WO2026028087 - ONLINE REGENERATION OF OXIDATIVE DEHYDROGENATION CATALYST BY TREATMENT IN PROCESS STREAM
National phase entry is expected:
Publication Number
WO/2026/028087
Publication Date
05.02.2026
International Application No.
PCT/IB2025/057646
International Filing Date
28.07.2025
Title **
[English]
ONLINE REGENERATION OF OXIDATIVE DEHYDROGENATION CATALYST BY TREATMENT IN PROCESS STREAM
[French]
RÉGÉNÉRATION EN LIGNE D'UN CATALYSEUR DE DÉSHYDROGÉNATION OXYDATIVE PAR TRAITEMENT DANS UN FLUX DE TRAITEMENT
Applicants **
NOVA CHEMICALS (INTERNATIONAL) S.A.
Inventors
TAYLOR, Jared
GOODARZNIA, Shahin
CHIMSUNUM, William
SIMANZHENKOV, Vasily
Priority Data
63/677,603
31.07.2024
US
Application details
| Total Number of Claims/PCT | * |
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2406 | |
| EPO | Filing, Examination, Granting | 13144 | |
| Japan | Filing, Examination, Granting | 2433 | |
| South Korea | Filing, Examination, Granting | 2637 | |
| USA | Filing, Examination, Granting | 5540 |
Total:
26,160
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Abstract[English]
A method of concurrently producing ethylene and regenerating a first oxidative dehydrogenation (ODH) catalyst that is at least partially deactivated is disclosed. The method includes contacting, in a first reactor, the first ODH catalyst with a first gaseous feed comprising ethane and oxygen under conditions such that conversion of oxygen in the first reactor is less than or equal to 90% to produce a first product stream comprising ethylene and to regenerate the first ODH catalyst, wherein the molar ratio of ethane to oxygen in the first gaseous feed is between 0.5 and 1.5.[French]
L'invention concerne un procédé de production simultanée d'éthylène et de régénération d'un premier catalyseur de déshydrogénation oxydative (ODH) qui est au moins partiellement désactivé. Le procédé comprend la mise en contact, dans un premier réacteur, du premier catalyseur ODH avec une première charge gazeuse comprenant de l'éthane et de l'oxygène dans des conditions telles que la conversion d'oxygène dans le premier réacteur est inférieure ou égale à 90% pour produire un premier flux de produit comprenant de l'éthylène et pour régénérer le premier catalyseur ODH, le rapport molaire de l'éthane à l'oxygène dans la première charge gazeuse étant compris entre 0,5 et 1,5.