COLL 473 |
| Debasish Kuila1, Shihuai Zhao1, Venkata S. Nagineni1, Avinash Potluri1, H. Indukuri1, Yu Liang1, W. Cao1, J. Hu1, Ji Fang1, K. Varahramyan1, Raja Nassar2, James Palmer3, Upali Siriwardane4, and Seetala V. Naidu5. (1) Institute for Micromanufacturing/Chemistry, Louisiana Tech University, 911 Hergot Ave., Ruston, LA 71272, (2) Institute for Micromanufacturing, Louisiana Tech University, Institute for Micromanufacturing/Math, 911 Hergot Ave., Ruston, LA 71272, (3) Chemical Engineering & Institute for Micromanufacturing, Louisiana Tech University, 911 Hergot Ave., Ruston, LA 71272, (4) Department of Chemistry, Louisiana Tech University, Ruston, LA 71270, (5) Department of Physics, Grambling State University, Grambling, LA 71245 |
| Microchannel microreactors based on Si (5-100 μ) have been used to study heterogeneous catalysis of three significant reactions: hydrogenation and dehydrogenation of cyclohexene, preferential oxidation for CO amelioration in feed for Proton Exchange Membrane (PEM) based fuel cells and Fischer-Tropsch synthesis to higher alkane fuels. For the prototype reaction, a 95 % conversion of cyclohexene has been achieved with sputtered and sol-gel coated platinum catalyst. Conversion of synthesis gas (CO:H2) to higher alkanes (~ 75% with a selectivity to propane of 80%) and carbon monoxide to carbon dioxide ( ~ 90% conversion with a selectivity of 90% to CO2) to process the feed gas have also been quite successful. The nano-catalysts for these processes have been characterized using SEM, EDX, AFM, VSM and BET surface area measurements. A parallel-array of reactors has been developed for multiple reaction studies and catalyst screening. Design of experiments for these reactions will be presented. |
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Symposium in Memory of Arthur W. Adamson
8:30 AM-11:50 AM, Thursday, April 1, 2004 Marriott -- Orange County 3, Oral
Division of Colloid and Surface Chemistry |