Back to results
US 2024/0109772 A1Published application
Hydrogen Production by Sulfur Steam Reforming
AssigneeSaudi Arabian Oil Company
InventorsGuillaume Robert Jean-Francois Raynel, Sebastien A. Duval, Jose Choy Pernia
Life of this patent
Estimating the term…
Abstract
A system and method for producing hydrogen, including steam reforming elemental sulfur to generate hydrogen gas and sulfur dioxide, to give a mixture including hydrogen gas, sulfur dioxide, elemental sulfur gas, and water vapor, removing the elemental sulfur gas to give a process gas including the hydrogen gas, sulfur dioxide, and water vapor, and isolating the hydrogen gas or a hydrogen gas rich stream.
Claims26
A method of producing hydrogen, comprising:
- steam reforming elemental sulfur from a sulfur pit, thereby generating hydrogen gas and sulfur dioxide, to give a mixture comprising hydrogen gas, sulfur dioxide, elemental sulfur gas, and water vapor;
- condensing elemental sulfur gas in the mixture in a condenser into liquid elemental sulfur and discharging liquid elemental sulfur from the condenser to the sulfur pit, wherein the condenser comprises a heat exchanger;
- and
- discharging a process gas from the condenser, wherein the process gas comprises hydrogen gas and sulfur dioxide generated in the steam reforming.
1 more element
A hydrogen production system comprising:
- a vessel configured to receive elemental sulfur from a sulfur pit and steam reform the elemental sulfur into hydrogen gas and sulfur dioxide, and discharge a mixture comprising hydrogen gas, sulfur dioxide, elemental sulfur gas, and water vapor;
- and
- a condenser heat exchanger to receive the mixture and condense elemental sulfur gas in the mixture into liquid elemental sulfur, and discharge liquid elemental sulfur to the sulfur pit and discharge a process gas comprising hydrogen gas and sulfur dioxide generated via steam reforming in the vessel.
Dependencies are inferred from the claim text.