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:
Apr. 01, 2008
Filed:
Sep. 08, 2004
Oiva Pehkonen, Ylöjärvi, FI;
Tarja Korhonen, Ylöjärvi, FI;
Pertti Oittinen, Västilä, FI;
Markku Helin, Tampere, FI;
Oiva Pehkonen, Ylöjärvi, FI;
Tarja Korhonen, Ylöjärvi, FI;
Pertti Oittinen, Västilä, FI;
Markku Helin, Tampere, FI;
Kvaerner Power Oy, Tampere, FI;
Abstract
A method for removing impurities accumulated in a scrubbing fluid in a flue gas scrubber and effluents from the scrubber. The flue gases are scrubbed with a scrubbing fluid that includes a calcium-containing absorbent. The scrubbing fluid containing gypsum and other impurities and produced in the scrubber is discharged from the scrubber. The gypsum is separated from the scrubbing fluid. To the scrubbing fluid is added an auxiliary agent, by the effect of which the impurities accumulated in the scrubbing fluid are removed with the gypsum and the moisture content of the gypsum to be separated from the scrubbing fluid is increased.