(95a) Caustic Tower Design Fundamentals
AIChE Spring Meeting and Global Congress on Process Safety
2023
2023 Spring Meeting and 19th Global Congress on Process Safety
Topical 4: The 35th Ethylene Producers Conference
Caustic System Tutorial
Tuesday, March 14, 2023 - 2:05pm to 2:30pm
The Caustic Tower in an Ethylene Unit removes the acid gases (H2S and CO2) generated during the cracking process. This is required to meet Polymer Grade Ethylene product specifications and to protect downstream systems.
This presentation will provide an overview of the Caustic Tower, the basic reactions, and other design fundamentals and concepts. Caustic Tower design features for fouling prevention will also be covered, including potential impact of recycles introduced into the cracked gas system.