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  • 1
    Digitale Medien
    Digitale Medien
    Selective synthesis of C2-C4 hydrocarbons from CO + H2 on composite catalysts (1993)
    Springer
    Catalysis letters 22 (1993), S. 179-187 
    Details
    ISSN: 1572-879X
    Schlagwort(e): Cu-Zn-Al catalyst ; hybrid catalyst ; hydrotalcite ; methanol synthesis ; synthesis of C2-C4 hydrocarbons ; zeolites
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract A copper-zinc-aluminum methanol synthesis catalyst has been prepared using a precipitated hydrotalcite-type precursor that decomposes to a mixture of the corresponding amorphous oxides at a low temperature. TPR studies show that such a mixture is easy to reduce giving a highly dispersed catalyst. When this is mixed with a zeolite, the resulting hybrid catalyst gives C2-C4 hydrocarbons with very high selectivity. This may be useful in obtaining LPG from synthesis gas.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00810364
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    On modelling stratospheric positive ions (1988)
    Springer
    Journal of atmospheric chemistry 6 (1988), S. 175-183 
    Details
    ISSN: 1573-0662
    Schlagwort(e): Stratosphere ; spherical probe ; recombination coefficient ; ion-composition ; ion density ; exothermic reaction ; Gerdien condenser
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Geologie und Paläontologie
    Notizen: Abstract There has been a considerable improvement in the knowledge of stratospheric positive ion chemistry during the last decade. Results of several in-situ measurements of ion composition have been reported. Total ion density has also been measured with greater accuracy. In this work, theoretical study has been made to reproduce the main features of the above observations. Difficulties encountered in such studies are discussed. Finally models of total ion density and ion composition are given.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00053853
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
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