Systems, methods and materials for hydrogen sulfide conversion
AssigneeOhio State Innovation Foundation
InventorsLiang-Shih Fan, Sourabh G. Nadgouda, Kalyani V. Jangam
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Abstract
Systems and methods use bimetallic alloy particles for converting hydrogen sulfide (H2S) to hydrogen (H2) and sulfur (S), typically during multiple operations. In a first operation, metal alloy composite particles can be converted to a composite metal sulfide. In a second operation, composite metal sulfide from the first operation can be regenerated back to the metal alloy composite particle using an inert gas stream. Pure, or substantially pure, sulfur can also be generated during the second operation.
Claims20
A method of operating a reactor system comprising a first reactor and a second reactor, the method comprising:
- converting hydrogen sulfide (H2S) to hydrogen gas (H2) and sulfur gas (S) in the reactor system operating as a batch operation, a semi-batch operation, or a continuous operation, the converting comprising:
- conducting a sulfidation reaction by contacting metal alloy particles with a hydrogen sulfide (H2S) input stream within the first reactor, thereby generating hydrogen gas (H2) and one or more sulfide minerals;
- and
- conducting a regeneration reaction within the second reactor.
A metal alloy particle for converting hydrogen sulfide (H2S) to hydrogen gas (H2) and sulfur gas (S), the metal alloy particles comprising a first metal component, a second metal component, and one or more secondary material,
- wherein the first metal component is selected from a group that consists of iron (Fe), chromium (Cr), nickel (Ni), zinc (Zn), cobalt (Co), manganese (Mn), and copper (Cu);
- wherein the second metal component is selected from a group that consists of iron (Fe), chromium (Cr), nickel (Ni), zinc (Zn), cobalt (Co), manganese (Mn), and copper (Cu);
- and
- wherein the at least one secondary material is a sulfide or a metal oxide;
- and
- wherein the first metal component and the second metal component are uniformly dispersed within the metal alloy particles.
Dependencies are inferred from the claim text.