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US 2025/0177939 A1Published application
Method for controlling an ammonia or methanol converter
AssigneeCasale SA
InventorsGiovanni GENOVA, Sergio PANZA
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Abstract
Method for controlling an ammonia synthesis converter or a methanol synthesis converter during intermittent availability of a renewable power-dependent hydrogen feed, wherein under a limited or no availability of power the converter effluent is recycled back to the inlet of said converter in a loop, and heated to keep said converter in a hot stand-by mode wherein the temperature in the reaction space remains within a target range.
Claims17
A method for controlling an ammonia synthesis converter or a methanol synthesis converter during intermittent availability of a renewable power-dependent hydrogen feed, wherein:
- said converter includes a reaction space containing a catalyst and configured to react a reagent gas, including said hydrogen feed, to form ammonia or methanol;
- wherein, in a condition when the renewable power available for generation of the hydrogen feed is below a threshold value, the method comprising:
- recycling at least a portion of the converter effluent back to an inlet of said converter in a loop;
- and
- heating the recycled converter effluent so to keep said converter in a stand-by mode, wherein a temperature in the reaction space is within a target range;
- wherein the recycled converter effluent is heated in a startup heater of said converter.
3 more elements
Dependencies are inferred from the claim text.