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A Study of Exhaust Emission Techniques and Changing the Structure in Catalytic Converter

2017 International Journal of Science and Research (IJSR)  
In the next few years air pollution, the stringency of NOx-and other gas-emissions have been increased twice in the last decade and emerging technologies in emission controls has been recommended.  ...  By changing the structure the contact area and time of contact of exhaust gases with ceramic layer substrate. If these things were done, the emission is reduced to some extent.  ...  The catalytic converter is expected to attain conversion efficiencies of the order of 95% or above for the main exhaust gas pollutants, namely CO, hydrocarbons and NOx.  ... 
doi:10.21275/art20178709 fatcat:mpwyi6kzjzarlmkixcngdbluxy

The Diesel Fuel Post-Injection into Engine Cylinder as Method of Nox Reduction

Zygmunt Szlachta, Jerzy Cisek
2003 Communications - Scientific Letters of the University of Zilina  
Probably because of high exhaust gas temperatures and an excess of oxygen, further reactions of nitrogen oxidation take place in the converter (the exhaust gas temperature after the converter is lower,  ...  The influence of exhaust gas temperature before the converter on the efficiency of NO x catalytic reduction in a Cu/ZSM-5 converter Table 1 1 .  ... 
doi:10.26552/com.c.2003.1.26-35 fatcat:bnjw5l5wpvfzjg6wf4gxhhbpvi

An overview on metal-oxide catalytic converters

Ecaterina–Magdalena MODAN, University of Pitesti, Adriana-Gabriela PLAIASU
2020 University of Pitesti Scientific Bulletin - Automotive Series  
In this paper is presented the types of catalytic converters used nowadays for dissipate emissions and selective catalytic reduction.  ...  Efforts have been made to develop catalysts for the selective catalytic reduction of NOx.  ...  in lower temperature conditions have 2 ~ 3 times the amount of catalytic material as a TWC for the same amount exhaust gas cleaning [17] .  ... 
doi:10.26825/ fatcat:u4ucjs4slbfincac2t6g5ycomu

Design and Fabrication of Two-Wheeler Silencer Using Catalytic Convertor

M. Ganesh, A. Sriramarvind, P. K. Saran Kumar
2019 International Journal of Scientific Research in Science Engineering and Technology  
In automobile pollutants can be reduced by using a catalytic converter the main aim of our project is fabricate the low cost catalytic converter for two wheeler.  ...  The main pollutants are contributed by automobiles which include carbon monoxide (CO), unburned hydrocarbon (UBHC), oxides of nitrogen (NOx) and Lead.  ...  Also to increase the retention period of exhaust gas in catalytic converter providing more time for its is a device which is incorporated into the exhaust system of an automobile that reduces the amount  ... 
doi:10.32628/ijsrset196247 fatcat:dagqa6aacna4pd6hy3nbuhxqvm

Dynamic Response of a Three-Way Catalytic Converter

HE Ling, YU Xiu-Min, LI Guo-Liang, XU Nan
2012 Energy Procedia  
In an engine transient condition, effects of different exhaust mass flows, inlet signal amplitudes and periods on dynamic responses of the three-way catalytic converter were investigated experimentally  ...  Experimental results show that exhaust mass flows, inlet signal amplitudes and periods have important influence on engine emissions and oxygen storage capacity of Ceria for the three-way catalytic converter  ...  Acknowledgment The research reported in this paper was carried out with the support of the Control-Oriented Model of the Catalytic Converter program.  ... 
doi:10.1016/j.egypro.2012.02.134 fatcat:de74zlyb3fak5lu4wux4fs6qbq

Honeycomb-Shaped Brass Plate Catalyst to Reduce Motor Vehicle Emissions

Ali Mokhtar, Ali Saifullah, Andinusa Rahmandhika
2021 JEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering)  
The increasing number of motorized vehicles has a direct impact on exhaust gas air pollution.  ...  A decrease in HC gas emissions by 19.1% for a single catalytic converter and 33.7% for a dual catalytic converter is better compared to without using a catalytic converter or standard conditions.  ...  Exhaust gas emissions in the form of hazardous chemicals will be converted into harmless chemicals using a catalytic converter in the exhaust gas line [16] , [17] .  ... 
doi:10.22219/jemmme.v6i1.15532 fatcat:ipggpc7hofar3dgs2oqoi6hxrm


2004 Chemical Engineering Communications  
The application of mathematical models to the prediction of the performance of automotive catalytic converters is gaining increasing interest, both for gasoline and diesel engined-vehicles.  ...  This article addresses converter modeling in the transient state under realistic experimental conditions.  ...  The complicated mixture of exhaust gas hydrocarbons was simulated in the above-described model with three hydrocarbons: a fast-oxidizing HC, represented by propene, a slow-oxidizing HC, represented by  ... 
doi:10.1080/00986440490472634 fatcat:mc6es42omjdsdahlr6kf6r5eza

Minimization Of Pollutants Of Exhaust Gas From High Traffic Area & Industrial Sector By Using Exothermic Reaction

2017 Zenodo  
By Experimental analysis, the percentage of pollutants from exhaust gas is minimized.  ...  An unsteady state behaviour of gas absorption column for CO2-NaOH system was carried out using the arm field gas absorption column.  ...  The flowing exhaust gas is free to move in all directions inside the Catalytic Converter.  ... 
doi:10.5281/zenodo.1461398 fatcat:xhuscmr4ubgddco4xe3bzx5roa

Simulation on Toxic Gases in Vehicle Exhaust Equipped with Modified Catalytic Converter : A Review

