High molecular weight hydrocarbons including polycyclic aromatic hydrocarbons in natural gas from consumer distribution pipelines and in pipeline residue

Journal Article · Mon Jul 01 04:00:00 EDT 1985 · Environ. Sci. Technol.; (United States)

DOI:https://doi.org/10.1021/es00137a004· OSTI ID:5171419

Eiceman, G A; Davani, B; Wilcox, M E; Gardea, J L; Dodson, J A

Eight samples of natural gas were collected from consumer distribution lines in five urban centers in the US Southwest. Gas samples were preconcentrated for gas chromatography (GC) and gas chromatography/mass spectroscopy (GC/MS) determination of concentrations of large (C/sub 9/-C/sup 20/) molecular weight organic compounds in natural gas. Major components in samples included alkylated benzenes, alkylated naphthalenes, and alkanes at total concentrations between 0.3 and 3 mg/m/sup 3/. Complex mixtures of 30-60 components were detected in these condensates, and complex mixtures of polycyclic aromatic hydrocarbons were found in the natural gas at concentrations of 2-240 ..mu..g/m/sub 3/ for individual PAH. Residues on inner walls of natural gas pipelines were also analyzed by using high-resolution GC and GC/MS. Samples were quantified for PAH, and results were compared to composition of natural gas and to discharge water from hydrostatic testing of gas pipelines. Over 25 PAH were detected in pipeline residue at total concentrations of 1-2400 ..mu..g/m/sup 2/ of inner surface area.

• Research Organization: New Mexico State Univ., Las Cruces
• OSTI ID: 5171419
• Journal Information: Environ. Sci. Technol.; (United States), Journal Name: Environ. Sci. Technol.; (United States) Vol. 19:7; ISSN ESTHA
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
033000* -- Natural Gas-- Properties & Composition
ALKANES
ALKYLATED AROMATICS
AROMATICS
BENZENE
CHEMICAL COMPOSITION
CHROMATOGRAPHY
CONDENSED AROMATICS
DATA
DISPERSIONS
ENERGY SOURCES
ENERGY SYSTEMS
EXPERIMENTAL DATA
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS CHROMATOGRAPHY
GAS FUELS
GASES
HYDROCARBONS
INFORMATION
MASS SPECTROSCOPY
MIXTURES
NAPHTHALENE
NATURAL GAS
NATURAL GAS DISTRIBUTION SYSTEMS
NUMERICAL DATA
ORGANIC COMPOUNDS
PIPELINES
POLLUTION SOURCES
POLYCYCLIC AROMATIC HYDROCARBONS
RESIDUES
SAMPLING
SEPARATION PROCESSES
SPECTROSCOPY