III International Conference

PP-III-92APPLICATION OF ZIRCONIUM-CONTAINING CATALYSTS FOR OBTAININGOF NEW FUELSKruglova M., Yaroshenko M., Antonyuk S. 1 , Kositsyna S. 1 , Golosman E.Joint-Stock Company Novomoskovsk Institute of Nitrogen Industry, Novomoskovsk, Russia1 M.V. Lomonosov Moscow State Academy of Fine Chemical Technology, Moscow, RussiaE-mail: gez@novomoskovsk.ruCopper-zinc-zirconium catalytic systems were synthesized. Their formation has beeninvestigated by XRD, DTA and IR-spectroscopy. It has been shown that the introduction ofzirconium compounds results in increase of copper-zinc catalysts efficiency in methanolconversion.Application of methanol in industry obtains more and more wide application. Nowperspective direction is use of methanol and gaseous products of its catalytic decompositionas alternate motor fuel oil. In this connection there is a need for creation of high-performancecatalysts and definition of optimum conditions of their activity.Existing data shows that the introduction of zirconium compounds in copper catalyticsystems promotes increase of activity and selectivity in a number of processes. The proposedcatalysts are copper-zinc-zirconium cement-containing systems. The conducted researcheshave shown availability of active Cu-Zn-Zr-O phase components interaction that causesdecreasing the average size of coherently scattering domains (CSD) of CuO (up to 12 nm),increasing of the amorphous ZnO part and stabilization of zirconia in the amorphouscondition. Also the introducing zirconium compounds has promoted increasing the specificsurface and porosity of the obtained catalysts.By results of activity tests in the methanol decomposition and methanol-water mixtureconversionl it has been determined that the zirconium-containing contacts show higheractivity and selectivity as contrasted to Cu-Zn-catalysts. The achievement of the maximumdegree of methanol conversion in the presence of zirconium-containing catalysts has occurredat lower temperatures. Thus during the methanol decomposition process the methaneformation as by-product were reduced by 6 – 7 times, and CO content in products ofmethanol – water mixture conversion was 2 times as less as one was in the presence ofcopper-zinc catalysts without zirconium-containing agent.The researches have shown that the introduction of zirconia provides essential increase ofcopper – zinc catalysts efficiency in the process of methanol conversion with the purpose ofobtaining the hydrogenous fuel.642