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:
Oct. 10, 1978
Filed:
Jul. 21, 1977
Applicant:
Inventors:
Shigeru Azuhata, Hitachi, JP;
Hideo Kikuchi, Hitachi, JP;
Hidetoshi Akimoto, Tokaimura, JP;
Yukio Hishinuma, Hitachi, JP;
Yoshijiro Arikawa, Hitachi, JP;
Assignee:
Hitachi, Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423235 ; 423351 ;
Abstract
Nitrogen oxides in a combustion flue gas are removed by reduction in a gaseous phase at a low temperature in the absence of any catalyst by adding urea and an oxidizing agent for decomposition of urea, such as ozone, nitric acid, hydrogen peroxide, chlorine, chlorine dioxide, or oxy acids of chlorine or their salts. NO.sub.x removal can be carried out in a very simplified manner with high percent NO.sub.x removal.
Azuhata, Shigeru. (1978). Process for abating concentration of nitrogen oxides in combustion flue (U.S. Patent No. 4119702). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4119702
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile