Methane reforming in a small-scaled plasma reactor – Industrial application of a plasma process from the viewpoint of the environmental profile

Wang, Q Qi; Spasova, Berta; Hessel, Volker; Kolb, Gunther

doi:10.1016/j.cej.2014.09.091

Cited by 29 publications

(17 citation statements)

References 48 publications

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“…[1][2][3][4][5][6][7][8][9][10][11][12] Examples include decomposition of volatile organic compounds (VOCs) and hydrogenation reactions. [4][5][6][7][8][9]12,13] Nonthermal plasmas have also been widely used with endothermic processes such as reforming processes [14][15][16][17] leading to high H 2 and CO selectivities. [14][15][16] Sekine et al showed an enhancement in activity with increasing current on applying an electric field to the forward water-gas shift reaction when the catalyst was also heated to 423-873 K. [2] Thew ater-gas shift reaction has also been reported in close proximity of aplasma source,that is,post plasma catalysis,toenhance the hydrogen production following ap lasma activated ethanol reforming system.…”

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confidence: 99%

Non‐Thermal Plasma Activation of Gold‐Based Catalysts for Low‐Temperature Water–Gas Shift Catalysis

et al. 2017

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Non‐thermal plasma activation has been used to enable low‐temperature water‐gas shift over a Au/CeZrO4 catalyst. The activity obtained was comparable with that attained by heating the catalyst to 180 °C providing an opportunity for the hydrogen production to be obtained under conditions where the thermodynamic limitations are minimal. Using in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), structural changes associated with the gold nanoparticles in the catalyst have been observed which are not found under thermal activation indicating a weakening of the Au−CO bond and a change in the mechanism of deactivation.

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confidence: 99%

Non‐Thermal Plasma Activation of Gold‐Based Catalysts for Low‐Temperature Water–Gas Shift Catalysis

et al. 2017

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“…LCA studies assist the evaluation of processes and their ecological impact and, therefore, are often used as tools for decision making in the development of new processes. [25][26][27] However, it is worth mentioning that there are two major approaches towards the sustainability evaluation of process intensified systems developed in R&D and project-funded work. In the case of industrial-lead explorations, such as H2020, lab-scale proof of concepts are transferred to pilot scale and these experimental data -at relevant industrial site -are used for sustainability analysis.…”

Section: Introductionmentioning

confidence: 99%

Life cycle assessment of novel supercritical methyl propionate process with carbon dioxide feedstock

et al. 2017

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“…In this regard, plasma-based systems combine the opportunity of utilizing both electricity surplus as well as greenhouse gases, as feedstock, for the conversion process. Plasma reactor technology offers potential benefits, such as compactness, robustness and fast response time to temporal variations at the reactor inlet 7,8 .…”

Section: Introductionmentioning

confidence: 99%

A new methodology for the reduction of vibrational kinetics in non-equilibrium microwave plasma: application to CO₂ dissociation

et al. 2016

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Plasma reactor technologies have the potential to enable storage of green renewable electricity into fuels and chemicals. One of the major challenges for the implementation of these technologies is the energy efficiency. Empirical enhancement of plasma reactors performance has proven to be insufficient in this regard. Numerical models are becoming therefore essential to get insight into the process for optimization purposes. The chemistry in non-thermal plasmas is the most challenging and complex part of the model due to the large number of species and reactions involved. The most recent reaction kinetic model for carbon dioxide (CO 2 ) dissociation in non-thermal microwave plasma considers more than one hundred species and thousands of reactions. To enable the implementation of this model into multidimensional simulations, a new reduction methodology to simplify the state-tostate kinetic model is presented. It is based on four key elements; 1) all the asymmetric vibrational levels are lumped within a single group, or fictitious species, CO 2 *, 2) this group follows a nonequilibrium Treanor distribution, 3) an algebraic approximation is used to compute the vibrational temperature from the translational temperature based on the Landau-Teller formula and 4) weighted algebraic expressions are applied, instead of complex differential equations, to calculate the rates of the most influencing reactions; this decreases substantially the calculation time. Using this new approach, the dissociation and vibrational kinetics are captured in a reduced set of 44 reactions among 13 species. The predictions of the reduced kinetic model regarding the concentrations of the heavy species in the afterglow zone are in good agreement with those of the detailed model from which the former was derived. The methodology may also be applied to other state-to-state kinetic models in which interactions of vibrational levels have the largest share in the global set of reactions.

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Methane reforming in a small-scaled plasma reactor – Industrial application of a plasma process from the viewpoint of the environmental profile

Cited by 29 publications

References 48 publications

Non‐Thermal Plasma Activation of Gold‐Based Catalysts for Low‐Temperature Water–Gas Shift Catalysis

Non‐Thermal Plasma Activation of Gold‐Based Catalysts for Low‐Temperature Water–Gas Shift Catalysis

Life cycle assessment of novel supercritical methyl propionate process with carbon dioxide feedstock

A new methodology for the reduction of vibrational kinetics in non-equilibrium microwave plasma: application to CO₂ dissociation

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Methane reforming in a small-scaled plasma reactor – Industrial application of a plasma process from the viewpoint of the environmental profile

Cited by 29 publications

References 48 publications

Non‐Thermal Plasma Activation of Gold‐Based Catalysts for Low‐Temperature Water–Gas Shift Catalysis

Non‐Thermal Plasma Activation of Gold‐Based Catalysts for Low‐Temperature Water–Gas Shift Catalysis

Life cycle assessment of novel supercritical methyl propionate process with carbon dioxide feedstock

A new methodology for the reduction of vibrational kinetics in non-equilibrium microwave plasma: application to CO2 dissociation

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A new methodology for the reduction of vibrational kinetics in non-equilibrium microwave plasma: application to CO₂ dissociation