Solar reactors

Abanades, S. and Flamant, G., Production of hydrogen by thermal methane splitting in a nozzle-type laboratory-scale solar reactor, Int. J. Hydrogen Energ., 30,843, 2005. 

Solar high-temperature thermochemical High temperature thermochemical cycle materials High temperature solar reactor materials... 

The use of solar energy in chemical processing has also been investigated. Studies describe, for example, the cycloaddition reaction of a carbonyl compound to an olefin carried out in a solar furnace reactor (91) or oxidation of 4-chlorophenol in a solar-powered liber-optic cable reactor (92). The concept of using solar light for the synthesis of e-caprolactam was evaluated, and it was shown that the return on investment was better than for the conventional technology (93). Solar reactors can also be used advantageously in water treatment plants (94). 

Correspondingly, many toxic organic compounds (particularly halo-aromatics) have been shown to be oxidizable to innocuous compounds at Ti02 photoanodes with a counter-electrode of platinum (Bard, 1980 Fox, 1986). In 1980 Guruswamy suggested a design for a colloidal solar reactor for wastes that worked on photoelectro-chemical principles. 

Rossetti GFI, Albizzati ED, Alfano OM. Modeling of a flat-plate solar reactor. Degradation of formic acid by the photo-Fenton reaction. Solar Energy 2004 77 461-70. 

Fig. 3. Example of a solar reactor for direct thermochemical water splitting and solar hydrogen generation. Reprinted with permission from Ref. 1. Copyright (1998) International Journal of...

Concentrating and non-concentrating solar reactors Solar-TiOj-UV/VIS Pilot Zhang et al. (1994)... 

Figure 10 Photocatalytic degradation of oxalic acid in four different solar reactors as a function of accumulated energy (reprinted from Bandala et al., 2004, with permission from Elsevier).

Another consideration that can be applied is observing that the K functions diverge at the center of the reactor (r = 0) and therefore cannot be present in the solution. Taking this into accoimt, we obtain as general solution for any tubular solar reactor... 

Spath, PL. and Amos, W. A., Assessment of Natural Gas Splitting with a Concentrating Solar Reactor for Hydrogen Production, NREL/TP-510-31949, National Renewable Energy Laboratory, Golden, CO, 2002. 

HYDROGEN PRODUCTION VIA WATER SPLITTING IN SOLAR REACTORS THE HYDROSOL PROCESS... 

The first scaled-up version of the solar reactor/receiver currently under construction involves a dual-reactor unit, each part assembled from 9 squareshaped SiC honeycomb pieces with dimensions 146x146 mm. The unit is going... 

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