Saber UCV
Repositorio Institucional
Repositorio Institucional
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https://saber.ucv.ve/handle/10872/5753
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| Title: | Unsupported Molybdenum Carbide and Nitride Catalysts for Polychlorinated Biphenyls Hydrodechlorination |
| Authors: | Del Toro, Raquel Minichini, Marian Brito, Joaquín L. Betancourt, Paulino |
| Keywords: | Mo carbide Mo nitride Hydrodechlorination PCB NiMo catalyst |
| Issue Date: | 31-Jul-2013 |
| Publisher: | springer |
| Citation: | Catalysis Letters |
| Series/Report no.: | Vol 143;11 |
| Abstract: | Unsupported Mo carbide and Mo nitride catalysts have been synthesized by temperature programmed synthesis, and characterized by X-ray diffraction, X-ray photoelectron spectroscopy, H2-temperature programmed reduction and desorption and N2 physisorption. These solid compounds have been tested for the hydrodechlorination (HDCl) of polychlorinated biphenyls (PCBs) at 1 bar in a fixed bed reactor. The Mo carbides and the corresponding Mo nitride phases showed a catalytic activity higher than a conventional HDS catalyst consisting of alumina-supported NiMo sulfides (*35 %). Aroclor 1260 HDCl conversion results were related to spilt-over hydrogen species that were proposed to favor the hydrogenolysis of C–Cl bond on refractory phases. The original PCBs broad distribution changed almost completely to non-chlorinated biphenyl on the carbide and nitride catalysts. |
| URI: | http://hdl.handle.net/10872/5753 |
| ISSN: | 1011-372X |
| Appears in Collections: | Artículos Publicados |
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