Measuring and testing – Gas analysis – Odor
Patent
1996-10-10
1998-12-01
Williams, Hezron E.
Measuring and testing
Gas analysis
Odor
250373, G01N 2123
Patent
active
058441247
ABSTRACT:
A method, an apparatus, and an integrated system using the apparatus for measuring a concentration of odorant in odorized gas which is produced by adding the odorant to un-odorized gas comprised mainly of hydrocarbon gas. In a detection absorbance measuring step, there is obtaining detection odorized gas absorbance which is absorbance of the odorized gas relative to a detecting ultraviolet light having high absorbability to the odorant and low absorbability to the un-odorized gas. In a subsequent concentration deriving step, the odorant concentration in the odorized gas is derived from the detection odorized gas absorbance.
REFERENCES:
patent: 3694086 (1972-09-01), May
patent: 3826920 (1974-07-01), Woodroffe et al.
patent: 3935463 (1976-01-01), Jacobsen
patent: 5604298 (1997-02-01), Dosoretz et al.
patent: 5621213 (1997-04-01), Barshad
EPO; Patent Abstracts of Japan; Publ No. JP60031056; Publ Date Feb. 16, 1985; Appln No. JP 830139340; Appln Date Aug. 1, 1983; Patentee Tokyo Gas KK; Inventor O Koukichi et al; Method for Measuring Concentration of Odorant THT Ingas.
Abstract (Basic) : DE 42 32 371 A; Abstract (Equivalent) : De 42 32 371 C.
Shimokawatoko Takayuki
Sumida Koichi
Ueda Hirofumi
Larkin Daniel S.
Osaka Gas Co. Ltd.
Williams Hezron E.
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