Boreskov Institute of Catalysis of the Siberian Branch of Russian ...

PP-I-1CONVERSION OF ETHANOL OVER COPPER-BEARINGCATALYSTSD.A. Bokarev, E.V. EgorovaMoscow state academy of fine chemical technology named by M.V. LomonosovRussia, 119571, Moscow, Vernadskiy avenue, 86,Fax: 246-48-23, E-mail: nhsigt@mitht.rssi.ruOne of the most perspective directions of chemical industry development is application ofbioethanol for manufacture of valuable chemical compounds. The biotechnology developingby fast rates already now enables to produce ethanol by non-polluting technologies of organicwaste products and biomass conversion by enzymes. The vegetative biomass is a renewablesource of organic raw material and due to a huge annual gain is capable to solve completelyhuman needs for fuel and chemical products. Worldwide conducted researches witnesssubstantial growth of competitiveness of manufacture on the basis of bioethanol. The last onedue to tendencies of decreasing the dependence from raw oil can take a important place inindustrial organic synthesis.On the other part, last years in the world chemical industry the necessity of the decision ofenvironmental problems is got a special urgency. These problems can be solved due tocreation of the new, alternative manufactures described by a minimum quantity of harmfulwaste products and basing renewed sources of raw material.Recent studies carried out in MITHT named by М.V. Lomonosov have shown a numberof valuable products to be formed in ethanol conversion in presence of copper-bearingcatalyst systems. The direction of ethanol transformation depends on both conditions forprocess operating and nature of the used carrier for the copper-bearing catalyst preparation.One of the promising ways of bioethanol processing is catalytic dehydrogenation withformation of acetaldehyde the valuable intermediate product for organic synthesis. Toincrease effectiveness of ethanol dehydrogenation process with acetaldehyde formation and inconnection with mention above adventures the development of new highly active, selectiveand stable catalyst systems is necessary.In presence of catalyst based on carbon to carbon composite material sibunit, developedin Institute of catalysis named by G.K. Boreskov of the Siberian Department of the RussianAcademy of Science, acetaldehyde, not reacted ethanol and hydrogen and water receivedtogether with acetaldehyde were observed. Diethyl ether was stated to be formed with lowyield in the high temperature range. It is necessary to note, that in presence of carbon-basedcatalyst no ethyl acetate has been observed. The acetaldehyde yield reached under optimum212