Method and apparatus for making carbon nanomaterials and methods using low-lithium electrolytes

Patent metadata

Field	Value
Publication number	US-2025073629-A1
Application number	US-202418812169-A
Country	US
Kind code	A1
Filing date	Aug 22, 2024
Priority date	Sep 1, 2023
Publication date	Mar 6, 2025
Grant date	—

Abstract

The embodiments of the present disclosure relate to a method and compounds for capturing and releasing carbon dioxide. The method comprises heating, and/or pressurizing, or electrolyzing a carbon capture compound that comprises beryllium in order to reduce a carbon dioxide content of a carbon dioxide containing gas.

First claim

We claim:

1 . A method for capturing and releasing carbon dioxide comprising:
(a) heating a beryllium carbonate containing compound to form a lower carbon dioxide content compound and releasing a first carbon dioxide containing gas; (b) cooling the lower carbon dioxide content compound in a presence of a second carbon dioxide containing gas to reform the beryllium carbonate containing compound; (c) cycling steps b and c to capture carbon dioxide from the second carbon dioxide containing gas,
wherein the first carbon dioxide containing gas has a higher carbon dioxide content than the second carbon dioxide containing gas.

2 . The method of claim 1 , wherein the beryllium carbonate containing compound comprises (BeO) x ·(BeCO 3 ) y wherein x is 0 or higher than 0 and wherein y is greater than 0.

3 . The method of claim 1 , wherein the beryllium carbonate containing compound comprises an alkali carbonate, an alkali earth carbonate or any combination thereof.

4 . The method of claim 1 , wherein the beryllium carbonate containing compound comprises a salt that comprises one or more elements from column 4, 5, 6 or 7 from the periodic table of elements.

5 . The method of claim 1 , wherein the beryllium carbonate containing compound is a binary, ternary, quaternary or higher component mix of beryllium carbonate or beryllium oxide with at least one of an alkali carbonate, an alkali earth carbonate, or a salt that comprises an element from column 4, 5, 6 or 7 of the table of periodic elements.

6 . A method for capturing and releasing carbon dioxide comprising:
(a) depressuring a beryllium carbonate containing compound to form a lower carbon dioxide content compound and release a first carbon dioxide containing gas; (b) pressurizing the lower carbon dioxide content compound in the presence of a second carbon dioxide containing gas to reform the beryllium carbonate containing compound; and (c) cycling steps b and c to capture carbon dioxide from a carbon dioxide containing gas, wherein the first carbon dioxide containing gas has a higher carbon dioxide content than the second carbon dioxide containing gas.

7 . The method of claim 6 , wherein the beryllium carbonate containing compound comprises xBeO·y(BeCO 3 ) wherein x is 0 or higher than 0 and wherein y is greater than 0.

8 . The method of claim 6 , wherein the beryllium carbonate containing compound comprises an alkali carbonate, an alkali earth carbonate or any combination thereof.

9 . The method of claim 6 , wherein the beryllium carbonate containing compound comprises a salt that comprises one or more elements from column 4, 5, 6 or 7 of the periodic table of elements.

10 . The method of claim 6 , wherein the beryllium carbonate containing compound is a binary, ternary, quaternary or higher component mix of beryllium carbonate or beryllium oxide with at least one of an alkali carbonate, an alkali earth carbonate, or a salt that comprises an element from column 4, 5, 6 or 7 of the table of periodic elements.

11 . A method for capturing and releasing carbon dioxide comprising:
(a) depressuring and heating a beryllium carbonate containing compound to form a lower carbon dioxide content compound and releasing a first carbon dioxide containing gas; (b) pressuring and cooling the lower carbon dioxide content compound in a presence of a second carbon dioxide containing gas to reform the beryllium carbonate containing compound; (c) cycling steps b and c to capture carbon dioxide from the second carbon dioxide containing gas, wherein the first carbon dioxide containing gas has a higher carbon dioxide content than the second carbon dioxide containing gas.

12 . The method of claim 11 , wherein the beryllium carbonate containing compound comprises xBeO·y(BeCO 3 ) wherein x is 0 or higher than 0 and wherein y is greater than 0.

13 . The method of claim 11 , wherein the beryllium carbonate containing compound comprises an alkali carbonate, an alkali earth carbonate or any combination thereof.

14 . The method of claim 11 , wherein the beryllium carbonate containing compound comprises a salt that comprises one or more elements from column 4, 5, 6 or 7 from the periodic table of elements.

15 . The method of claim 11 , wherein the beryllium carbonate containing compound is a binary, ternary, quaternary or higher component mix of beryllium carbonate or beryllium oxide with at least one of an alkali carbonate, an alkali earth carbonate, or a salt that comprises an element from column 4, 5, 6 or 7 of the table of periodic elements.

16 . A method for producing a graphene nanocarbon (GNC) product comprising:
(a) heating an electrolyte comprising a beryllium salt to obtain a molten carbonate electrolyte; (b) positioning the molten carbonate electrolyte between an anode and a cathode in an electrolytic cell; (c) applying an electrical current to the cathode and the anode in the electrolytic cell; and, (d) collecting a carbon nanomaterial (GNC) product from the cathode.

17 . The method of claim 16 , wherein the beryllium salt comprises beryllium carbonate, beryllium oxide, beryllium borate, a combination of a beryllium salt and a boron containing salt, or any combination thereof.

18 . The method of claim 16 , further comprising a step of employing one or more GNC facilitation elements, wherein the one or more GNC facilitation elements are: (i) adding an alternative salt, wherein the alternative salt is an alkali or alkaline earth salt, or a salt that comprises an element from column 4, 5, 6 or 7 of the table of periodic elements. or any combination thereof, (ii) enhancing transition metal nucleation, iii) adding one or more defect inducing agents, (iv) reducing or removing an electrolyte conductivity impediment element, and (v) any combination thereof.

19 . The method of claim 16 , further comprising a step of introducing a nanomaterial selection component in the electrolytic cell comprising electrolysis current density, or electrolysis temperature, or electrolysis time, or electrolyte composition, or anode or electrode composition or structure or shape, or dopant or defect agent, or combination of any thereof, wherein the nanomaterial selection component selects for the GNC product to comprise a carbon nanotube (CNT) product, carbon nanofiber product, a graphene product, solid carbon nano-onion product or a hollow carbon nano-onion product a conical CNF, nano-bamboo, nano-pearl, Ni-coated CNT, nano-flower, nano-dragon, nano-rod, nano-belt, nano-tree, or nano-scaffold, or nano-helices product, or a combination thereof.

20 . The method of claim 17 , wherein the beryllium carbonate electrolyte is one of a binary mixture, a ternary, a quaternary, a quinary mixture, a senary mixture, or a mixture of greater than 6 components.

Assignees

• C2Cnt Llc

Inventors

• Licht Gad
• Licht Stuart

Classifications

• C25B1/00

  Electrolytic production of inorganic compounds or non-metals · CPC title

• B01D53/00 Primary

  Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols, (recovery of volatile solvents by condensation B01D5/00; sublimation B01D7/00; cold traps, cold baffles B01D8/00; working-up undefined gaseous mixtures obtained by cracking hydrocarbon oils C10G70/00; cleaning coal gas C10K; working-up of natural gas, or synthetic natural gas, C10L3/10; separation of difficult-to-condense gases or air by liquefaction F25J; for investigating materials G01N30/00) · CPC title

• C25B1/135

  Carbon · CPC title

• C25D21/02

  Heating or cooling · CPC title

• C25D9/08

  by cathodic processes · CPC title