Process and apparatus for oxidizing industrial spent caustic and

Liquid purification or separation – Processes – Including controlling process in response to a sensed condition

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210744, 210758, 210765, 210761, 55228, 95187, 95188, C02F 174

Patent

active

053544820

ABSTRACT:
An improved process for oxidizing industrial spent caustic streams, whereby oxidation of spent caustic occurs in a unitary processing tower with three chambers that cooperate simultaneously to oxidize the caustic in the first chamber; to separate the caustic from the oxidizing gas in the second chamber; and, in the third chamber, to pass gas and cooled caustic through a mass transfer apparatus that cools and cleans the gas and releases the caustic and gas into a gas-liquid separation zone of the upper chamber. An alternative embodiment of the invention involves spatially separating the upper chamber from the other two chambers.

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