Man Dwe Gmbh

Friedrich Guetlhuber

Manfred Lehr

The invention relates to a tubular reactor for carrying out catalytic gas-phase reactions, containing a catalyst tube bundle () that is traversed by the relevant reaction gas mixture, is filled with a catalyst, extends between two tube sheets () and around which flows a heat transfer medium contained within a surrounding reactor jacket (). The reactor also comprises gas entry and discharge hoods () that cover the two tube sheets for supplying the relevant process gas to the catalyst tubes and for discharging the reacted process gas from the catalyst tubes. Together with all the parts that come into contact with the process gas mixture, the reactor is designed to have an appropriate strength for withstanding the deflagration and explosive pressures that are to be taken into account during its operation. The volume available to the process gas mixture prior to its entry into the catalyst tubes is restricted as much as possible in construction and flow engineering terms.

Shell-and-tube type reactor for carrying out catalytic gaseous phase reactions and a procedure for operating the same

A tubular reactor () for catalytic reactions with a heat carrier that inside a reactor jacket () circulates around a contact tube bundle (), which extends between a tube plate () at the reaction gas inlet side and one at the reaction gas outlet side with gas inlet and gas outlet hoods () spanning the face sides of the two tube plates and containing reaction-inhibiting media in the zone of the tube plate on the gas inlet side, characterize themselves in that the reaction-inhibiting media consist entirely or in part of a heat insulation layer () with openings for the tube cross-sections on at least one of the two sides of the respective tube plate (). In this manner, either the respective tube plate () is insulated against the hot heat carrier or the reaction gas entering into the reactor is prevented from having contact with the comparatively hot tube plate in order to prevent harmful secondary reactions at the reactor inlet.

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Neubiberg, Germany

Friedrich Guetlhuber