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US 2026/0250220 A1Published application
Production of ethylene via oxidative dehydrogenation of ethane
AssigneeSabic Global Technologies B.V.
InventorsZheng LIU, Robert Roger BROEKHUIS, Tian GU, Muralikrishnan GOPALAKRISHNAN
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Abstract
Processes for producing ethylene from ethane are described. A process can include oxidatively dehydrogenating ethane to produce a product stream that includes ethylene, ethane, and gases having a lower boiling temperature than ethylene. The product stream can be cooled under mild conditions and then separated to produce a stream that includes ethylene and ethane and a stream that includes the gases having a lower boiling temperature than ethylene.
Claims15
An oxidative dehydrogenation process for converting ethane to ethylene, the process comprising:
- (a) contacting a feed stream comprising ethane with an oxidative dehydrogenation catalyst in the presence of oxygen under conditions sufficient to produce a first product stream comprising ethane, ethylene, and one or more gases having a lower boiling temperature than ethylene, wherein the conditions comprise a pressure of 1.8 MPa to 5 MPa;
- (b) feeding the first product stream comprising ethane, ethylene, and one or more gases having a lower boiling temperature than ethylene to an inlet of a gas separation unit at a temperature of −40° C. to −10° C.;
- and
- (c) separating the one or more gases having a lower boiling temperature than ethylene from the first product stream of step (b) to produce a second product stream comprising ethane and ethylene.
1 more element
Dependencies are inferred from the claim text.