Measuring and testing – Sampler – sample handling – etc. – Flow divider – deflector – or interceptor
Patent
1994-01-31
1995-02-21
Williams, Hezron E.
Measuring and testing
Sampler, sample handling, etc.
Flow divider, deflector, or interceptor
7386435, 73 1901, 73 191, 73 2338, 73 2341, 436139, 436143, G01N 700, G01N 124
Patent
active
053905512
ABSTRACT:
A method for determining the concentration of a monitored gas in the head space of a confined space containing a medium material at a given temperature (T.sub.1), includes the steps of: (a) providing an extracting apparatus having a chamber for receiving a sample volume of the material to be extracted from the confined space; (b) controlling the temperature of the chamber such that the temperature of the chamber is maintained at the given temperature (T.sub.1) of the confined space; (c) withdrawing a sample volume of the material from the confined space and into the chamber; (d) feeding a volume of inert gas into the chamber and mixing the inert gas with the material to form a mixture; (e) allowing the mixture to reach equilibrium wherein a head space of gas is formed in the chamber over the material; (f) withdrawing a first gas sample from the head space of the chamber; (g) determining the concentration of the monitored gas in the first gas sample; (h) expelling the gas from the head space of the chamber; (i) repeating steps (d)-(g) so as to determine the concentration of the monitored gas in at least a second gas sample; (j) determining the equilibrium constant of the material at the given temperature (T.sub.1) in accordance with a specified formula; and (k) determining the concentration of the monitored gas in the head space of the confined space in accordance with another specified formula.
REFERENCES:
patent: 2534489 (1950-12-01), Webber et al.
patent: 3357232 (1967-12-01), Lauer
patent: 3715910 (1973-02-01), Fore et al.
patent: 3753656 (1973-08-01), Matson et al.
patent: 3790348 (1974-02-01), Bossart et al.
patent: 3888109 (1975-06-01), Sharki et al.
patent: 3927978 (1975-12-01), Wasik
patent: 4096734 (1978-06-01), Khayat
patent: 4101282 (1978-07-01), Ririe
patent: 5222032 (1993-06-01), Fleming
patent: 5235843 (1993-08-01), Longhorst
patent: 5266496 (1993-11-01), Dacruz
patent: 5277074 (1994-01-01), Poole et al.
Kriegel, Monroe, W., "Analysis For Hydrocarbons in the Presence of Nitrous Oxide", pp. 447-462, Mar. 1944.
Carvajal Nelson
Gonzales Alejandro
Silva Beatriz
Intevep S.A.
Larkin Daniel S.
Williams Hezron E.
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