Modeling and optimization of the combined carbon dioxide reforming and partial oxidation of natural gas

Larentis, Ariane Leites; Resende, Neuman Solange de; Salim, Vera Maria Martins; Pinto, José Carlos

doi:10.1016/s0926-860x(01)00533-6

Cited by 79 publications

(40 citation statements)

References 26 publications

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“…The fi rst two reactions of partial oxidation (POX) and total oxidation (TOX) were discussed in details in paper 8 , while the other two reactions of hydrogen oxidation (HOX) and carbon monoxide oxidation (COX) were presented Unauthenticated Download Date | 5/8/18 11:17 AM in paper 9 . A list of reactions used in the CPO x reformer model is shown in Table 1.…”

Section: Modelling Approachmentioning

confidence: 99%

Model development of integrated CPOx reformer and SOFC stack system

Pianko‐Oprych

Hosseini

Jaworski

2016

Polish Journal of Chemical Technology

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The main purpose of this study was to develop a mathematical model, in a steady state and dynamic mode, of a Catalytic Partial Oxidation (CPO x ) reformer -Solid Oxide Fuel Cell (SOFC) stack integrated system in order to assess the system performance. Mass balance equations were written for each component in the system together with energy equation and implemented into the MATLAB Simulink simulation tool. Temperature, gas concentrations, pressure and current density were computed in the steady-state mode and validated against experimental data. The calculated I-V curve matched well the experimental one. In the dynamic modelling, several different conditions including step changes in fuel fl ow rates, stack voltage as well as temperature values were applied to estimate the system response against the load variations. Results provide valuable insight into the operating conditions that have to be achieved to ensure effi cient CPO x performance for fuel processing for the SOFC stack applications.

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Section: Modelling Approachmentioning

confidence: 99%

Model development of integrated CPOx reformer and SOFC stack system

Pianko‐Oprych

Hosseini

Jaworski

2016

Polish Journal of Chemical Technology

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“…The mixture is then passed through the catalyst bed inside the catalytic partial oxidizer (CPOX) where CH 4 reacts with oxygen to produce H 2 . There are two main chemical reactions taking place in the CPOX: partial oxidation (POX) and total oxidation (TOX) [29], [16]:…”

Section: Overview Of the Fuel Processing System (Fps)mentioning

confidence: 99%

Control-oriented model of fuel processor for hydrogen generation in fuel cell applications

Pukrushpan

Stefanopoulou

Varigonda³

et al. 2006

Control Engineering Practice

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A control-oriented dynamic model of a catalytic partial oxidation-based fuel processor is developed using physicsbased principles. The Fuel Processor System (FPS) converts a hydrocarbon fuel to a hydrogen (H 2 ) rich mixture that is directly feed to the Proton Exchange Membrane Fuel Cell Stack (PEM-FCS). Cost and performance requirements of the total powerplant typically lead to highly integrated designs and stringent control objectives. Physics based component models are extremely useful in understanding the system level interactions, implications on system performance and in model-based controller design. The model can be used in a multivariable analysis to determine characteristics of the system that might limit performance of a controller or a control design.In this paper, control theoretic tools such as the relative gain array (RGA) and the observability gramian are employed to guide the control design for a FPS combined with a PEM-FC. For example this simple multivariable analysis suggests that a decrease in HDS volume is critical for the hydrogen starvation control. Moreover, RGA analysis shows different level of coupling between the system dynamics at different power levels. Finally, the observability analysis can help in assessing the relative cost-benefit ratio in adding extra sensors in the system.

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“…The mixture is then passed through the catalyst bed inside the catalytic partial oxidizer (CPOX) where CH4 reacts with oxygen to produce H2. There are two main chemical reactions taking place in the CPOX: partial oxidation (POX) and total oxidation (TOX) [5,12]:…”

Section: Introductionmentioning

confidence: 99%

Control of natural gas catalytic partial oxidation for hydrogen generation in fuel cell applications

Pukrushpan

Stefanopoulou

Varigonda³

et al. 2005

IEEE Trans. Contr. Syst. Technol.

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A fuel processor that reforms natural gas to hydrogen-rich mixture to feed the anode field of fuel cell stack is considered. The first reactor that generates the majority of the hydrogen in the fuel processor is based on catalytic partial oxidation of the methane in the natural gas. We present a model-based control analysis and design for a fuel processing system that manages natural gas flow and humidified atmospheric air flow in order to regulate (i) the amount of hydrogen in the fuel cell anode and (ii) the temperature of the catalytic partial oxidation reactor during transient power demands from the fuel cell.Linear feedback analysis and design is used to identify the limitation of a decentralized controller and the benefit of a multivariable controller. Further analysis unveils the critical controller cross-coupling term that contributes to the superior performance of the multivariable controller.

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Modeling and optimization of the combined carbon dioxide reforming and partial oxidation of natural gas

Cited by 79 publications

References 26 publications

Model development of integrated CPOx reformer and SOFC stack system

Model development of integrated CPOx reformer and SOFC stack system

Control-oriented model of fuel processor for hydrogen generation in fuel cell applications

Control of natural gas catalytic partial oxidation for hydrogen generation in fuel cell applications

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