Solar thermal production of zinc : Program strategy and status of research

Weidenkaff, Anke; Brack, Max; Möller, Stephan; Palumbo, Robert; Steinfeld, Aldo

doi:10.1051/jp4:1999348

Cited by 11 publications

(10 citation statements)

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“…The idea of a volumetric gas particle solar receiver−reactor has been examined for more than two decades. − The reactor concept is based on direct solar irradiation of either “suspension of reacting particles in a gas stream” or “falling particles”, providing efficient heat transfer directly to a large mass of reacting particles. Fine metal oxide particles have a larger surface area than metal oxide devices such as a metal oxide coated honeycomb or foam.…”

Section: 24 Solar Reactorsmentioning

confidence: 99%

Thermochemical Cycles for High-Temperature Solar Hydrogen Production

2007

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Section: 24 Solar Reactorsmentioning

confidence: 99%

Thermochemical Cycles for High-Temperature Solar Hydrogen Production

2007

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“…Hydrogen is produced during the oxidation step.

The Zn/ZnO system has been studied extensively, due to its high solar to chemical efficiency, potentially exceeding 50%, or 29%, without recovery of product heat. With δ G approaching zero at 2350 K, ZnO starts decomposing into oxygen and gaseous zinc above 2000 K.

…”

Section: Thermochemical Processesmentioning

confidence: 99%

Integrated solar thermochemical cycles for energy storage and fuel production

Petrasch

Klausner²

2012

WIREs Energy & Environment

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Integrated solar thermochemical cycles comprise a range of promising novel process technologies that use concentrated solar energy to drive endothermic chemical reactions at elevated temperatures. The most promising application is the production of carbon-neutral fuels, particularly via single or multistep water and CO 2 splitting or via the solar thermochemical upgrading of carbonaceous fuels such as biomass, waste, or oil residues. Furthermore, intermediate storage of solar energy in reversible reactions, the so-called solar thermochemical heat pipes, shows great promise to replace latent heat storage for concentrating solar power generation. Potential niche applications are material processing and material testing. Widespread deployment of solar thermochemical cycles hinges on the development of several key technologies: (i) reaction systems and catalysts able to endure tens of thousands of conversion cycles without significant degradation, (ii) reactors and heat recuperation systems that fully exploit the theoretical potential of solar thermochemical cycles, (iii) industrial-scale reactor technologies, and (iv) process control technologies that address the inherently transient nature of solar power. C 2012 John Wiley & Sons, Ltd.

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“…1(a)). A solar reactors of this type have been previously constructed and demonstrated using a gas-particle vortex flow confined to a solar cavity receiver with a window [18]. Solar chemical reactors, such as a solar reformer, have recently been proposed for combination with newly developed solar reflective towers or beam-down optics [19,20].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the redox material loaded in the chemical reactor must be directly irradiated by a high flux of concentrated solar radiation. With respect to this requirement, some solar reactor concepts that realize direct solar radiation have been proposed or demonstrated for two-step water-splitting by redox materials [14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%