Direct Contact Heat Transfer in Melt Crystallization.

• Kim Kwang-Joo

  Chemical Process & Engineering Center, Korea Research Institute of Chemical Technology

• Mersmann Alfons

  Lehrstuhl B für Verfahrenstechnik, Technical University Munich

書誌事項

タイトル別名

• Direct Contact Heat Transfer in Melt Cr

抄録

The heat transfer of melt crystallization with direct contact coolants such as gas, liquid and vaporized liquid was explored. Melt crystallization with direct contact coolants was carried out by crystallizing n-dodecanol from n-decanol - n-dodecanol mixture. The direct cooled crystallizers were capable of being operated either batch-wise or continuously. The superficial velocity of coolant: 3 × 10^–6–2 × 10^–4 m/s for the vaporized liquid, 1 × 10^–5–1 × 10^–4 m/s for the liquid and 5 × 10^–2–2 × 10^–1 m/s for the gas, and the hold-up of coolant: 0.02–0.9 for the liquid and 0.01–0.25 for the gas were varied. The volumetric heat transfer coefficient obtained by direct contact cooling in the melt crystallizer was varied in the range of 0.1 to 100 kW/m³K. It was roughly proportional to the 1.5 to 1.8 power of the linear velocity of coolant. The semiempirical relations for correlating the volumetric heat transfer coefficient in the direct cooled melt crystallization were presented.

収録刊行物

• JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

  JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 31 (4), 527-535, 1998

  公益社団法人 化学工学会

キーワード

• Melt Crystallization
• Heat Transfer
• Direct Contact Cooling
• Heat Transfer Coefficient

詳細情報

• CRID: 1390282679542354432
• NII論文ID: 10002065896
• NII書誌ID: AA00709658
• DOI: 10.1252/jcej.31.527
• COI: 1:CAS:528:DyaK1cXls1KjsLo%3D
• ISSN: 18811299
• ISSN: 00219592
• NDL書誌ID: 4541594
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4541594
• Web Site: http://www.jstage.jst.go.jp/article/jcej/31/4/31_4_527/_pdf
• 本文言語コード: en
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