Measuring and testing – Gas analysis – Gas chromatography
Patent
1982-08-30
1984-06-05
Kreitman, Stephen A.
Measuring and testing
Gas analysis
Gas chromatography
G01N 3108
Patent
active
044520670
ABSTRACT:
The present analyzing apparatus provides a means for vapor phase analysis of process streams containing a non-condensable phase, and a condensable phase wherein the phases are variously comprised of hydrogen, water, oxides of carbon, aliphatic hydrocarbons and aromatic hydrocarbons. A sample is passed into a first separation means wherein the aromatic hydrocarbons are separated from the hydrogen, water, oxides of carbon and aliphatic hydrocarbon. The hydrogen, water oxides of carbon and aliphatic hydrocarbons are passed in a second separation means while the aromatic hydrocarbons are held in the first separation, and separated into the constituent elements and compounds and thereafter passed into a first detection means wherein the concentration of each constituent is determined. The aromatic hydrocarbons are passed from a first separation means to a third separation means where the aromatic hydrocarbons are separated into the constituent compounds. Thereafter the constituent compounds are passed into a second detection means where the concentration of each constituent is determined. The sample is kept in the vapor phase during the process.
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Ahlstrom, Jr. Ross C.
Meppen Craig E.
Kreitman Stephen A.
Sims Norman L.
The Dow Chemical Company
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