Record Display for the EPA National Library Catalog
RECORD NUMBER: 384 OF 1338
|OLS Field Name||OLS Field Data|
|Main Title||Evaluation of ammonia 'fixation' components in actual refinery sour waters /|
|CORP Author||American Petroleum Institute. Committee on Refinery Environmental Control.|
|Publisher||Robert S. Kerr Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,|
|Report Number||EPA/600/2-80/081; API-PUB-954; EPA-R-804364010|
|Subjects||Ammonia. ; Petroleum waste.|
|Additional Subjects||Water pollution control ; Ammonia ; Refineries ; Stripping(Distillation) ; Water analysis ; Industrial waste treatment ; Design ; Performance evaluation ; Chemical analysis ; Alkaline earth compounds ; Sulfur inorganic compounds ; Nitrogen inorganic compounds ; Metals ; Organic compounds ; Inorganic compounds ; Separation ; Cyanides ; Hydrogen sulfide ; Water pollution detection ; Heavy metals|
|Collation||124 pages : illustrations ; 28 cm.|
High ammonia concentrations (fixed ammonia) in stripped sour waters from petroleum refining are caused by weak organic acids and both weak and strong sulfur acids. The sulfur acids result from oxidation of sulfides present in sour water. Fixed ammonia can be eliminated by adding its molar equivalent of caustic to the top of the stripping column. Caustic addition does not interfere with sulfide removal. Recommended techniques for measuring cyanide and sulfide concentrations in sour waters are inadequate. Ammonia concentration may be overestimated when the recommended procedure is used because ammonia can be generated from organic nitrogen compounds which are present in refinery sour waters.
Conducted by SRI International under subcontract to the American Petroleum Institute, Committee on Refinery Environmental Control. Prepared for U.S. Environmental Protection Agency, Office of Research and Development, Robert S. Kerr Environmental Research Laboratory, Ada, Oklahoma, under grant no. R804364010. Includes bibliographical references (pages 76-77). Microfiche.