Pluses and minuses of caustic treating
- Merichem Co., Houston, TX (United States)
In recent years, refineries and petrochemical plants worldwide have faced stricter controls on liquid and gas effluent discharge streams that could cause air or water pollution. Spent caustic (NaOH) solutions are liquid effluents that must be properly managed to maintain the plant`s discharge quality. Since there are different types of spent caustic streams, refiners must correctly categorize them to use the most effective disposal or treating method. In refineries, caustic is primarily used to remove sulfur compounds from light streams and oxidize mercaptans in heavier streams. The pluses and minuses of caustic treating are presented to help refiners and other petrochemical plant operators make careful, intelligent economic choices. Although the focus is on refinery treating operations, the information presented applies equally well to many other petrochemical operations.
- OSTI ID:
- 392552
- Journal Information:
- Hydrocarbon Processing, Vol. 75, Issue 10; Other Information: PBD: Oct 1996
- Country of Publication:
- United States
- Language:
- English
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