WO2025257528 - LOW-CARBON HYDROGEN PROCESS
National phase entry is expected:
Publication Number
WO/2025/257528
Publication Date
18.12.2025
International Application No.
PCT/GB2025/051199
International Filing Date
03.06.2025
Title **
[English]
LOW-CARBON HYDROGEN PROCESS
[French]
PROCÉDÉ DE PRODUCTION D'HYDROGÈNE BAS CARBONE
Applicants **
JOHNSON MATTHEY DAVY TECHNOLOGIES LIMITED
Inventors
SADEQZADEH BOROUJENI, Majid
MCKENNA, Mark Joseph
Priority Data
2408485.7
13.06.2024
GB
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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| Pages of Specification | * |
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| Number of Office Actions | * |
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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
* |
| Type of Assignment |
The Standard Agent's Assignment
* |
| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
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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 | 2257 | |
| EPO | Filing, Examination, Granting | 12295 | |
| Japan | Filing, Examination, Granting | 2425 | |
| South Korea | Filing, Examination, Granting | 2546 | |
| USA | Filing, Examination, Granting | 5340 |
Total:
24,863
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Abstract[English]
A process for the production of hydrogen is described comprising the steps of: (i) subjecting a gaseous mixture comprising a hydrocarbon and steam to steam reforming in a reforming unit comprising an autothermal reformer to generate a reformed gas mixture; (ii) increasing the hydrogen content of the reformed gas mixture by subjecting it to one or more water-gas shift stages in a water-gas shift unit to provide a hydrogen-enriched reformed gas; (iii) passing the hydrogen-enriched reformed gas and an oxygen-rich gas to an oxidation unit containing an oxidation catalyst that converts carbon monoxide present in the hydrogen-enriched reformed gas to carbon dioxide, to form a carbon dioxide-enriched gas mixture; and (iv) passing the carbon dioxide-enriched gas mixture to a product separation unit to provide a hydrogen gas stream, a carbon dioxide gas stream and a by-product gas stream, wherein at least a portion of the by-product gas stream is compressed and recycled to one or more of the reforming unit, the water-gas-shift unit, the oxidation unit, and the product separation unit.[French]
L'invention concerne un procédé de production d'hydrogène, comprenant les étapes consistant à : (i) soumettre un mélange gazeux comprenant un hydrocarbure et de la vapeur à un reformage à la vapeur dans une unité de reformage comprenant un reformeur auto-thermique pour générer un mélange gazeux reformé ; (ii) augmenter la teneur en hydrogène du mélange gazeux reformé en le soumettant à une ou plusieurs étapes de conversion eau-gaz dans une unité de conversion eau-gaz pour fournir un gaz reformé enrichi en hydrogène ; (iii) acheminer le gaz reformé enrichi en hydrogène et un gaz riche en oxygène dans une unité d'oxydation contenant un catalyseur d'oxydation qui convertit le monoxyde de carbone présent dans le gaz reformé enrichi en hydrogène en dioxyde de carbone, pour former un mélange gazeux enrichi en dioxyde de carbone ; et (iv) acheminer le mélange gazeux enrichi en dioxyde de carbone dans une unité de séparation de produits pour fournir un flux d'hydrogène gazeux, un flux de dioxyde de carbone gazeux et un flux de sous-produit gazeux, au moins une partie du flux de sous-produit gazeux étant comprimée et recyclée vers une ou plusieurs de l'unité de reformage, de l'unité de conversion eau-gaz, de l'unité d'oxydation, et de l'unité de séparation de produits.