	US 12,012,377 B2
	Method and system for producing one or more olefins and one or more carboxylic acids
Mathieu Zellhuber, Martinsried (DE); Martin Schubert, Munich (DE); Andreas Meiswinkel, Rimsting (DE); Florian Winkler, Munich (DE); Desislava Tota, Munich (DE); and Hans-Jörg Zander, Munich (DE)
Assigned to LINDE GmbH, Pullach (DE)
Appl. No. 15/734,497
Filed by LINDE GmbH, Pullach (DE)
PCT Filed Jun. 19, 2019, PCT No. PCT/EP2019/066308 § 371(c)(1), (2) Date Dec. 2, 2020, PCT Pub. No. WO2019/243480, PCT Pub. Date Dec. 26, 2019.
Prior Publication US 2021/0230093 A1, Jul. 29, 2021
Int. Cl. C07C 5/48 (2006.01); B01J 8/04 (2006.01); C07C 11/04 (2006.01); C07C 51/215 (2006.01); C07C 53/08 (2006.01)

CPC C07C 5/48 (2013.01) [B01J 8/0496 (2013.01); C07C 11/04 (2013.01); C07C 51/215 (2013.01); C07C 53/08 (2013.01); B01J 2208/00044 (2013.01)]

14 Claims

1. Method for producing ethylene and acetic acid, in which ethane is subjected to an oxidative dehydrogenation,

wherein a reactor (10) having a plurality of reaction zones (11, 12, 13) is used for the oxidative dehydrogenation,

wherein a gas mixture comprising the ethane is successively passed through the reaction zones (11, 12, 13),

wherein at least two of the plurality of reaction zones (11, 12, 13) comprise catalysts of a same catalyst type and are subjected to varying temperature influences,

wherein the catalysts of the same catalyst type are catalysts comprising molybdenum, vanadium, and niobium in the same basic formulation which are provided in different concentrations or contents per unit space, and

wherein the oxidative dehydrogenation is performed in a temperature range of 240 to 500° C. and a pressure range at an inlet of the reactor of 1 to 10 bar absolute pressure.