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:
Aug. 31, 1976
Filed:
Nov. 12, 1975
Shimpei Matsuda, Hitachi, JA;
Fumito Nakajima, Hitachi, JA;
Masato Takeuchi, Katsuta, JA;
Shigeo Uno, Hitachi, JA;
Akira Kato, Hitachi, JA;
Makoto Imanari, Ibaraki, JA;
Yoshihisa Watanabe, Ibaraki, JA;
Hitachi, Ltd., ALL OF, JA;
Mitsubishi Petrochemical Company Limited, ALL OF, JA;
Babcock-Hitachi K.K., all of, JA;
Abstract
An ammonia gas to be determined, and an oxidative gas containing nitrogen oxides in moles more than those of the ammonia are brought into contact with an analytical catalyst capable of forming nitrogen and water from ammonia and nitrogen oxides. Concentrations of nitrogen oxides of the gas before and after the contact with the analytical catalyst are determined, and an ammonia concentration of the gas is determined by converting the difference between the concentrations of nitrogen oxides to the ammonia concentration by calculation.