Biotreatment of refinery spent sulfidic caustics

Conference · Sun Dec 31 00:00:00 EST 1995

OSTI ID:377194

Sublette, K L; Rajganesh, B; Woolsey, M; Plato, A ^[1]

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1. Univ. of Tulsa, OK (United States); and others

Caustics are used in petroleum refinering to remove hydrogen sulfide from various hydrocarbon streams. Spent sulfidic caustics from two Conoco refineries have been successfully biotreated on bench and pilot scale, resulting in neutralization and removal of active sulfides. Sulfides were completely oxidized to sulfate by Thiobacillus denitrificans. Microbial oxidation of sulfide produced acid, which at least partially neutralized the caustic.

• Research Organization: US Department of Energy (USDOE), Washington DC (United States); Amoco Production Co., Houston, TX (United States); Conoco, Inc., Stamford, CT (United States)
• OSTI ID: 377194
• Report Number(s): CONF-9509296-; ON: DE96001221; TRN: 96:004054-0029
• Resource Relation: Conference: 2. international petroleum environmental conference: environmental issues and solutions in petroleum exploration, production, and refining, New Orleans, LA (United States), 25-27 Sep 1995; Other Information: PBD: 1995; Related Information: Is Part Of Environmental issues and solutions in petroleum exploration, production and refining; Sublette, K.L. [ed.]; PB: 1078 p.
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
55 BIOLOGY AND MEDICINE
BASIC STUDIES
WASTE WATER
WASTE PROCESSING
BACILLUS
METABOLISM
PETROLEUM REFINERIES
PH VALUE
SULFIDES
BIOCONVERSION
THIOSULFATES
SODIUM HYDROXIDES