size and increases in particle numbers. These non ideal mixing effects were dependent on the impeller speed, feed stream velocity and residence time in the connected plug flow reactor and are believed to result from elevated supersaturation levels in a premixing zone which are controlled by turbulent micromixing
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