Distillation: apparatus – Apparatus – Systems
Patent
1989-09-22
1991-07-23
Bascomb, Wilbur
Distillation: apparatus
Apparatus
Systems
202181, 203 1, 203 39, 203 98, 203DIG19, 137172, B01D 332
Patent
active
050341022
ABSTRACT:
The column for distillation of charge products which form a heavier liquid phase and a lighter liquid phase and connected sump circulating boiler are provided with a liquid impermeable collecting bottom plate located in a lower part of the column. The bottom plate has a discharge passage and the column is provided with a liquid withdrawal outlet arranged closely underneath the collecting bottom plate but above the lower end of the discharge passage so that the heavier phase can be prevented from reaching the liquid withdrawal outlet by gravity. One pipe connects the sump circulating boiler with the liquid withdrawal outlet to provide a free flow of liquid from the column to the sump circulating boiler for heating and another pipe connects the column with the sump circulating boiler above the collecting bottom plate so that the reheated liquid can flow from the sump circulating boiler to the column without a circulating pump. The column also has a column sump arranged so that the lower part of the column opens into the column sump, which has a cross-section which is smaller than the cross-section of the remaining portion of the column; and a separating layer regulator for regulating a separating layer between the lighter and the heavier phase of the charge product and connected with the column sump having the smaller cross-section for greater sensitivity and reliability.
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Bascomb Wilbur
Krupp Koppers GmbH
Striker Michael J.
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