Thermal ZnO dissociation in a rapid aerosol reactor as part of a solar hydrogen production cycle

Perkins, Christopher

doi:10.1016/j.ijhydene.2007.10.021

Cited by 94 publications

(67 citation statements)

References 21 publications

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“…As reaction kinetics will be hindered by the heating of a flat layer, Perkins et al present a reactor concept based on a flowing aerosol for enhanced heat and mass transfer [84]. Experiments substantiated this design with net ZnO conversions of 6-17%, the highest conversions yet reported in literature.…”

Section: Possible Reactor Configurationsmentioning

confidence: 98%

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Functioning devices for solar to fuel conversion

Mul¹,

Schacht²,

Swaaij³

et al. 2012

Chemical Engineering and Processing: Process Intensification

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a b s t r a c tThis paper provides a perspective on the technologies capable of converting solar energy, CO 2 and H 2 O into an easy to use fuel. The paper addresses bio-based approaches, but mainly focuses on (i) the combination of photovoltaic (PV) devices and electrocatalysis, (ii) single unit operation by photocatalytic conversion, and (iii) solar thermal conversion. Each option is described in a general manner, including a brief evaluation of the advantages and disadvantages. Also suggestions for future research endeavours are given. Based on the used literature data, for electrocatalytic and photocatalytic technologies, dramatic improvements should be made in material optimization, as well as reactor design and operation. Large efficiency gains are necessary to enable use of these technologies in practice. Solar thermal conversion is more mature, and requires specific optimization in processing, as will be discussed.

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Section: Possible Reactor Configurationsmentioning

confidence: 98%

“…The hydrolysis proceeds at temperatures as low as (472-773 K). At the same time the thermal dissociation of ZnO requires 1872-2273 K [84]. At this temperature the zinc formed is in gaseous state.…”

Section: Possible Reactor Configurationsmentioning

confidence: 99%

Functioning devices for solar to fuel conversion

Mul¹,

Schacht²,

Swaaij³

et al. 2012

Chemical Engineering and Processing: Process Intensification

View full text Add to dashboard Cite

show abstract

“…One alternative is to employ a flow through reactor utilizing indirect solar radiation with nano zinc oxide particles (Perkins 2008). Reactor tubes are heated by concentrated solar radiation.…”

Section: Solar Reactor Designmentioning

confidence: 99%

High Efficiency Generation of Hydrogen Fuels Using Solar Thermochemical Splitting of Water

Heske¹,

Moujaes²,

Weimer³

et al. 2011

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“…Perkins et al reported the O 2 measurement, which is the only clear indicator of the ongoing thermal ZnO dissociation. The maximum net Zn yield was 17 % [41]. However, to-date there is no report in the literature which claims continuous dissociation of ZnO monitored by product gas analysis for more than few minutes.…”

Section: Introductionmentioning

confidence: 97%

“…Recently, the solar thermal ZnO dissociation was demonstrated by Lédé et al [39] in a quartz vessel containing sintered ZnO, by Haueter et al [40] in a rotating cavity reactor type, and by Perkins et al [41] in an aerosol reactor type. Perkins et al reported the O 2 measurement, which is the only clear indicator of the ongoing thermal ZnO dissociation.…”

Section: Introductionmentioning

confidence: 99%

Thermochemical hydrogen production from water using reducible oxide materials: a critical review

D’Souza

2013

Mater Renew Sustain Energy

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This review mainly focuses on summarizing the different metal oxide systems utilized for water-splitting reaction using concentrated solar energy. Only two or three cyclic redox processes are considered. Particle size effect on redox reactions and economic aspect of hydrogen production via concentrated solar energy are also briefly discussed. Among various metal oxides system CeO 2 system is emerging as a promising candidate and researchers have demonstrated workability of this system in the solar cavity-receiver reactor for over 500 cycles. The highest solar thermal process efficiency obtained so far is about 0.4 %, which needs to be increased for real commercial applications. Among traditionally studied oxides, thin-film ferrites looks more promising and could meet US Department of energy target of $2.42/kg H 2 by 2025. The cost is mainly driven by high heliostat cost which needs to reduced significantly for economic feasibility. Overall, more work needs to be done in terms of redox material engineering, reactor technology, heliostat cost reduction and gas separation technologies before commercialization of this technology.

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Thermal ZnO dissociation in a rapid aerosol reactor as part of a solar hydrogen production cycle

Cited by 94 publications

References 21 publications

Functioning devices for solar to fuel conversion

Functioning devices for solar to fuel conversion

High Efficiency Generation of Hydrogen Fuels Using Solar Thermochemical Splitting of Water

Thermochemical hydrogen production from water using reducible oxide materials: a critical review

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