Cognis Deutschland Gmbh & Co. Kg

Henkel Kommanditgesellschaft Auf Aktien

Juergen Latzel

Roland Hourticolon

Gerd Goebel

Franz-Josef Carduck

Guenther Demmering

Lothar Friesenhagen

Eberhard Peukert

Hans-Peter Kubersky

Udo Kreutzer

Friedrich Hommers

Axel Geisler

Reinhard Eltner

Hans-Guenther Richard

Petro Mendia

A liquid distributor, for a substantially vertical reactor with a fixed bed catalyst, in the form of a channel distributor with drainage outlets and further comprising an internal cleaning mechanism with cleaning elements to be lowered into the openings of the drainage outlets, is disclosed.

Liquid distributor with cleaning mechanism

Naturally occurring fats, oils and fatty derivatives are continuously hydrogenated to fatty alcohols in a fixed-bed reactor in the presence of hydrogen in excess and hydrogenation catalysts under static pressures of 50 to 300 bar and at temperatures of 160 to 320&deg; C. The liquid product is cooled and the excess hydrogen is returned to the reactor entrance by a gas circulation pump as a recycle gas after separation of the liquid product. The expense involved in cooling and reheating the recycle gas is eliminated without any reduction in the quality of the fatty alcohol produced providing the recycle gas is returned to the reactor entrance without reheating and the hydrogenation reaction is carried out under static pressures of at least 200 bar.

Process for the production of fatty alcohols

A method for the removal of a spent catalyst from a fixed-bed reactor is disclosed, wherein a suction hose, in which a high pressure hose comprising a high-pressure nozzle is integrated, is introduced into the reactor, the catalyst is then size-reduced by water under high pressure passed through the nozzle, the catalyst/water mixture is removed under suction and is optionally collected in a separator.

Method for emptying fixed-bed reactors

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Wuppertal, Germany

Juergen Latzel