Development and Test of a New Catalytic Converter for Natural Gas Fueled Engine

Kalam, M.A.; Masjuki, H.H.; Redzuan, Ma’rof; Mahlia, T.M.I.; Fuad, M. A.; Mohibah, M.; Halim, Ku; Ishak, Amirah Natasha; Khair, Magdi; Shahrir, A.; Yusof, Azita Laily

doi:10.4271/2008-01-1550

Cited by 7 publications

(3 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Using gasoline formulation may reduce CH4 conversion efficiency to less than 15% and cause poisoning and catalyst deactivation. Therefore, a TWC for gasoline vehicles is not suitable for the purification of natural gas engines [17,18]. Other than the catalyst and carrier, the catalytic performance of a TWC is also affected by operating conditions, such as the air-to-fuel ratio (AFR), engine speed, and engine load.…”

Section: Introductionmentioning

confidence: 99%

Effect of operating conditions and TWC parameters on emissions characteristics of a China-VI stoichiometric natural gas engine

Ren

Lou

et al. 2021

E3S Web Conf.

View full text Add to dashboard Cite

This study involved conducting an experimental and numerical investigation on the effects of the air-to-fuel ratio (AFR), engine speed, and engine load on the inlet gas component of a three-way catalyst (TWC) and on the effects of noble metal loading, noble metal ratio, and carrier pore density on the emission conversion efficiency. The results showed that AFR can significantly affect the raw emissions of NOx and THC, and better emission conversion efficiency of a TWC can be reached when AFR is controlled between 0.995 to 1. Compared with engine speed, engine load has a relatively small effect on exhaust temperature but greatly affects the flow velocity and NOx and THC emissions. Increasing the content of Pt in the catalyst can improve the THC conversion efficiency. For low Pt and Pd-Rh catalysts, the THC conversion effect is significantly deteriorated. The content of Rh affects the NOx conversion, and NOx conversion efficiency at high speeds is significantly reduced when Rh content is reduced. Higher carrier pore density can slightly improve the catalytic reaction rate and emission conversion efficiency at high engine speeds. However, high conversion efficiency can be maintained even after aging.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of operating conditions and TWC parameters on emissions characteristics of a China-VI stoichiometric natural gas engine

Ren

Lou

et al. 2021

E3S Web Conf.

View full text Add to dashboard Cite

show abstract

“…NAMI's studies as well as studies of other researchers note that in the process of converting of a diesel engine into a gas one with spark ignition quite high level of methane emissions, many times exceeding the existing standards. (Kalam et al, 2008, Kinnunen et al, 2009). Inertness of methane is explained by its high strength, low polarity of a Ñ-Í bond and rigidity of tetrahedral structure that obstructs activation of CH 4 molecule.…”

Section: The Main Partmentioning

confidence: 99%

The Creation of A Neutralization System for a High-efficiency Gas Engine

Luksho¹,

Kozlov²,

Kutenev³

et al. 2015

Biosci., Biotech. Res. Asia

View full text Add to dashboard Cite

show abstract

“…These pollutant gases influence to give bad effect to the human health and also surrounding environment [1]. Vehicles nowadays facing serious issues with the engines combustion gases that released high pollutant gases such as Unburned Hydrocarbon (HC), Caron Monoxide (CO) and Nitrogen oxide (NO x ) through the exhaust pipeline [2]. Most vehicles with gasoline fuelled were attached with three way catalyst in catalytic converter that gives an alternative way to reduce pollutant gaseous from the exhaust emission [3].…”

Section: Introductionmentioning

confidence: 99%

Emission Treatment towards Cold Start and Back Pressure in Internal Combustion Engine against Performance of Catalytic Converter: A Review

et al. 2016

View full text Add to dashboard Cite

Abstract. Nowadays, regulation for the vehicles emissions has becoming more stringent in order to reduce the effect of pollutant gases that was being released by the vehicles exhaust. The development of catalytic converter is to resolve the pollution emission aspect . There are lots of improvements done by the researchers towards improving catalytic converter, yet there are still key issues which give negative impact to the environment. One of the problems that are being concern by among of researchers is the cold-start and back pressure problems that usually occur in the composition of catalytic converter. Presented here is a review of cold-starts and back pressure problems together with several alternatives taken by not affecting the performance of vehicles engine and fuel consumption. The review also includes alternative system development and selection of materials to resolve these problems.

show abstract

Development and Test of a New Catalytic Converter for Natural Gas Fueled Engine

Cited by 7 publications

References 15 publications

Effect of operating conditions and TWC parameters on emissions characteristics of a China-VI stoichiometric natural gas engine

Effect of operating conditions and TWC parameters on emissions characteristics of a China-VI stoichiometric natural gas engine

The Creation of A Neutralization System for a High-efficiency Gas Engine

Emission Treatment towards Cold Start and Back Pressure in Internal Combustion Engine against Performance of Catalytic Converter: A Review

Contact Info

Product

Resources

About