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Process and system for heating or cooling streams for a divided distillation column

  • US 8,999,117 B2
  • Filed: 03/04/2009
  • Issued: 04/07/2015
  • Est. Priority Date: 03/04/2009
  • Status: Active Grant
First Claim
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1. A system for separating a plurality of naphtha components, comprising:

  • a column, comprising;

    a dividing imperforate wall with one surface facing a feed and another surface facing at least one side stream wherein the wall extends a significant portion of the column height to divide the portion into at least two substantially vertical, parallel contacting sections;

    an overhead condenser receiving an overhead stream from the column; and

    a side condenser receiving a process stream from a side draw from the column at a point above the at least one side stream and the dividing imperforate wall and returning the stream to the column to facilitate separation;

    wherein a cooling stream passes through the overhead condenser and then the side condenser.

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