QUENCH COLUMN PH CONTROL

摘要

A process for controlling quench column pH includes adding acid to the quench column to control pH in a quench column effluent from one or more quench columns. In one aspect, the process includes measuring a pH of quench column condensate and adjusting an amount of acid added to the quench column to maintain of pH of about 3.5 to about 7 in the condensate. Measurement of condensate pH provides a consistent and accurate procedure for controlling acid addition to the quench column.