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US 2024/0150189 A1Published application
Methods and systems for efficiently and cleanly manufacturing ammonia, ammonium sulfate, nitric acid, ammonium nitrate, or combinations thereof from coal and petcoke products
AssigneeDecarbtek Global Corp.
InventorsHenry Gil, Andrew Squires
Life of this patent
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Abstract
The disclosure relates generally to methods and systems for manufacturing ammonia, ammonium sulfate, nitric acid, ammonium nitrate, or combinations thereof, and particularly to clean and efficient methods and system configurations for manufacturing ammonia, ammonium sulfate, nitric acid, ammonium nitrate, or combinations thereof using coal, petcoke, asphaltenes and/or hydrocarbon waste products.
Claims26
A method comprising:
- contacting coal, petcoke, or both with water to form a fuel slurry;
- contacting one or more surfactant polymers with water to form a surfactant slurry;
- mixing the fuel slurry and the surfactant slurry to form a fuel emulsion;
- and
- providing the fuel emulsion to a gasifier to produce a synthesis gas comprising carbon monoxide, carbon dioxide, and sulfur.
2 more elements
A method, comprising:
- removing impurities from a synthesis gas by inputting the synthesis gas into a pressure swing adsorber to form a substantially pure hydrogen gas, wherein the impurities comprise noble gases, oxygen, nitrogen, carbon dioxide, carbon monoxide, or combinations thereof,
- contacting the hydrogen gas with nitrogen to form a hydrogen and nitrogen gas blend, wherein the gas blend comprises a hydrogen to nitrogen, wherein the gas blend comprises a 3:1 hydrogen to nitrogen ratio;
- and
- producing ammonia from the gas blend.
1 more element
A method, comprising:
- contacting hydrogen sulfide gas with ionized molten sulfur in a combustor furnace to form sulfur dioxide;
- and
- contacting sulfur dioxide and aqueous ammonia in an aqueous ammonia wash reactor to form ammonia sulfate.
A method, comprising:
- inputting water into a flooded tube chiller filled with liquid ammonia to form cooled water, wherein the liquid ammonia evaporates into an ammonia gas;
- generating a lower pressure ammonia by superheating the ammonia gas at a near constant pressure and expanding the ammonia gas through a turboexpander;
- contacting the lower pressure ammonia with water in an exothermic absorber to form an ammonia water mixture at pressure and temperature;
- pumping the ammonia water mixture from the exothermic absorber to form a higher pressure ammonia prior to entering into an ammonia regenerator, and
- inputting the higher pressure ammonia gas, output from the ammonia regenerator, through a turboexpander to form liquid ammonia for use in the flooded tube chiller.
2 more elements
A system, comprising:
- a feed preparation unit to form a fuel emulsion from a surfactant, coal, petcoke, hydrocarbon oil wastes, and water;
- a gasifier to form synthesis gas from the fuel emulsion;
- a pressure swing adsorber unit to remove impurities from the synthesis gas and form a hydrogen and nitrogen gas blend;
- an ammonia synthesis unit to synthesize ammonia from the hydrogen and nitrogen gas blend;
- a cryogenic system to cryogenically capture carbon dioxide from the pressure swing adsorber unit.
2 more elements
Dependencies are inferred from the claim text.