Solar reduction of CO2

The red shift of the absorption spectrum of CO2 with increasing temperature permits the use of sunlight to photolyze CO2 to CO. The process of the present invention includes: preheating CO2 to near 1800 K; exposing the preheated CO2 to sunlight, whereby CO, O2 and O are produced; and cooling the hot...

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Bibliographische Detailangaben
Hauptverfasser:	GUETTLER, ROBERT D, KING, JOE D, LYMAN, JOHN L, JENSEN, REED J
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS BEER BIOCHEMISTRY BLASTING BREWING OF BEER CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS,e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USERAPPLICATIONS COMPOUNDS THEREOF ENZYMOLOGY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING INORGANIC CHEMISTRY LIGHTING MECHANICAL ENGINEERING METALLURGY MICROBIOLOGY MUTATION OR GENETIC ENGINEERING NON-METALLIC ELEMENTS ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL RANGES REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION SOLAR HEAT COLLECTORS SOLAR HEAT SYSTEMS SPIRITS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THEIR RELEVANT APPARATUS TRANSPORTING VENTILATING VINEGAR WEAPONS WINE
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Beschreibung
Zusammenfassung:	The red shift of the absorption spectrum of CO2 with increasing temperature permits the use of sunlight to photolyze CO2 to CO. The process of the present invention includes: preheating CO2 to near 1800 K; exposing the preheated CO2 to sunlight, whereby CO, O2 and O are produced; and cooling the hot product mix by rapid admixture with room temperature CO2. The excess thermal energy may be used to produce electricity and to heat additional CO2 for subsequent process steps. The product CO may be used to generate H2 by the shift reaction or to synthesize methanol.