Spent Caustic Processing Overview

Study Notes

T-344 (Degassing Tower)

T-344 is designed to degas caustic solutions, featuring dimensions of 1'18" in diameter and 12' in length.
Spent caustic enters from the side, while the purge gas is expelled from the top.
The degassed spent caustic exits from the bottom directly into D-344, the Spent Caustic Settling Drum.

D-344 (Spent Caustic Settling Drum)

D-344 separates two liquid phases into a spent caustic stream and a skimmed hydrocarbon stream.
It has dimensions of 6' in diameter and 24' in length.

P-344 (Spent Caustic Transfer Pump)

P-344 transfers spent caustic from D-344 to Unit 1971 TK-60.
It is a centrifugal pump powered by a 1.5 HP induction electric motor operating at 3550 RPM.

E-344A/B (Spent Caustic Coolers)

E-344A/B are hairpin heat exchangers designed to cool spent caustic streams.
Cooling takes place on the tube side, using cooling water on the shell side.

P-345A/B (Hydrocarbon Recovery Pumps)

P-345A/B pump skimmed hydrocarbons from D-344 to D-340, the Caustic Wash Settler.
These are centrifugal pumps driven by a 3 HP induction electric motor running at 1725 RPM.

P-346 (Hi Volume Hydrocarbon Recovery Pump)

P-346 handles high-volume skimmed hydrocarbons from D-344 to D-340.
It operates as a centrifugal pump powered by a 30 HP induction motor at 3550 RPM.

Description

This quiz covers the equipment used in processing spent caustic solutions, including T-344, D-344, and P-344 among others. It details how each component functions and their physical specifications. Understand the interconnectivity of these systems to ensure efficient operation.