JPH0616818B

PURPOSE:To efficiently clean exhaust gas by mixing ozone with the exhaust gas contg. NOx, oxidizing NOx into N2O5 by a catalytic material, such as Mn-oxide catalyst, Ni-oxide catalyst and activated carbon, and then absorbing and removing them with high efficiency. CONSTITUTION:Ozone sent from an ozo...

Full description

Saved in:
Bibliographic Details
Main Authors TAKAO SHOICHI, UEJIMA KENRO, TATSUMI SHUHEI, ITO HAYAMIZU
Format Patent
LanguageEnglish
Published 09.03.1994
Edition5
Subjects
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR RELEVANT APPARATUS
TRANSPORTING
Online AccessGet full text

Cover

More Information
Summary:PURPOSE:To efficiently clean exhaust gas by mixing ozone with the exhaust gas contg. NOx, oxidizing NOx into N2O5 by a catalytic material, such as Mn-oxide catalyst, Ni-oxide catalyst and activated carbon, and then absorbing and removing them with high efficiency. CONSTITUTION:Ozone sent from an ozonizer 2 is mixed with the exhaust gas contg. NOx of NO, NO2, etc. This mixed gas is passed through the catalyst layer 1 whose main component is a catalytic material selected from a group consisting of MnO2, NiO, SiO2, TiO2, CuO and activated carbon, to oxidize NOx into N2O5 and simultaneously to decompose unreacted ozone. Moreover, N2O5, NOx in the mixed gas are absorbed and removed by the catalyst layer 1. As a result, exhaust gas, such as the exhaust gas in a tunnel, is efficiently cleaned.
Bibliography:Application Number: JP19900074936