Back to results
US 12,559,365 B2Granted
Systems and methods to produce hydrogen gas from hydrogen sulfide
AssigneeSaudi Arabian Oil Company
InventorsHassan A. Aljama, Ali A. Almofleh
Life of this patent
Estimating the term…
Abstract
The disclosure relates to systems and methods to produce hydrogen (H2) gas from hydrogen sulfide (H2S). H2S is contacted with a catalyst to form H2 gas and sulfur adsorbed to the catalyst. The adsorbed sulfur is contacted with oxygen (O2) gas to convert the adsorbed sulfur to sulfur dioxide (SO2) and regenerate the catalyst.
Claims20
A system comprising:
- a first reactor comprising:
- a first catalyst configured to catalyze the conversion of hydrogen sulfide to hydrogen gas and sulfur;
- a first gas inlet comprising a valve;
- and
- a second gas inlet comprising a valve;
- a second reactor comprising:
- a second catalyst configured to catalyze the conversion of hydrogen sulfide to hydrogen gas and sulfur;
- a first gas inlet comprising a valve;
- and
- a second gas inlet comprising a valve;
- a hydrogen sulfide source;
- and
- an oxygen gas source;
- wherein:
- in a first configuration of the system:
- the valve of the first gas inlet of the first reactor is open so that the hydrogen sulfide source is in fluid communication with an interior of the first reactor;
- the valve of the second gas inlet of the first reactor is closed so that the oxygen gas source is in not fluid communication with an interior of the first reactor;
- the valve of the first gas inlet of the second reactor is closed so that the hydrogen sulfide source is not in fluid communication with an interior of the second reactor;
- and
- the valve of the second gas inlet of the second reactor is open so that the oxygen gas source is in fluid communication with an interior of the second reactor;
- and
- in a second configuration of the system:
- the valve of the first gas inlet of the first reactor is closed so that the hydrogen sulfide source is not in fluid communication with an interior of the first reactor;
- the valve of the second gas inlet of the first reactor is open so that the oxygen gas source is in fluid communication with an interior of the first reactor;
- the valve of the first gas inlet of the second reactor is open so that the hydrogen sulfide source is in fluid communication with an interior of the second reactor;
- and
- the valve of the second gas inlet of the second reactor is closed so that the oxygen gas source is not in fluid communication with an interior of the second reactor.
24 more elements
Dependencies are inferred from the claim text.