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:
Nov. 25, 2008
Filed:
Dec. 26, 2003
Masayoshi Sadakata, Tokyo, JP;
Mitsuo Koshi, Tokyo, JP;
Masateru Nishioka, Miyagi, JP;
Japan Science and Technology Agency, Kawaguchi-shi, JP;
Abstract
It is an high efficiency and low cost apparatus for simultaneous dry desulfurization and denitration (), capable of simultaneous oxidation of nitrogen monoxide and sulfur dioxide by chain reaction with OH radical, provided with an OH radical supplying unit (), a reactor (), a sulfuric acid recovering unit (), and a nitric acid recovering unit (). Exhaust gas at 600-800° C. containing sulfur compounds from a boiler () is introduced into the reactor (), nitric acid is spray-supplied from an OH radical supplying unit () into the reactor (), sulfur dioxide and nitrogen monoxide are simultaneously oxidized with OH radicals generated from pyrolysis of nitric acid as an initiator to form sulfur trioxide and nitrogen dioxide, thereby exhaust gas is treated.