Indirect and direct method of sequestering contaminates
First Claim
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1. A method of sequestering gas phase molecules in a plurality of sequestration modules, comprising the steps of:
- forming a plurality of flat liquid jets in the plurality of sequestration modules each module arranged substantially adjacent to each other, each of said flat liquid jets comprising a portion including a coalesced structure such that each jet includes a width, thickness and height of an aqueous slurry solution, said plurality of flat liquid jets arranged in substantially parallel planes;
providing a gas with gas phase molecules in an orientation that allows a portion of the gas to flow between two or more of the substantially parallel planes of the flat liquid jets such that the jets retain their coalesced structure; and
mineralizing at least a portion of the gas phase molecules by mass transfer interaction between the gas phase molecules and the aqueous slurry solution, wherein the mineralizing is conducted at a pressure of less than about 100 psig.
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Abstract
The invention generally relates to a method for sequestration contaminates. More particularly, the invention relates to a significant performance enhancement over existing mineral carbonation processes through the use of a high mass transfer system and an efficient pH swing reaction. More particularly, aspects of the invention are directed to direct and indirect methods of sequestering contaminates.
150 Citations
39 Claims
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1. A method of sequestering gas phase molecules in a plurality of sequestration modules, comprising the steps of:
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forming a plurality of flat liquid jets in the plurality of sequestration modules each module arranged substantially adjacent to each other, each of said flat liquid jets comprising a portion including a coalesced structure such that each jet includes a width, thickness and height of an aqueous slurry solution, said plurality of flat liquid jets arranged in substantially parallel planes; providing a gas with gas phase molecules in an orientation that allows a portion of the gas to flow between two or more of the substantially parallel planes of the flat liquid jets such that the jets retain their coalesced structure; and mineralizing at least a portion of the gas phase molecules by mass transfer interaction between the gas phase molecules and the aqueous slurry solution, wherein the mineralizing is conducted at a pressure of less than about 100 psig. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method of sequestering gas phase molecules, comprising the steps of:
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forming a plurality of liquid jets in a gas liquid contactor, each of said liquid jets comprising a planar sheet of an aqueous solution comprising piperazine and an acid, said plurality of liquid jets arranged in substantially parallel planes; providing a flue gas with gas phase molecules to the gas liquid contactor; reacting at least a portion of the gas phase molecules by mass transfer interaction between the gas phase molecules and the planar sheet of aqueous solution to form a reacted composition; and mineralizing at least a portion of the reacted composition to form carbonates, wherein the mineralizing is conducted at a pressure of less than about 100 psig. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A method of direct sequestering carbon dioxide gas phase molecules from a flue gas of a coal fired plant with a plurality of different sequestration modules, comprising the steps of:
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forming a plurality of essentially planar liquid jets in the plurality of different sequestration modules, each of said liquid jets comprising a planar sheet of an aqueous slurry solution, said plurality of liquid jets arranged in substantially parallel planes in each of the plurality of modules, wherein the aqueous slurry solution comprises at least one of Ca(OH)2 and Mg(OH)2 in a range of about 5% (w/w) to about 10% (w/w); providing the flue gas with the carbon dioxide gas phase molecules in a cross flow orientation between two or more of the plurality of liquid jets in each of the plurality of sequestration modules; and mineralizing at least a portion of the carbon dioxide gas phase molecules by mass transfer interaction between the carbon dioxide gas molecules and the aqueous slurry solution, wherein the mineralizing is conducted at a pressure of less than about 100 psig.
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Specification