Oxidation process in fluidised bed reactor

C - Chemistry – Metallurgy – 07 – C

Patent

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C07C 51/215 (2006.01) B01J 8/18 (2006.01) B01J 8/24 (2006.01) C07C 51/25 (2006.01) C07C 53/08 (2006.01) C07C 67/055 (2006.01) C07C 69/01 (2006.01) C07C 253/24 (2006.01)

Patent

CA 2468500

A process for reacting in a fluid bed reactor at least one oxidisable reactant with molecular oxygen in the presence of a catalytically active fluidised bed of solid particles. In the process a molecular oxygen-containing gas having an oxygen concentration greater than that of air is introduced into the fluidised bed whilst the fluidised bed is maintained in a turbulent regime. The process is suitable for oxidation, ammoxidation and carboxylation processes, including the production of maleic anhydride, acrylonitrile, ethylene, acetic acid and vinyl acetate.

L'invention concerne un procédé consistant à faire réagir dans un réacteur à lit fluidisé au moins un réactif oxydable avec de l'oxygène moléculaire en présence d'un lit fluidisé de particules solides, actif d'un point de vue catalytique. Dans le procédé, un gaz contenant de l'oxygène moléculaire et qui présente une concentration d'oxygène supérieure à celle de l'air est introduit dans le lit fluidisé pendant que celui-ci est maintenu dans un régime turbulent. Ce procédé convient pour des procédés d'oxydation, d'ammoxydation et de carboxylation, y compris la production d'anhydride maléique, d'acrylonitrile, d'éthylène, d'acide acétique et d'acétate de vinyle.

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