Model predictive control for ethanol steam reformers with membrane separation

Serra, Maria; Ocampo‐Martínez, Carlos; Li, Mingming; Llorca, Jordi

doi:10.1016/j.ijhydene.2016.10.110

Cited by 27 publications

(22 citation statements)

References 28 publications

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“…On the other hand, the use of different catalysts leads to different reaction paths so that the catalyst is a direct process variable and its composition (active phase, support), precursors and method of preparation are considered indirect variables but essentially important. Alternatives for purification of the reformate for the removal of CO and feed in PEMFC have been proposed by several researchers [3][4][5][6][7][8][9][10]. According to Rosseti et al [5,6], there are wellestablished routes, such as high-and low-temperature water-gas shift (WGS) and methanation, which can be integrated into the hydrogen production unit.…”

Section: Hydrogen Production From Ethanol-steam Reformationmentioning

confidence: 99%

“…Another alternative widely evaluated in the available literature [9,10] considers the use of reactive systems of hydrogen-permeable catalytic membranes, which can lead to the production of highly pure hydrogen and therefore enable direct integration between the reformer unit and PEMFC. Koch et al [11] studied the ethanol-steam reforming process aiming to feed a PEM fuel cell to produce clean energy.…”

Section: Hydrogen Production From Ethanol-steam Reformationmentioning

confidence: 99%

See 1 more Smart Citation

Production of Hydrogen and their Use in Proton Exchange Membrane Fuel Cells

Colmati¹,

Alonso²,

Martins³

et al. 2018

Advances in Hydrogen Generation Technologies

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This work will show an overview of the hydrogen production from ethanol by steam reforming method, using distinct catalysts, resulting in low carbon monoxide content in H2 produced; a thermodynamic analysis of reforming employing entropy maximization, the ideal condition for ethanol, and other steam reforming reactions, the state of the art of steam reforming catalysts for H2 production with low CO content. Moreover, in the second part, there will be an overview of the use of hydrogen in a proton exchange membrane fuel cell (PEMFC), the fuel cell operational conditions, a thermodynamic analysis of PEMFC, the catalysts used in the electrodes of the fuel cell, consequences of the CO presence in the hydrogen fuel feed in PEMFC, and the operation conditions for maximum output power density.

show abstract

Section: Hydrogen Production From Ethanol-steam Reformationmentioning

confidence: 99%

Section: Hydrogen Production From Ethanol-steam Reformationmentioning

confidence: 99%

Production of Hydrogen and their Use in Proton Exchange Membrane Fuel Cells

Colmati¹,

Alonso²,

Martins³

et al. 2018

Advances in Hydrogen Generation Technologies

View full text Add to dashboard Cite

show abstract

“…Hedayati et al [11] conducted dynamic simulation of ethanol steam reforming for hydrogen production in a catalytic membrane reactor. Serra et al [12] developed a nonlinear dynamic model and conducted a static-dynamic analysis for the ethanol steam reforming with membrane separation process. Roychowdhury et al [13] modeled the heat transfer of the ethanol steam-reforming process in a microchannel reactor, which found that the conversion rate can be reached as high as 100% when flue-gas flowing supplies the necessary heat.…”

Section: Introductionmentioning

confidence: 99%

Process Modeling, Optimization, and Heat Integration of Ethanol Reforming Process for Syngas Production with High H2/CO Ratio

Xiang

Yuan

2019

Processes

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The process modeling, parameter optimization, and heat integration of reforming ethanol to hydrogen is conducted in this paper. Modeling results show that the optimum reaction pressure for ethanol steam reforming is 1 bar. When the 7.4:1 is selected as a moderate water/ethanol ratio, the optimum reaction temperature is about 755 °C. As for heat integration, the composite curve and optimum heat-exchange network are given out by pinch technology, of which adding a heat exchanger can reduce 10,833 kW of heating duty and 10,833 kW of cooling duty and make the energy saving reach about 57.4%. Another two heat-integration plans are proposed for the ethanol steam-reforming process, to further decrease the high-level heat duty. Finally, similar heat integration was also carried out for the oxidative steam reforming, and the system is autothermal when the oxygen/ethanol is about 0.5:1 on the basis of above steam-reforming process, while the hydrogen molar purity is decreased from 69% to 66%.

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“…The advantages of bioethanol, compared with other fuels, are high hydrogen content, availability, low toxicity and safe storage and handling. Bioethanol reforming for hydrogen production to feed a PEMFC is reported in several works [9][10][11]. In addition, bioethanol can be produced by fermentation of biomass sources such as agricultural residues, forestry, livestock and urban organic material [12,13].…”

Section: Introductionmentioning

confidence: 99%

Energy Management Strategy for a Bioethanol Isolated Hybrid System: Simulations and Experiments

et al. 2018

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Renewable energy sources have significant advantages both from the environmental and the economic point of view. Additionally, renewable energy sources can contribute significantly to the development of isolated areas that currently have no connection to the electricity supply network. In order to make efficient use of these energy sources, it is necessary to develop appropriate energy management strategies. This work presents an energy management strategy for an isolated hybrid renewable energy system with hydrogen production from bioethanol reforming. The system is based on wind-solar energy, batteries and a bioethanol reformer, which produces hydrogen to feed a fuel cell system. Bioethanol can contribute to the development of isolated areas with surplus agricultural production, which can be used to produce bioethanol. The energy management strategy takes the form of a state machine and tries to maximize autonomy time while minimizing recharging time. The proposed rule-based strategy has been validated both by simulation and experimentally in a scale laboratory station. Both tests have shown the viability of the proposed strategy complying with the specifications imposed and a good agreement between experimental and simulation results.

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Model predictive control for ethanol steam reformers with membrane separation

Cited by 27 publications

References 28 publications

Production of Hydrogen and their Use in Proton Exchange Membrane Fuel Cells

Production of Hydrogen and their Use in Proton Exchange Membrane Fuel Cells

Process Modeling, Optimization, and Heat Integration of Ethanol Reforming Process for Syngas Production with High H2/CO Ratio

Energy Management Strategy for a Bioethanol Isolated Hybrid System: Simulations and Experiments

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