HETEROGENEOUSLY CATALYZED PARTIAL GAS PHASE OXIDATION OF PROPENE TO ACRYLIC ACID

Abstract Heterogeneously catalyzed partial gas phase oxidation of propene to acrylic acid In a process for heterogeneously catalyzed partial gas phase oxidation of propene to acrylic acid, the starting reaction gas mixture is oxidized at a propene loading of < 160 l(STP)/ l .h in a first reaction...

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Hauptverfasser:	HEIKO ARNOLD, MARTIN DIETERLE, JOCHEN PETZOLDT, KLAUS JOACHIM MUELLER-ENGEL
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Zusammenfassung:	Abstract Heterogeneously catalyzed partial gas phase oxidation of propene to acrylic acid In a process for heterogeneously catalyzed partial gas phase oxidation of propene to acrylic acid, the starting reaction gas mixture is oxidized at a propene loading of < 160 l(STP)/ l .h in a first reaction stage over a fixed catalyst bed 1 which is accommodated in two successive reaction zones A, B, and the acrolein-containing product gas mixture of the first reaction stage is subsequently oxidized in a second reaction stage over a fixed catalyst bed 2 which is a accommodated in two successive reaction zones C, D, the highest temperature of the reaction gas mixture within reaction zone A being above the highest temperature of the reaction gas mixture within reaction zone B and the highest temperature of the reaction gas mixture within reaction zone C being above the highest temperature of the reaction gas mixture within reaction zone D.