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PHOTOOXIDATION OF HYDROCARBONS TO PARTIAL OXYGENATES IN AN AQUEOUS ENVIRONMENT [EXHIBIT, POSTER]
Citation:
Zhao*, A Q. AND M A. Gonzalez*. PHOTOOXIDATION OF HYDROCARBONS TO PARTIAL OXYGENATES IN AN AQUEOUS ENVIRONMENT [EXHIBIT, POSTER]. Presented at American Chemical Society, Covington, KY, 04/16-19/2000.
Description:
The USEPA is researching the use of alternative oxidation technologies (AOT's) as a catalytic process for the selective oxidation of hydrocarbon substrates. One AOT currently under investigation is the use of photocatalysis employed with a laminar thin-film falling reactor. This process employs an aqueous environment, molecular oxygen, titanium dioxide (TiO2), and a low-pressure Hg lamp (UV source) to selectively synthesize partial-oxygenates. This light-induced catalytic reaction possesses unique reaction conditions that include ambient reaction temperatures and pressures, as well as the use of an inexpensive semi-conductive material and an environmentally friendly solvent. It is anticipated this oxidation technology may offer improved selectivities and overall conversion of the parent substrate from results obtained in batch reactor studies. The effect of variables to be presented include reactor pump speed, falling film thickness, exposure time, catalyst concentration, and type of substrate.