Arkema Inc.

Arkema France

Nicolas Dupont

Roger L Roundy

John L Steinbach

Michael Stanley DeCourcy

Michael S Decourcy

Arnaud Souet

David Urbaniak

Emmanuel Lambert

The present disclosure relates to a single shell open interstage reactor ('SSOI'). The SSOI comprises a first reaction stage, an interstage heat exchanger, an open interstage region, and a second reaction stage. The SSOI may be configured for upflow or downflow operation. Further, the open interstage region of the SSOI may comprise a supplemental oxidant feed. When the open interstage region comprises a supplemental oxidant feed, the SSOI may further comprise a supplemental oxidant mixing assembly. Processes for producing acrylic acid through the oxidation of propylene are also disclosed.

Shell and tube oxidation reactor with improved resistance to fouling

The present invention relates to a method for filling a multitube catalytic reactor and to a set of inserts suited to implementing this method. The method of the invention is based on the use of inserts of different types allowing superposed layers of catalysts to be placed in the reaction compartments. The heads of the inserts are visually distinct according to the type of insert, making it possible to avoid filling errors and thus allowing the various layers of catalyst to be filled reliably and simultaneously on a reactor scale.

Method for filling a multitube catalytic reactor

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Saint Avold, France

Nicolas Dupont