Uhde Gmbh

Hans-Dieter Marsch

Hans-Joachim Herbort

Manfred Severin

Hans-Gunther Briecke

A device for feeding a gaseous fluid radially from a center of a vessel outwards, including a central vertical gas feed tube having at least one vertical row of discharge openings, a catalyst bed of bulk material accommodated in a perforated basket, which includes a perforated cylindrical surface surrounding the central vertical gas feed tube in a spaced relationship thereto and defines with the guide feed tube a hollow cylindrical space, the perforated cylindrical surface defining an impingement surface of the catalyst bed, and deflector elements provided at the at least one row of the discharge openings to insure a substantially tangential flow of gas into the hollow cylindrical space.

Device for feeding a gaseous fluid through a bed of bulk material

A device for the generation of synthesis gas with a plurality of catalyst-filled reformer tubes suspended in a pressure vessel, the reformer tubes being at least partially enveloped by jacket tubes intended to conduct product gas in an upward direction from a lower mixing chamber into the head space of the pressure vessel, the intended purpose of said device being to provide a solution, in particular for improving the mixing of the ensuing streams while simultaneously equalizing the heat transfer by mechanically simple and economical means. This is achieved by making the jacket tubes protrude beyond the ends of the reformer tubes thus forming an individual mixing chamber for each reformer tube.

Reformer for the generation of synthesis gas

A vessel for the generation of synthesis gas at a high pressure, using hydrocarbons, includes a catalytic endothermic reforming section with a plurality of reformer tubes heated externally and filled with a catalyst, and a mixture of hydrocarbons and steam entering the reformer tubes which are positioned by a common plate. The reforming gas generated in the tubes flows from the tubed section into a partial oxidation section which has a larger diameter than the tubed section and the shape of a pressure vessel closed at one end, the free ends of the reformer tubes penetrating into the partial oxidation section, and in which inlet gas such as additional hydrocarbons and oxygen or oxygen-rich gas are mixed with the reforming gas. A plurality of inlet devices for the inlet gas are positioned in the cylindrical shell of the partial oxidation section with the axes of the gas flow streams being inclined away from the radial. The inlet devices are spaced a predetermined distance from the outlet end of the reformer tubes such that a rotary gas vortex is produced and the product gas stream flows through the outer section of the chamber, heats the reformer tubes and leaves the reforming section via an outlet nozzle.

Vessel for the generation of synthesis gas

A device for manufacturing a product gas containing hydrogen and carbon oxide from a feedgas mixture comprised substantiallty of hydrocarbon, includes a vessel partitioned by a tubesheet into an upper chamber and a lower chamber. Reformer tubes are mounted on and extend through the tubesheet from the upper chamber into the lower chamber. Each reformer tube is laterally enclosed over at least a portion of its axial length downwardly from the tubesheet by a jacket spaced outwardly therefrom forming an annular space extending along each said tube for establishing communication between the upper the lower chambers, allowing the product gas to be withdrawn from the upper chamber. The tubesheet forms a distribution chamber for directing the feedgas mixture into the reformer tubes. The tubesheet is formed of an inner hollow body mounted within an outer hollow body, with the two hollow bodies being in flow communication. Due to the arrangement of the hollow bodies forming the tubesheet and the jackets forming the annular spaces, the problem of reducing the pressure and temperature differences across the tubesheet is effected while maintaining good over-all performance of the reaction vessel.

Device for manufacturing a product gas containing hydrogen and carbon

In a heat exchanger for heat transfer between ammonia converter effluent recycle gases and water, a plurality of U-shaped tubes have their inlet and outlet ends connected to a tubesheet which divides the interior of a shell into a pressure chamber and a heat exchange chamber containing the tubes. The pressure chamber is divided into an inlet chamber and an outlet chamber with the cooled recycle gases flowing into the outlet chamber and cooling the inlet chamber. The tubes are formed of ferritic steel and are welded to the tubesheet. A tubular cladding of nitriding-resistant material extends through the tubesheet at the inlets to the tubes and spaces the recycle gases from the tubes at the inlet ends.

Heat exchanger incorporating nitriding-resistant material

The invention relates to an apparatus for lining the inner walls of industrial furnaces with a plurality of insulating blocks, each block comprising an insulating mat which is folded in corrugated manner and possibly stitched in this shape, the insulating mats being made of highly heat-resistant material, especially ceramic fibrous material, with carrying elements arranged on the outside of the corrugations, the carrying elements being equipped on the outside of the insulating blocks with fixing means to allow each individual insulating block to be fixed to the furnace wall.

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Dortmund, Germany

Hans-Dieter Marsch