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- W130186487 abstract "The objective of this program was to continue developmental research on three promising chemical processes for producing hydrogen from water using a solar thermal energy source. The effort consisted of parametric laboratory studies of various process steps and a conceptual design of a solar reactor/receiver suitable for use with a solid reactant. The thermal decomposition of copper (II) oxide to copper (I) oxide and oxygen was studied at temperatures from 800/sup 0/ to 950/sup 0/C using steam as a carrier gas. The reaction followed a shrinking-sphere model rate law. The thermal decomposition of anhydrous copper sulfate was studied using nitrogen and sulfur dioxide as carrier gases. Similarly, the thermal decomposition of zinc sulfate was studied under both nitrogen and sulfur dioxide carrier gases. The precipitation of zinc sulfate from aqueous solution by taking advantage of its retrograde solubility was studied at 250/sup 0/C and 700 psi. Experimental results confirmed that the addition of certain homogeneous catalysts, such as hydrogen iodide, to the solution neither interfered with the sulfate precipitation nor were themselves precipitated. Several conceptual designs of solar reactor/receivers were evaluated specifically for use in decomposing solid metal sulfates. Five designs were selected as likely candidates for further experimental work: (1) a rotary kiln, (2) a fluidized bed, (3) an air slide, (4) a rotating drum, and (5) a pebble bed reactor. The air slide was chosen as the most promising." @default.
- W130186487 created "2016-06-24" @default.
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- W130186487 date "1982-12-01" @default.
- W130186487 modified "2023-09-27" @default.
- W130186487 title "High-temperature solar hydrogen process. Final report, April 1, 1081-May 31, 1982" @default.
- W130186487 doi "https://doi.org/10.2172/6609218" @default.
- W130186487 hasPublicationYear "1982" @default.
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