Modified steam-methane-reformation: Hydrogen production with carbon sequestration
First Claim
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1. A process to sequester carbon from the fuel burner exhaust gases in industrial hydrogen production plants comprising the steps of:
- (a) burning a mixture of an oxidant and fuel;
(b) generating flue gas and products of combustion;
(c) streaming the generated flue gas and the products of combustion into a first reactor;
(d) determining an amount of thermal energy needed from the fuel to produce hydrogen in a balanced steam-fuel-reformation reaction;
(e) adding the determined amount of fuel and water to produce hydrogen;
(f) passing all products of the reaction to a second reactor; and
(g) combining the products with sodium hydroxide to react at a low temperature to form sodium carbonate.
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Abstract
A process of and system for sequestering carbon (CO2) produced in coal and gas burning hydrogen production plants, resulting in the production of hydrogen at current market prices or less without carbon emission.
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Citations
16 Claims
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1. A process to sequester carbon from the fuel burner exhaust gases in industrial hydrogen production plants comprising the steps of:
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(a) burning a mixture of an oxidant and fuel; (b) generating flue gas and products of combustion; (c) streaming the generated flue gas and the products of combustion into a first reactor; (d) determining an amount of thermal energy needed from the fuel to produce hydrogen in a balanced steam-fuel-reformation reaction; (e) adding the determined amount of fuel and water to produce hydrogen; (f) passing all products of the reaction to a second reactor; and (g) combining the products with sodium hydroxide to react at a low temperature to form sodium carbonate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. In all previous claims, the process to sequester carbon further comprising the step of selling reaction products selected from sodium carbonate, sodium bicarbonate, hydrogen, nitrogen, and combination thereof.
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14. In all previous claims, the process to sequester carbon further comprising the step of selling energy produced from the combining the reaction products of step (e) with sodium hydroxide.
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15. A process to sequester carbon from the fuel burner exhaust gases in industrial hydrogen production plants comprising the steps of:
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(a) burning a mixture of atmospheric air or oxygen and natural gas or coal; (b) generating flue gas and products of combustion, comprising mainly carbon dioxide; (c) streaming the generated flue gas and the products of combustion into a first reactor; (d) determining an amount of thermal energy needed from the fuel to produce hydrogen in a balanced steam-fuel-reformation reaction; (e) adding the determined amount of fuel and water to produce hydrogen, comprising a direct conversion of NaOH to Na2CO3; (f) passing all products of the reaction to a second reactor; (g) combining the products with sodium hydroxide to react at a low temperature to form sodium carbonate; and (h) crystallizing impurities by combining such impurities with soda and then removing them.
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16. A system for sequestering carbon from the fuel burner exhaust gases in industrial hydrogen production plants comprising:
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(a) a burner for combusting a mixture of an oxidant and fuel and generating flue gas and products of combustion; (b) a first feeder to stream the generated flue gas and the products of combustion into a first reactor; (c) wherein the first feeder is in communication with the burner to produce hydrogen in a balanced steam-fuel-reformation reaction; (d) a second feeder to pass all products of the reaction to a second reactor; and (e) wherein the second reactor is for combining the first reactor products with sodium hydroxide to form sodium carbonate.
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Specification