نتایج جستجو برای: nox removal

تعداد نتایج: 150283  

2012
IOAN CALINESCU DIANA MARTIN DANIEL IGHIGEANU ANCA MIHAELA BULEARCA

This paper presents the experimental results obtained during the irradiation process with electron beam of flue gases generated by burning fuel with a high content in sulphur. The ALIN-10 accelerator was used for generating the electron beam. The necessary water was sprayed into the gaseous mixture as fine droplets by the mist pump. The highest removal efficiencies were obtained in the presence...

2009
M. Blajan T. Ishii H. Mimura K. Shimizu

Emission spectra of the microplasma discharge in N2, NO and O2 gas mixture was analyzed. The diagnosis of microplasma discharge was performed in order to understand the processes of NOx removal. An experimental Marx Generator was used as a pulsed power supply. Emission spectra for N2 gas show N2 second positive band system (N2 SPS) and N2 first negative band system (N2 FNS). 1000 ppm NO in N2 e...

2011
Naoki Osawa Yoshio Yoshioka Ryoichi Hanaoka

NOx (Nitrogen Oxides) and PM (Particular Matter) emitted from diesel engines are one of the causes of air pollution. In this research, NOx removal performance from simulated diesel exhaust gas by Townsend type DBD (Dielectric Barrier Discharge) and filamentary type DBD was investigated. As the results, it became apparent that (1) NO concentration decreased with the increase of specific input en...

1999
K. W. Jucks D. G. Johnson K. V. Chance W. A. Traub R. J. Salawitch R. A. Stachnik

We present the first simultaneous measurements of HOx, NOx, and Clx radicals in the middle stratosphere obtained during a balloon flight at 34 N in September 1989, along with calculations from a photochemical model, to show that NOx catalytic cycles dominate loss of ozone (O3) for altitudes between 24 and 38 km; the observed abundance of ClO is lower than that expected for altitudes above 30 km...

2011
E. A. Filimonova C. Li U. Ebert

1 Joint Instit. High Temp., Russian Acad. Sci., Izhorskaya st. 13, 2 building, 125412 Moscow, Russia Oranjewoud-HMVT, P.O. Box 8590, 3009 AN Rotterdam, The Netherlands Eindhoven University of Technology, P.O.Box 513, 5600 MB Eindhoven, The Netherlands Centrum Wiskunde and Informatica (CWI), P.O.Box 94079, 1090 GB Amsterdam, The Netherlands e-mails: [email protected], [email protected], ebert@c...

Journal: :IEEJ Transactions on Fundamentals and Materials 1999

Journal: :Journal of environmental chemical engineering 2021

Three commercial exterior photocatalytic paints, from STO, Boysen and Graphenstone one In-house paint, are tested using the NO ISO; FT-IR analysis shows that all paints contain an acrylate binder, but also siloxane and/or silicate binders. All exhibit little or no activity (for removal) without weathering. The only activated by ‘standard’ weathering, i.e. a continuous cycle of UV irradiation (0...

Journal: :Journal of Geoscience and Environment Protection 2019

Journal: :Sustainability 2023

Nitrogen oxide (NOx) is a significant precursor of particulate matter (PM), particularly in high-traffic areas. Accordingly, this study aimed to reduce the presence nitrogen along roadsides. Titanium dioxide (TiO2) used as photocatalyst remove NOx through chemical reaction. Typically, concrete and TiO2 are mixed create concrete. However, air pollutants or UV rays cannot be allowed come into con...

2015
Pouyan Talebizadeh Hassan Rahimzadeh Meisam Babaie Saeed Javadi Anaghizi Hamidreza Ghomi Goodarz Ahmadi Richard Brown Subrata Roy

Non-thermal plasma (NTP) has been introduced over the last few years as a promising after- treatment system for nitrogen oxides and particulate matter removal from diesel exhaust. NTP technology has not been commercialised as yet, due to its high rate of energy consumption. Therefore, it is important to seek out new methods to improve NTP performance. Residence time is a crucial parameter in en...

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