A Framework for Modular Modeling of the Diesel Engine Exhaust Gas Cleaning System

Åberg, Andreas; Hansen, Thomas Klint; Linde, Kasper; Nielsen, Anders Krebs; Damborg, Rune; Widd, Anders; Abildskov, Jens; Jensen, Anker Degn; Huusom, Jakob Kjøbsted

doi:10.1016/b978-0-444-63578-5.50071-2

Cited by 5 publications

(1 citation statement)

References 9 publications

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“…They performed multiple experiments capturing the main features for the SCR mechanism based on which a detailed kinetic model was developed. Åberg et al , proposed a methodology for parameter estimation for an SCR catalyst model using data from gas flow reactors. Their method is sequential, evaluating the impact on parameter fitting at each step and defining suitable simplifications for obtaining fast and reliable models.…”

Section: Introductionmentioning

confidence: 99%

Characterization Method for Gas Flow Reactor Experiments—NH₃ Adsorption on Vanadium-Based SCR Catalysts

Suarez-Corredor

Bäbler

Olsson

et al. 2021

Ind. Eng. Chem. Res.

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In this study, NH 3 adsorption isotherms for a commercial vanadium-based SCR catalyst coated on a monolith substrate were obtained using a gas flow reactor over a wide range of parameters which have not been performed before in a single study. The isotherms were obtained under different conditions, where adsorption temperature, NH 3 concentration, water concentration, washcoat loading, and catalyst oxidation state were varied. For this purpose, a systematic data processing method was developed, which characterizes the dispersion and delay effects in the experimental setup using a residence time distribution model, and artifacts such as NH 3 adsorbed in the experimental setup and uncertainties in the washcoat loading were removed. As a result, data from different catalyst samples were integrated, and adsorption isotherms with low data spread and well-defined regions were obtained. This allows the identification of the complex nature of the catalyst and dynamics, where multiple types of adsorption sites are present. For instance, the oxidized catalyst has 50% higher NH 3 storage capacity compared to the reduced state of the sample. Moreover, water reduces the NH 3 storage capacity at high concentrations (5.0%), whereas at low concentration (0.5%), water increases the NH 3 adsorption capacity for an oxidized catalyst. The proposed data processing method can be extended for the analysis of further phenomena in catalysts studied using gas flow reactors, complementing current methods and providing information for models with extended validity and lower parameter correlations.

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Section: Introductionmentioning

confidence: 99%

Characterization Method for Gas Flow Reactor Experiments—NH₃ Adsorption on Vanadium-Based SCR Catalysts

Suarez-Corredor

Bäbler

Olsson

et al. 2021

Ind. Eng. Chem. Res.

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Conventional systems for exhaust gas cleaning and carbon capture and sequestration

Ghasemzadeh

Tilebon

Basile

2020

Current Trends and Future Developments on (Bio-) Membranes

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A Comparison of Ethanol, Methanol, and Butanol Blending with Gasoline and Its Effect on Engine Performance and Emissions Using Engine Simulation

Iliev

2021

Processes

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Air pollution, especially in large cities around the world, is associated with serious problems both with people’s health and the environment. Over the past few years, there has been a particularly intensive demand for alternatives to fossil fuels, because when they are burned, substances that pollute the environment are released. In addition to the smoke from fuels burned for heating and harmful emissions that industrial installations release, the exhaust emissions of vehicles create a large share of the fossil fuel pollution. Alternative fuels, known as non-conventional and advanced fuels, are derived from resources other than fossil fuels. Because alcoholic fuels have several physical and propellant properties similar to those of gasoline, they can be considered as one of the alternative fuels. Alcoholic fuels or alcohol-blended fuels may be used in gasoline engines to reduce exhaust emissions. This study aimed to develop a gasoline engine model to predict the influence of different types of alcohol-blended fuels on performance and emissions. For the purpose of this study, the AVL Boost software was used to analyse characteristics of the gasoline engine when operating with different mixtures of ethanol, methanol, butanol, and gasoline (by volume). Results obtained from different fuel blends showed that when alcohol blends were used, brake power decreased and the brake specific fuel consumption increased compared to when using gasoline, and CO and HC concentrations decreased as the fuel blends percentage increased.

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A Framework for Modular Modeling of the Diesel Engine Exhaust Gas Cleaning System

Cited by 5 publications

References 9 publications

Characterization Method for Gas Flow Reactor Experiments—NH₃ Adsorption on Vanadium-Based SCR Catalysts

Characterization Method for Gas Flow Reactor Experiments—NH₃ Adsorption on Vanadium-Based SCR Catalysts

Conventional systems for exhaust gas cleaning and carbon capture and sequestration

A Comparison of Ethanol, Methanol, and Butanol Blending with Gasoline and Its Effect on Engine Performance and Emissions Using Engine Simulation

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A Framework for Modular Modeling of the Diesel Engine Exhaust Gas Cleaning System

Cited by 5 publications

References 9 publications

Characterization Method for Gas Flow Reactor Experiments—NH3 Adsorption on Vanadium-Based SCR Catalysts

Characterization Method for Gas Flow Reactor Experiments—NH3 Adsorption on Vanadium-Based SCR Catalysts

Conventional systems for exhaust gas cleaning and carbon capture and sequestration

A Comparison of Ethanol, Methanol, and Butanol Blending with Gasoline and Its Effect on Engine Performance and Emissions Using Engine Simulation

Contact Info

Product

Resources

About

Characterization Method for Gas Flow Reactor Experiments—NH₃ Adsorption on Vanadium-Based SCR Catalysts

Characterization Method for Gas Flow Reactor Experiments—NH₃ Adsorption on Vanadium-Based SCR Catalysts