The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 05, 2006
Filed:
Jun. 25, 2001
Naoki Noda, Kanagawa, JP;
Shigeo Ito, Kanagawa, JP;
Koji Marumoto, Tokyo, JP;
Koji Tanida, Osaka, JP;
Munehiro Hoshino, Osaka, JP;
Naoki Noda, Kanagawa, JP;
Shigeo Ito, Kanagawa, JP;
Koji Marumoto, Tokyo, JP;
Koji Tanida, Osaka, JP;
Munehiro Hoshino, Osaka, JP;
Central Research Institute of Electric Power Industry, Tokyo, JP;
Nippon Instruments Corporation, Tokyo, JP;
Abstract
A method and an apparatus which continuously separate and measure mercury in an exhaust gas in accordance with each chemical conformation and display a measurement result in real time. According to the method and the apparatus, water-soluble mercury in a gas is absorbed into an absorption solution (), the gas and the absorption solution () are then separated from each other, the water-soluble mercury in the absorption solution () is reduced to be converted into gaseous metal mercury and led to an analyzer (), and metal mercury in the gas which is not absorbed into the absorption solution () is led to an analyzer () in the form of gas. As a result, the water-soluble mercury and the non-water-soluble mercury contained in the gas can be captured and measured/analyzed in respective measurement systems in accordance with each chemical conformation. In addition, a concentration of the metal mercury and that of the water-soluble mercury in the gas can be continuously monitored in real time. In this analysis, it is preferable to use the absorption solution () to absorb an acid gas which is an inhibitive component to mercury measurement, together with the water-soluble mercury.