A.M. Leman, Fakhrurrazi Rahman, Afiqah Jajuli, Winardi Sani, Supa'at Zakaria, Dafit Feriyanto, S. Sharif, M.M.A.B. Abdullah, S.Z. Abd Rahim, M.F. Ghazali, N. Mat Saad, M.M. Ramli (+2 others)
2016 MATEC Web of Conferences  
The objective of this study is to obtain a quantitative description of the gas emission in the catalytic converter system of automobile exhaust gas using ANSYS Software.  ...  The description of the gas emission in the catalytic converter system of automobile exhaust gas using ANSYS Software was simulated in this research in order to provide better efficiency and ease the reusability  ...  This work was financially supported by Ministry of Education through FRGS Vote 1612 and ORICC, Universiti Tun Hussien Onn Malaysia (UTHM) for the management of the research grant and Centre for Graduate  ... 
doi:10.1051/matecconf/20167801044 fatcat:lflzp6pixvbt7hkhxxvxgheg44

NOx Reduction in Ag/Al2O3-SiO2 Converters in the Exhaust of a Compression-Ignition Engine

Stanisław W. Kruczyński, Piotr Orliński, Marcin Ślęzak
2020 Energies  
For this reason, converters using hydrocarbons for the purpose of NOx reduction have been gaining in popularity. An Ag/Al2O3-SiO2 converter is an example of such a catalytic converter.  ...  mixture combustion processes, or through the use of catalytic converters designed to reduce nitrogen oxides, including NH3-SCR or HC-SCR converters.  ...  The highest nitrogen oxides reduction rate in the widest range of exhaust gas temperature was achieved for the IAg/Al 2 O 3 -SiO 2 and IIAg/Al 2 O 3 -SiO 2 converters.  ... 
doi:10.3390/en14010020 fatcat:jyhmcaohfve7hdhithwt3z7vc4

Modeling of Exhaust-Gas After-Treatment

Olaf Deutschmann, Daniel Chatterjee
2017 Emission Control Science and Technology  
Tremendous reduction of hydrocarbons, carbon monoxide, nitric oxides, and particulates emitted from internal combustion engines is today achieved by the application of automotive catalytic converters and  ...  detailed understanding of the complex processes in the converter under varying inlet conditions, i.e., exhaust-gas compositions, flow rate, and temperature.  ...  Tremendous reduction of hydrocarbons, carbon monoxide, nitric oxides, and particulates emitted from internal combustion engines is today achieved by the application of automotive catalytic converters and  ... 
doi:10.1007/s40825-017-0077-z fatcat:zl55vx2ndvcehiqgttqsfa5yjm

A Review on Performance Enhancement of Catalytic Conveter by Making Geometrical Changes

Vinayak Shukla, Prof. Yogesh Tembhurne
2018 International Journal of Trend in Scientific Research and Development  
CO, unburned HC and particulate matter increases the global warming, so catalytic converter plays an vital role in reducing harmful gases, but the presence of catalytic converter increases the exhaust  ...  Catalytic monolith converters have been used for nearly four decades to reduce the toxicity of exhaust gases from the internal combustion engine powering automotive/machines The harmful gases like NOX,  ...  and a numerical study on the reverse flow catalytic converter for a natural gas/diesel dual engine.  ... 
doi:10.31142/ijtsrd13058 fatcat:fwpqzeooznbb3erhaprxl4fpca

Redesign of Catalytic Converter

T. Sekar T. Sekar, P. Kumaran P. Kumaran, S. Mohana Murugan, A. Sivasubramanian A. Sivasubramanian
2012 International Journal of Scientific Research  
In the present work, the modelling of ceramic monolith substrate with square shaped channel type of Catalytic converter and insertion of platinum and palladium aerogels to provide better cost efficiency  ...  Stringent emission regulations around the world necessitate the use of high-efficiency catalytic converters in vehicle emission systems.  ...  One of the solutions for a Reduction of nitrogen oxides into basic nitrogen & safer exhaust gases is in the conversion of harmful oxygen: emissions into harmless end products is by the use of catalytic  ... 
doi:10.15373/22778179/july2014/47 fatcat:5j2y66vzdndlxhw3fuq4c7wdpy


2017 RASAYAN Journal of Chemistry  
The cerium oxide increase the conversion rate due to the oxygen content for the oxidation process of carbon monoxide and hydrocarbon in the catalytic converter.  ...  The experimental result reveals that the influence of cerium oxide in the form of nanoparticles for oxides of nitrogen, hydrocarbon and carbon monoxide levels in a diesel engine.  ...  The cerium oxides act as a Nano particle to provide oxygen for the oxidation of CO and HC in the catalytic converter.  ... 
doi:10.7324/rjc.2017.1021685 fatcat:qxgmiofaarecfbsbhhpfbanlu4

Development and characterization of cerium oxide catalyst supported on ceramic honeycomb substrate to reduce emissions of spark ignition engine

M.C. Math, M.S. Manjunath
2016 Journal of Mechanical Engineering and Sciences  
In this work, cerium oxide (CeO2) coated on the ceramic honeycomb substrate was used as a catalyst to lower the cost of a catalytic converter.  ...  A reduction of 34% carbon monoxide and 33% un-burnt hydrocarbon was observed at the idling condition with CeO2 as the catalyst and glow plug as the heating source in the catalytic converter.  ...  The author would like to be obliged to Tech-Ed Equipment Company Pvt. Ltd, Bangalore (India) for providing laboratory facilities to carry the exhaust gas analysis.  ... 
doi:10.15282/jmes.10.2.2016.2.0186 fatcat:n7rubhosbfg4bmabwhtjtntg7e
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