The Separation Efficiency Improvementof the Heavy Water Enrichment in Thermal-Diffusion Columnswith a Sidestream Withdrawn at the Feed Position.

• Main Authors: Sheng-Hung Chen, 陳勝鴻
• Other Authors: Chii-Dong Ho
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/61229373337766787446

碩士 === 淡江大學 === 化學工程學系 === 91 === Title of Thesis: The Separation Efficiency Improvement Total papers: 240 of the Heavy Water Enrichment in Thermal-Diffusion Columns with a Sidestream Withdrawn at the Feed Position. Key word: Sidestream, Flow-Rate Fraction Variations, Separation, Thermal Diffusion, Name of Institute: Graduate Institute of Chemical Engineering, Tamkang University Graduate date: June, 2003 Degree conferred: Master Name of student: Sheng-Hung Chen Advisor: Dr. Chii-Dong Ho 陳勝鴻 何啟東 Abstract: Development of the separation equation and operation of a Clusius-Dickel column with a sidestream withdraw at the feed position for the heavy water enrichment has been accomplished. Performance of the Clusius-Dickel column with sidestream operation with the best feed position, best inclined angle, optimum plate-spacing and optimum aspect ratio and its corresponding maximum separation were determined with the flow-rate fractions of the sidestream and top outlet as parameters. The effect of the sidestream in a classical Clusius-Dickel column on separation efficiencies for system, has been investigated theoretically and experimentally. The theoretical predictions were in good agreement with the experimental results. The results indicated that the maximum separation efficiency increase with the sidestream flow-rate fraction but decrease with feed rate. The analytical predictions are represented graphically and compared with that in a classical Clusius-Dickel column. Considerable improvement in the device performance is obtained by employing a Clusius-Dickel column under sidestream operation and flow-rate fraction variations, instead of using a classical Clusius-Dickel device.