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11/24/13 Sumiju Plant Engineering Co., Ltd. - Equipment for Distillation and Extraction
www.spe.shi.co.jp/en/distill1.html
Comparative Example of Initial/Running Costs Between Conventional 2-Column System
and Divided Wall Column regarding the Actual High-Purity Ethyl Acetate Producing
Installation*
* • Amount o f feed: 2,200kg/h • Product purity: 99.99wt% • Column diameter: 1,100mm •
Number of theoretical stages: 50
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11/24/13 Sumiju Plant Engineering Co., Ltd. - Equipment for Distillation and Extraction
www.spe.shi.co.jp/en/distill1.html
Divided Wall Column Delivery Record
Number of installations 21
Column diameter 150A (min.) - ID 3,600mm (max.)
Column height 5,300mm (min.) - 40,000mm (max.)
Number of theoretical stages 20 (min.) - 65 (max.)
Operating pressure normal pressure - vacuum (0.4kPa)
Operating temperature 80ºC-250ºC *temperature at the bot tom of the column
Process petro chemist ry, oleochemistry, fatty series
Pilot Test
Actual liquid tes ts using the pilot test equipment can be conducted to confirm applicability of
the Divided Wall Column and reliability of scaling up to actual industrial installations.
Overview of Test Installation Specifications
Method operational method of continuous distillation
Distillation tower
specifications
150A x SFLOW® "700G" (specific surface area: 700m2/m3)
Number of theoretical stages (9 theoretical stages ) x 4BED (equivalent to
a total of 36 theoretical stages) wetted part: SUS316
Operating
pressure1.33kPaA - normal pressure operation
Heat source heat ing medium oil
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