Chemical extraction from an aqueous solution and power generator cooling

Patent metadata

Field	Value
Publication number	US-2017341952-A1
Application number	US-201615165205-A
Country	US
Kind code	A1
Filing date	May 26, 2016
Priority date	May 26, 2016
Publication date	Nov 30, 2017
Grant date	—

Abstract

A method of chemical extraction and power generator cooling includes receiving an aqueous solution with dissolved inorganic carbon. The method further includes extracting the dissolved inorganic carbon from the aqueous solution and collecting the dissolved inorganic carbon. The aqueous solution is then acidified and supplied to the power generator to cool the power generator.

First claim

What is claimed is:

1 . A method of chemical extraction and power generator cooling, comprising:
receiving an aqueous solution including dissolved inorganic carbon; extracting dissolved inorganic carbon from the aqueous solution; collecting the dissolved inorganic carbon; acidifying the aqueous solution; and supplying the acidified aqueous solution to the power generator to cool the power generator.

2 . The method of claim 1 , wherein extracting the dissolved inorganic carbon includes acidifying the aqueous solution to desorb CO 2 from the aqueous solution, and wherein the aqueous solution includes seawater.

3 . The method of claim 2 , wherein acidifying the aqueous solution includes adding aqueous HCl to the aqueous solution, wherein the aqueous HCl is supplied by an electrodialysis unit.

4 . The method of claim 3 , wherein the CO 2 is desorbed from the aqueous solution before supplying the acidified aqueous solution to the power generator.

5 . The method of claim 3 , wherein the CO 2 is desorbed from the aqueous solution after supplying the acidified aqueous solution to the power generator.

6 . The method of claim 1 , wherein extracting the dissolved inorganic carbon includes basifying the aqueous solution to precipitate calcium salts from the aqueous solution, wherein the aqueous solution includes seawater.

7 . The method of claim 6 , wherein basifying the aqueous solution includes adding aqueous NaOH to the aqueous solution, wherein the aqueous NaOH is supplied by an electrodialysis unit.

8 . The method of claim 7 , wherein acidifying the aqueous solution includes adding aqueous HCl to the aqueous solution, wherein the aqueous HCl is supplied by an electrodialysis unit.

9 . The method of claim 8 , wherein collecting the dissolved inorganic carbon includes evolving CO 2 from the calcium salts by applying the aqueous HCl to the calcium salts, and collecting the CO 2 .

10 . The method of claim 1 , further comprising adjusting a pH and alkalinity of the acidified aqueous solution after supplying the acidified aqueous solution to the power generator.

11 . The method of claim 1 , wherein the power generator is included in a power plant.

12 . A system of chemical extraction from an aqueous solution, comprising:
an electrodialysis unit coupled to receive aqueous NaCl and coupled to output aqueous HCl and aqueous NaOH; and a carbon desorption unit coupled to receive an aqueous solution including dissolved inorganic carbon and the aqueous HCl from the electrodialysis unit, wherein in response to receiving the aqueous HCl and the aqueous solution, the carbon desorption unit outputs CO 2 and the aqueous solution, and wherein the carbon desorption unit includes a receptacle to couple to a power generator so the aqueous solution flows through the carbon desorption unit and the power generator.

13 . The system of claim 12 , wherein the aqueous solution includes seawater, and wherein the receptacle couples to the power generator so the aqueous solution flows through the carbon desorption unit before flowing though the power generator.

14 . The system of claim 12 , wherein the aqueous solution includes seawater, and wherein the receptacle couples to the power generator so the aqueous solution flows through the carbon desorption unit after flowing though the power generator.

15 . The system of claim 12 , wherein the system is configured to acidify the aqueous solution prior to the aqueous solution flowing through the power generator.

16 . The system of claim 12 , wherein the electrodialysis unit is coupled to adjust a pH and alkalinity of the aqueous solution with the aqueous NaOH after the carbon desorption unit outputs the CO 2 .

17 . A system of chemical extraction from an aqueous solution, comprising:
an electrodialysis unit coupled to receive aqueous NaCl and coupled to output aqueous HCl and aqueous NaOH; and a precipitation unit coupled to receive an aqueous solution including dissolved inorganic carbon and the aqueous NaOH from the electrodialysis unit, wherein in response to receiving the aqueous NaOH and the aqueous solution, the precipitation unit outputs calcium salts and the aqueous solution, and wherein the precipitation unit includes a receptacle to couple to a power generator so the aqueous solution flows through the precipitation unit and the power generator.

18 . The system of claim 17 , further comprising a first acidification unit coupled to receive the aqueous HCl from the electrodialysis unit and the calcium salts from the precipitation unit, wherein in response to receiving the aqueous HCl and the calcium salts, the first acidification unit outputs CO 2 .

19 . The system of claim 17 , further comprising a second acidification unit coupled to receive the aqueous HCl from the electrodialysis unit and the aqueous solution from the precipitation unit, wherein the second acidification unit is configured to be coupled to the power generator, and wherein in response to receiving the aqueous HCl and the aqueous solution the second acidification unit acidifies the aqueous solution.

20 . The system of claim 17 , further comprising a treatment unit coupled to receive the aqueous solution and output aqueous NaCl to the electrodialysis unit, wherein the aqueous solution includes seawater.

21 . The system of claim 17 , wherein the power generator is included in a power plant.

Assignees

• X Dev Llc

Inventors

• Eisaman Matthew D

Classifications

• C02F2103/023

  Water in cooling circuits · CPC title

• B01D61/44

  Ion-selective electrodialysis · CPC title

• C02F2103/08

  Seawater, e.g. for desalination · CPC title

• C02F1/20 Primary

  by degassing, i.e. liberation of dissolved gases (degasification of liquids in general B01D19/00; arrangement of degassing apparatus in boiler feed supply F22D) · CPC title

• C02F2303/22

  Eliminating or preventing deposits, scale removal, scale prevention (C02F1/042, C02F1/4602, C02F5/00 take precedence) · CPC title