Pilot-scale biotreatment of refinery spent sulfidic caustics
Conference
·
OSTI ID:150450
- Univ. of Tulsa, OK (United States)
- Conoco, Inc., Ponca City, OK (United States)
Caustics are used in petroleum refining to remove hydrogen sulfide from various hydrocarbon streams. It was previously demonstrated that spent sulfidic caustics from two Conoco refineries could be successfully biotreated at the bench scale, resulting in neutralization and removal of active sulfides. Sulfides were completely oxidized to sulfate to Thiobacillus denitrificans. Microbial oxidation of sulfide produced acid, which at least partially neutralized the caustic. Biotreatment of a Conoco spent sulfidic caustic has now been demonstrated at pilot scale (1000 gal or 3875 L). Results were comparable to those obtained at the bench scale. The economics and design of a commercial system to treat 1 gpm (3.8 L/min) of spent caustic are resented.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- OSTI ID:
- 150450
- Report Number(s):
- CONF-940526--
- Country of Publication:
- United States
- Language:
- English
Similar Records
Biotreatment of refinery spent sulfidic caustics
A preliminary cost analysis of the biotreatment of refinery spent-sulfidic caustic
Biotreatment of refinery spent sulfidic caustic by specialized cultures and acclimated activated sludge
Conference
·
Sat Dec 30 23:00:00 EST 1995
·
OSTI ID:377194
A preliminary cost analysis of the biotreatment of refinery spent-sulfidic caustic
Journal Article
·
Tue Dec 30 23:00:00 EST 1997
· Applied Biochemistry and Biotechnology
·
OSTI ID:576270
Biotreatment of refinery spent sulfidic caustic by specialized cultures and acclimated activated sludge
Journal Article
·
Mon Dec 30 23:00:00 EST 1996
· Applied Biochemistry and Biotechnology
·
OSTI ID:598248