Application of atmospheric pressure microwave plasma source for hydrogen production from ethanol

Hrycak, Bartosz; Czylkowski, Dariusz; Miotk, Robert; Dors, M.; Jasiński, M.; Mizeraczyk, J.

doi:10.1016/j.ijhydene.2014.02.160

Cited by 51 publications

(30 citation statements)

References 19 publications

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“…It is worth noting that all these parameters were attained when C 2 H 5 OH mass flow rate was relatively high [2.7 C 2 H 5 OH kg/h]. These record results are better than those obtained in our investigations presented in [18][19][20], in which different methods of C 2 H 5 OH supply to the microwave plasma (in the form of either a swirl or axial flow) were employed (the comparison only applies to those cases when the working gas was N 2 and the C 2 H 5 OH vapour was produced in the induction heating vapourizer). When the C 2 H 5 OH vapour was produced in the bubble vapourizer [18] the hydrogen production rate (202 NL(H 2 )/h) the energy yield (67 NL(H 2 )/kWh) and the hydrogen volume concentration in the outlet gas (5%) where much lower than those attained using the induction heating vapourizer due to a lower C 2 H 5 OH mass flow rate (at most 0.4 kg/h) in the former case.…”

Section: Resultscontrasting

confidence: 70%

“…A similar MPS was used in our earlier investigations of ethanol reforming by microwave plasma [18][19][20]. However, in contrast to our earlier investigations, in which ethanol vapour was introduced into the microwave plasma region either as a swirl flow [18,19] or an axial flow [20], in this experiment we injected ethanol vapour directly into the plasma flame, behind the plasma generation region (inside the waveguide).…”

Section: Experimental Procedures and Setupmentioning

confidence: 99%

“…1. Schematic drawing of the MPS with C2H5OH vapour swirl supply system (bubble vapourizer for forming the mixture of C2H5OH vapour and N2) [18].…”

Section: Introductionmentioning

confidence: 99%

“…In our earlier investigations of ethanol reforming, ethanol vapour was introduced into the microwave plasma region either as a swirl flow - Figures 1 and 2 [18,19] or an axial flow - Figure 3 [20]. In both cases nitrogen was supplied in the form of a swirl flow.…”

Section: Introductionmentioning

confidence: 99%

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Hydrogen production by conversion of ethanol injected into a microwave plasma

et al. 2017

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Abstract. Reforming of gaseous and liquid hydrocarbon compounds into hydrogen is of high interest. In this paper we present a microwave (2.45 GHz) plasma-based method for hydrogen production by conversion of ethanol (C2H5OH) in the thermal reforming process in nitrogen plasma. In contrast to our earlier investigations, in which C2H5OH vapour was supplied into the microwave plasma region either in the form of a swirl or axial flow, in this experiment we injected C2H5OH vapour directly into the nitrogen microwave plasma flame, behind the microwave plasma generation region. The experimental results were as follows. At an absorbed microwave power of 5 kW, N2 (plasma-generating gas) swirl flow rate of 2700 NL(N2)/h and C2H5OH mass flow rate of 2.7 kg(C2H5OH)/h the hydrogen production rate was 1016 NL(H2)/h, which corresponds to the energy yield of hydrogen production 203 NL(H2)/kWh. After the C2H5OH conversion the outlet gas contained 27.6% (vol.) H2, 10.2% CO, 0.2% CO2, 4.8% CH4, 4.3% C2H2, 3.7% C2H4 and 3.7% C2H6. These results are comparable to those obtained in our earlier investigations, in which different methods of C2H5OH vapour supply to the microwave plasma generation region were employed.

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Section: Resultscontrasting

confidence: 70%

Section: Experimental Procedures and Setupmentioning

confidence: 99%

“…1. Schematic drawing of the MPS with C2H5OH vapour swirl supply system (bubble vapourizer for forming the mixture of C2H5OH vapour and N2) [18].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hydrogen production by conversion of ethanol injected into a microwave plasma

et al. 2017

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“…Processing organic and non-organic materials to produce hydrogen gas is a challenging task and has been studied by several researchers [1][2][3]. The main reason that hydrogen used as fuel is water could be its source, and hydrogen has enormous potential energy per unit mass than any other fuel [4,5].…”

mentioning

confidence: 99%

A Novel Method for Producing Hydrogen from a Hydrocarbon Liquid Using Microwave In-liquid Plasma

Mochtar¹,

Nomura²,

Mukasa³

et al. 2016

JEPE

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Abstract:The in-liquid plasma method is a technology in which plasma of several thousand degrees Kelvin is generated within bubbles in a liquid. The purpose of this study is to enhance the hydrogen production rate from waste oils by using in-liquid plasma. Two types of microwave in-liquid plasma apparatus are adopted for hydrogen production. One is a conventional MW (microwave) oven, the other is a microwave generator with a waveguide to apply the in-liquid plasma steam reforming method in n-dodecane. The produced gas is 58%-90% hydrogen in these methods. The hydrogen production rate is improved by stabilization of the bubble growth. The gas production rate by plasma feeding steam in n-dodecane is 1.4 times higher than that without feeding steam.

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Microwave atmospheric pressure plasma jet: A review

Rath,

Kar

2024

Contrib. Plasma Phys

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Considerable interest has emerged in atmospheric pressure discharges within the microwave frequency range over the past decade, driven by the growing potential applications such as material processing, CO2 dissociation, waste treatment, hydrogen production, water treatment, and so forth. This review delves into the diverse types of atmospheric pressure plasma jets (APPJs) operated at microwave frequencies. The analysis integrates insights from an overall review that encapsulates the different types of geometry, characterizations, modeling, and various applications of microwave atmospheric plasma jets (MW‐APPJs). This paper will contribute to a comprehensive understanding of microwave plasma generated in the ambient atmosphere. The fundamental insights into these discharges are emerging, but there are still numerous unexplained phenomena in these inherently complex plasmas that need to be studied. The properties of these MW‐APPJs encompass a higher range of electron densities (ne), gas temperatures (Tg), electron temperatures (Te), and reactive oxygen and nitrogen species (RONS). This review provides an overview of the key underlying processes crucial for generating and stabilizing MW‐APPJs. Additionally, the unique physical and chemical properties of these discharges are summarized. In the initial section, we aim to introduce the primary scientific characterizations of different types of waveguide‐based and non‐waveguide‐based MW‐APPJs. The subsequent part focuses on the diverse modeling approaches for different MW‐APPJs and the outcomes derived from these models. The final section describes the potential applications of MW‐APPJs in various domains.

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Application of atmospheric pressure microwave plasma source for hydrogen production from ethanol

Cited by 51 publications

References 19 publications

Hydrogen production by conversion of ethanol injected into a microwave plasma

Hydrogen production by conversion of ethanol injected into a microwave plasma

A Novel Method for Producing Hydrogen from a Hydrocarbon Liquid Using Microwave In-liquid Plasma

Microwave atmospheric pressure plasma jet: A review

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