Determination of 1-methyl-2-pyrrolidone in refinery hydrocarbons and waters by gas chromatography
Journal Article
·
· Anal. Chem.; (United States)
A new procedure has been developed for the trace and percent level determination of 1-methyl-2-pyrrolidone (NMP) in water and heavy oil refinery feedstocks. By extraction of the NMP into an aqueous phase, analysis can be quickly performed on a gas chromatograph equipped with a flame ionization detector and a nitrogen-phosphorus detector. Recycle and cleanup time is held to a minimum as heavy hydrocarbons are never directly analyzed. Quick analysis and accurate results provide the data necessary for optimal operation of the NMP extraction unit in the refinery. Percent and parts-per-million results are repeatable to 0.1% and 2.0 ppm. The large repeatability for part-per-million determinations is due to NPD instability and contamination of the gas chromatograph's injector.
- Research Organization:
- Amoco Oil Co., Whiting, IN
- OSTI ID:
- 5870408
- Journal Information:
- Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 56:9; ISSN ANCHA
- Country of Publication:
- United States
- Language:
- English
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Patent
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Mon Nov 07 23:00:00 EST 1977
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OSTI ID:5326521
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Related Subjects
02 PETROLEUM
020900 -- Petroleum-- Environmental Aspects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
AMIDES
AZOLES
CHEMICAL ANALYSIS
CHROMATOGRAPHY
DATA
EXPERIMENTAL DATA
EXTRACTION
GAS CHROMATOGRAPHY
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
HYDROGEN COMPOUNDS
INDUSTRIAL PLANTS
INFORMATION
LACTAMS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM REFINERIES
PYRROLES
PYRROLIDONES
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
SOLVENT EXTRACTION
VISCOSITY
WATER
020900 -- Petroleum-- Environmental Aspects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
AMIDES
AZOLES
CHEMICAL ANALYSIS
CHROMATOGRAPHY
DATA
EXPERIMENTAL DATA
EXTRACTION
GAS CHROMATOGRAPHY
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
HYDROGEN COMPOUNDS
INDUSTRIAL PLANTS
INFORMATION
LACTAMS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM REFINERIES
PYRROLES
PYRROLIDONES
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
SOLVENT EXTRACTION
VISCOSITY
WATER