Photocatalytic and Chemical Oxidation of Organic Compounds in Supercritical Carbon Dioxide

Technical Report · Tue Jul 13 00:00:00 EDT 1999

DOI:https://doi.org/10.2172/14658· OSTI ID:14658

Blake, D M ^[1]

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1. National Renewable Energy Laboratory

Determine if photocatalytic or other clean oxidation chemistry can be applied to the removal of organic or inorganic contaminants that are introduced into supercritical carbon dioxide during its use as an extraction and cleaning medium in DOE environmental and waste minimization applications. The targets are those contaminants left in solution after the bulk of the solutes have been separated from the fluid phase by changing pressure and/or temperature (but not evaporating the CO2). This is applicable to development of efficient separations of contaminants from the fluid stream and will strengthen pollution prevention strategies that eliminate hazardous solvents and cleaning agents. Explore the use of supercritical carbon dioxide as a solvent for the photocatalytic oxidation of organic compounds and compare it to other types of oxidation chemistry. This will add to the fundamental understanding of photocatalytic oxidation chemistry of particulate semiconductors and provide new knowledge about conditions that may have relevance to the chemical fixation of carbon dioxide under photocatalytic conditions.

• Research Organization: National Renewable Energy Lab., Golden, CO (US)
• Sponsoring Organization: USDOE Office of Environmental Management (EM) (US)
• DOE Contract Number: AC36-99GO10337
• OSTI ID: 14658
• Report Number(s): EMSP54847
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
CARBON DIOXIDE
CHEMICAL OXIDATION
CHEMISTRY
CLEAN OXIDATION CHEMISTRY
CLEANING
CONTAMINANTS
HAZARDOUS SOLVENTS
MINIMIZATION
ORGANIC COMPOUNDS
OXIDATION
PARTICULATE SEMICONDUCTORS
PARTICULATES
PHOTOCATALYTIC
POLLUTION
POLLUTION PREVENTION
REMOVAL
SOLUTES
SOLVENTS
SUPERCRITICAL CARBON DIOXIDE
TARGETS
WASTES