Back to results
US 11,994,061 B2Granted
Methods for reforming ammonia
AssigneeAMOGY Inc.
InventorsYoung Suk Jo, Hyunho Kim, Gregory Robert Johnson, Matthew Jacob Montgomery
Life of this patent
Estimating the term…
Abstract
The present disclosure provides systems and methods for processing ammonia. The system may comprise one or more reactor modules configured to generate hydrogen from a source material comprising ammonia. The hydrogen generated by the one or more reactor modules may be used to provide additional heating of the reactor modules (e.g., via combustion of the hydrogen), or may be provided to one or more fuel cells for the generation of electrical energy.
Claims30
A method of initiating an ammonia decomposition system, comprising:
- a. heating at least one electrical heater to heat one or more electrically-heated reactors of one or more reactors to a first target temperature range, wherein the one or more electrically-heated reactors comprise one or more catalysts, wherein the at least one electrical heater is in thermal communication with the one or more catalysts of the one or more electrically-heated reactors,
- b. providing ammonia (NH3) to the one or more electrically-heated reactors from one or more storage tanks, wherein the one or more storage tanks are in fluid communication with the one or more electrically-heated reactors;
- c. decomposing the NH3 at the first target temperature range using the one or more electrically-heated reactors to produce a fuel comprising hydrogen (H2) and nitrogen (N2);
- d. heating at least one combustion heater by combusting at least part of the fuel produced in (c) to heat one or more combustion-heated reactors of the one or more reactors to a second target temperature range, wherein the one or more combustion-heated reactors comprise one or more catalysts, wherein the at least one combustion heater is in thermal communication with the one or more catalysts of the one or more combustion-heated reactors;
- e. providing additional NH3 to the one or more combustion-heated reactors;
- f. decomposing the additional NH3 using the one or more combustion-heated reactors to generate additional fuel comprising H2 and N2;
- and
- g. combusting less than about 30% of the H2 in the fuel and the additional fuel in the at least one combustion heater to maintain a temperature of the one or more combustion-heated reactors within the second target temperature range.
5 more elements
A method of initiating an ammonia decomposition system, comprising:
- a. heating at least one electrical heater to heat one or more electrically-heated reactors of one or more reactors to a first target temperature range, wherein the one or more electrically-heated reactors comprise one or more catalysts, wherein the at least one electrical heater is in thermal communication with the one or more catalysts of the one or more electrically-heated reactors,
- b. providing ammonia (NH3) to the one or more electrically-heated reactors from one or more storage tanks, wherein the one or more storage tanks are in fluid communication with the one or more electrically-heated reactors;
- c. decomposing the NH3 at the first target temperature range using the one or more electrically-heated reactors to produce a fuel comprising hydrogen (H2) and nitrogen (N2);
- d. heating at least one combustion heater by combusting at least part of the fuel produced in (c) to heat one or more combustion-heated reactors of the one or more reactors to a second target temperature range, wherein the one or more combustion-heated reactors comprise one or more catalysts, wherein the at least one combustion heater is in thermal communication with the one or more catalysts of the one or more combustion-heated reactors;
- e. providing additional NH3 to the one or more combustion-heated reactors;
- f. decomposing the additional NH3 using the one or more combustion-heated reactors to generate additional fuel comprising H2 and N2;
- g. using a fuel cell to consume a first fraction of the H2 in the fuel and the additional fuel to generate electricity;
- and
- h. in response to detecting a fault, reducing or shutting down electricity generation from the fuel cell,
- wherein the fault comprises an NH3 concentration being greater than a predetermined threshold concentration, wherein the NH3 concentration is measured in at least one of (i) one or more adsorbents configured to remove a portion of ammonia that is not decomposed in the one or more reactors, or (ii) the fuel cell.
7 more elements
Dependencies are inferred from the claim text.