摘要:
The invention relates to a method for introducing annular shaped shell catalysts K into a reaction tube of a tube bundle reactor. According to the invention, during the production of the annular-shaped shell catalysts K, pairs of annular-shaped shell catalysts K that are formed are separated at least partially from the annular-shaped shell catalysts prior to introducing into the reaction tube.
摘要:
The invention relates to a method for introducing annular shaped shell catalysts K into a reaction tube of a tube bundle reactor. According to the invention, during the production of the annular-shaped shell catalysts K, pairs of annular-shaped shell catalysts K that are formed are separated at least partially from the annular-shaped shell catalysts prior to introducing into the reaction tube.
摘要:
The invention relates to a method for operating a continuous heterogeneously catalysed gas-phase partial oxidation of at least one organic compound. Said method uses compressed air as the oxygen source, said air being filtered prior to compression.
摘要:
A process for long-term operation of a heterogeneously catalyzed partial gas phase oxidation of an organic starting compound, in which the reaction gas input mixture is partially oxidized over a fixed catalyst bed which is accommodated in two successive temperature zones A, B whose temperature is varied with increasing operating time such that the initially lower temperature is increased and the difference between the two temperatures is reduced.
摘要:
The invention relates to a method for the heterogeneously catalysed partial gas phase oxidation of propylene to form acrylic acid. According to said method, the reaction starting mixture contains cyclopropane as an impurity, and the acrylic acid is separated off by means of separation by crystallisation after being transformed from the product gas mixture into the condensed phase.