Back to results
US 2025/0145482 A1Published application
Ammonia synthesis and urea synthesis with reduced co2 footprint
AssigneesThyssenkrupp Uhde GmbH, thyssenkrupp AG
InventorsFrederick KESSLER, Yevgeny MAKHYNYA
Life of this patent
Estimating the term…
Abstract
The present invention relates to an apparatus for synthesis of ammonia, in which the gases formed on the burner side of the primary reformer are used at least partly as reactants.
Claims19
1-19. (canceled)
A plant for synthesis of ammonia, comprising:
- a reformer for conversion of a hydrocarbon to hydrogen;
- a converter for conversion of hydrogen and nitrogen to ammonia, wherein the converter is incorporated into a recirculation circuit, wherein a first carbon dioxide separator is disposed between the reformer and the recirculation circuit, wherein the recirculation circuit has an ammonia separator;
- a further hydrogen source connected to the recirculation circuit such that hydrogen is fed into the recirculation circuit;
- and
- a combustion apparatus connected to the reformer.
2 more elements
A method of increasing a capacity of an existing plant for synthesis of ammonia, comprising:
- extending the plant to include a further hydrogen source, wherein the further hydrogen source is connected to a recirculation circuit such that hydrogen is fed into the recirculation circuit, wherein a burner side of a primary reformer is connected to a secondary reformer.
A method of increasing a capacity of an existing integrated plant system including a plant for synthesis of ammonia and a plant for further synthesis of urea from the ammonia produced, the method comprising:
- extending the integrated plant system to include a further hydrogen source and a second carbon dioxide separator, wherein the further hydrogen source is connected to a recirculation circuit such that hydrogen is fed into the recirculation circuit, wherein a burner side of a primary reformer is connected to the second carbon dioxide separator, wherein the second carbon dioxide separator is connected to the recirculation circuit such that nitrogen is fed into the recirculation circuit, wherein the second carbon dioxide separator is connected to a urea synthesis apparatus such that carbon dioxide is fed into the urea synthesis apparatus.
Dependencies are inferred from the claim text.