Treatment of mercaptan-containing streams utilizing nitrogen based promoters
Patent
·
OSTI ID:7058301
An improved method is described of sweetening a sour hydrocarbon distillate having mercaptan compounds therein by the catalytic oxidation of the mercaptan compounds to disulfide compounds, wherein the distillate is contacted with a caustic solution, an oxidizing agent and a metal chelate mercaptan oxidation catalyst for a period of time sufficient to oxidize at least a portion of the mercaptan compounds to disulfide compounds, the improvement comprising contacting the distillate. The caustic solution, the oxidizing agent and the metal chelate mercaptan oxidation catalyst in the presence of from about 1 pm to about 50 ppm by weight, based upon the distillate, of a nitrogen-based promoter, wherein the nitrogen-based promotor comprises a non-electrolytic, substantially sulfur free organic compound has at least one nitrogen atom.
- Assignee:
- Merichem Co., Houston, TX
- Patent Number(s):
- US 4753722
- OSTI ID:
- 7058301
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020400* -- Petroleum-- Processing
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
DESULFURIZATION
DISTILLATES
ENERGY SOURCES
FOSSIL FUELS
FUELS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDATION
OXIDIZERS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
REMOVAL
SULFIDES
SULFUR COMPOUNDS
SULFUR CONTENT
THIOLS
020400* -- Petroleum-- Processing
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
DESULFURIZATION
DISTILLATES
ENERGY SOURCES
FOSSIL FUELS
FUELS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDATION
OXIDIZERS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
REMOVAL
SULFIDES
SULFUR COMPOUNDS
SULFUR CONTENT
THIOLS