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  • Articles: DFG German National Licenses  (5)
  • catalyst circulation  (3)
  • Rotational Brownian motion  (2)
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  • Articles: DFG German National Licenses  (5)
Material
Years
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Rotational displacements in crystals (1973)
    Springer
    Journal of statistical physics 8 (1973), S. 177-181 
    Details
    ISSN: 1572-9613
    Keywords: Rotational Brownian motion ; rotational displacements
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The problem of random rotational displacement is solved and the theory of Brownian motion of molecules in crystals is developed. The probability distribution of orientations of a molecule is found as a decomposition into matrix elements of irreducible representations of point groups.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01008538
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    The quasicrystal model of rotational Brownian motion (1973)
    Springer
    Journal of statistical physics 8 (1973), S. 183-188 
    Details
    ISSN: 1572-9613
    Keywords: Rotational Brownian motion ; liquid ; probability distribution of orientations ; model of Frenkel
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The quasicrystal model of the rotational Brownian motion in a liquid has been studied. The probability distribution of orientations of a Brownian particle is given in the form of a series of generalized spherical functions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01008539
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Control of the selectivity in partial oxidation of hydrocarbons (1999)
    Springer
    Reaction kinetics and catalysis letters 66 (1999), S. 47-54 
    Details
    ISSN: 1588-2837
    Keywords: Partial oxidation ; hydrocarbons ; catalyst circulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract A simple kinetic model for the partial oxidation of hydrocarbons on two types of sites was used to study the factors influencing the selectivity to the desired product. It is possible to increase the selectivity significantly by regulating the ratio of the surface concentrations of partial and deep oxidation sites by a periodic temperature treatment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02475740
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    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Multiplicity of regimes in a dual-reactor system for partial oxidation of hydrocarbons with the catalyst unsteady state (1999)
    Springer
    Reaction kinetics and catalysis letters 67 (1999), S. 213-218 
    Details
    ISSN: 1588-2837
    Keywords: Partial oxidation ; hydrocarbons ; catalyst circulation ; multiplicity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract A mathematical modeling of a dual-reactor system based on a simple kinetic scheme with two types of sites (accounting for deep and partial oxidation) has been performed. It has been shown that it is possible to regulate the state of a catalyst in the reaction zone by varying the rate of the catalyst circulation between the reactors, thus, significantly increasing the reaction selectivity. A region of multiplicity of the process stationary regimes has been found. This region appeared to become smaller with the increase of the catalyst circulation rate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02475850
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Spatial regulation of the catalyst activity enhancement for catalytic reactions with stop-effect (1999)
    Springer
    Reaction kinetics and catalysis letters 68 (1999), S. 393-398 
    Details
    ISSN: 1588-2837
    Keywords: Dual-reactor system ; “stop-effect” ; catalyst circulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract A kinetic model taking into account two types of active sites has been used for an analysis of factors influencing the rate of a catalytic reaction. It has been shown that the reaction rate can be significantly increased by performing the reaction with the “stop-effect” in a dual-reactor system due to the catalyst circulation between two reactors, one of which is purged with an inert gas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02475529
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    Paper (German National Licenses)
    Fulltext
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