Method for converting an existing industrial unit to produce hydrogen from ammonia
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorsChristoph Beyer, Robert Breining, Dieter Ulber
Life of this patent
Estimating the term…
Abstract
A method for converting an existing steam methane reformer (SMR) to produce hydrogen via ammonia cracking is provided. The method can include the steps of: providing the existing SMR, wherein the SMR was formerly used to produce hydrogen from a hydrocarbon feedstock; and improving the nitridation resistance of the inner surface of the equipment by adding a protective layer to an inner surface of equipment to be used in the existing SMR, wherein the equipment is selected from the group consisting of a catalyst tube, feed piping, a feed preheater, process gas heat exchangers, and combination thereof.
Claims18
A method for converting an existing steam methane reformer (SMR) to produce hydrogen via ammonia cracking by adding a protective layer to an inner surface of equipment to be used in the existing SMR, the method comprising the steps of:
- providing the existing SMR, wherein the SMR was formerly used to produce hydrogen from a hydrocarbon feedstock;
- improving the nitridation resistance of the inner surface of the equipment;
- and
- fluidly connecting the existing SMR with an ammonia source, such that existing SMR is configured to receive ammonia from the ammonia source,
- wherein the equipment is selected from the group consisting of a catalyst tube, feed piping, a feed preheater, process gas heat exchangers, and combination thereof.
A method for adding a protective layer to equipment to be used in an existing hydrogen industrial unit, the method comprising the steps of:
- providing the existing hydrogen industrial unit, wherein the hydrogen industrial unit was formerly used to produce hydrogen from a hydrocarbon feedstock;
- improving the nitridation resistance of an inner surface of the equipment, wherein the equipment that has improved nitridation resistance is a new piece of equipment or was previously used in the existing hydrogen industrial unit, and
- fluidly connecting the existing hydrogen industrial unit with an ammonia source, such that existing hydrogen industrial unit is configured to receive ammonia from the ammonia source.
Dependencies are inferred from the claim text.