Numerical Studies of Methane Catalytic Combustion Inside a Monolith Honeycomb Reactor Using Multi-Step Surface Reactions

Chou, C.-P.; Chen, Jyh-Yuan; Evans, Gregory H.; Winters, W.S.

doi:10.1080/00102200008952116

Cited by 44 publications

(33 citation statements)

References 15 publications

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“…The surface mechanism is taken from the literature for methane combustion on platinum [Chou, et al, 2000], which has shown good agreement with literature data. For methane combustion, palladium currently offers the highest activity, but hydrogen and CO are sufficiently reactive over platinum to warrant its use.…”

Section: Model Descriptionmentioning

confidence: 75%

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A Computational Workbench Environment for Virtual Power Plant Simulation

Bockelie¹,

Swensen²,

Denison³

et al. 2004

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In this report is described the work effort to develop and demonstrate a software framework to support advanced process simulations to evaluate the performance of advanced power systems. Integrated into the framework are a broad range of models, analysis tools, and visualization methods that can be used for the plant evaluation. The framework provides a tightly integrated problem-solving environment, with plug-and-play functionality, and includes a hierarchy of models, ranging from fast running process models to detailed reacting CFD models. The framework places no inherent limitations on the type of physics that can be modeled, numerical techniques, or programming languages used to implement the equipment models, or the type or amount of data that can be exchanged between models. Tools are provided to analyze simulation results at multiple levels of detail, ranging from simple tabular outputs to advanced solution visualization methods. All models and tools communicate in a seamless manner. The framework can be coupled to other software frameworks that provide different modeling capabilities.Three software frameworks were developed during the course of the project. The first framework focused on simulating the performance of the DOE Low Emissions Boiler System Proof of Concept facility, an advanced pulverized-coal combustion-based power plant. The second framework targeted simulating the performance of an Integrated coal Gasification Combined Cycle -Fuel Cell Turbine (IGCC-FCT) plant configuration. The coal gasifier models included both CFD and process models for the commercially dominant systems. Interfacing models to the framework was performed using VES-Open, and tests were performed to demonstrate interfacing CAPE-Open compliant models to the framework. The IGCC-FCT framework was subsequently extended to support Virtual Engineering concepts in which plant configurations can be constructed and interrogated in a three-dimensional, user-centered, interactive, immersive environment. The Virtual Engineering Framework (VEF), in effect a prototype framework, was developed through close collaboration with NETL supported research teams from Iowa State University Virtual Reality Applications Center (ISU-VRAC) and Carnegie Mellon University (CMU). The VEF is open source, compatible across systems ranging from inexpensive desktop PCs to large-scale, immersive facilities and provides support for heterogeneous distributed computing of plant simulations. The ability to compute plant economics through an interface that coupled the CMU IECM tool to the VEF was demonstrated, and the ability to couple the VEF to Aspen Plus, a commercial flowsheet modeling tool, was demonstrated. Models were interfaced to the framework using VES-Open. Tests were performed for interfacing CAPE-Open-compliant models to the framework. Where available, the developed models and plant simulations have been benchmarked against data from the open literature. The VEF has been installed at NETL.The VEF provides simulation capabilities not availab...

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Section: Model Descriptionmentioning

confidence: 75%

“…A review of the literature [Bond et al, 1996], [Chou et al, 2000] revealed that the majority of existing models were limited to modeling heterogeneous reactions within a single channel of a monolith for combustion of methane. Figure 1.3.54 provides a schematic showing the processes occurring in a single monolith channel.…”

Section: Model Descriptionmentioning

confidence: 99%

A Computational Workbench Environment for Virtual Power Plant Simulation

Bockelie¹,

Swensen²,

Denison³

et al. 2004

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“…[23,24] Porous cordierite (2MgO⋅2Al 2 O 3 ⋅5SiO 2 ) is typically used to fabricate the monoliths due to its moderate strength (20-90 MPa), high thermal stability, resistance to chemical corrosion, and cost effectiveness. Samples of cordierite honeycomb monoliths (Johnson Matthey, London, UK) were cut to 12.7 mm in thickness and approximately 22 mm diameter to fit in a quartz reactor tube.…”

Section: Methodsmentioning

confidence: 99%

Revolutionary systems for catalytic combustion and diesel catalytic particulate traps.

Stuecker¹,

Witze²,

Ferrizz³

et al. 2004

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“…13). The arched profile of the formed C O c a n b e e v i d e n c e t h a t C O i s t h e i n t e r m ediate in the multi-step surface reactions mechanism proposed by Deutschmann and coworkers Quiceno et al, 2000), Chou et al (Chou et al, 2000) and Aghalayam (Aghalayam et al, 2003) for the oxidation of lean methane-air mixtures. …”

Section: Comparison Of Simulated and Experimental Datamentioning

confidence: 99%

“…On the other hand, there is strong evidence that the catalyst surface affects the gas-phase chemistry (Sidwell et al, 2003;Deutschmann et al, 2000;Chou et al, 2000;Aghalayam et al, 2003;Quiceno et al, 2000). The hexaaluminate catalyst surface is assumed to act as a sink for methyl radicals, suppressing gas-phase reactions (Sidwell et al, 2003).…”

Section: Comparison Of Simulated and Experimental Datamentioning

confidence: 99%