Process for producing a mixed filler
OwnerBrian MUELLER, Walter SHERWOOD +1inventors
InventorsBrian MUELLER, Walter SHERWOOD, William Easter
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Abstract
Various embodiments provide an integrated carbon capture, utilization and storage (CCUS) process that can convert CO2 to Group 2 carbonates and subsequent encapsulation and sequestration process to convert the carbonates to commercially useful aggregate, useful in plastics, building materials, mineral boards, concrete and road materials and make a feedstock of water useful for carbon neutral or carbon negative chloralkali and green hydrogen manufacture.
Claims29
A method comprising:
- obtaining a solids product from produced water, the solids product comprising at least one carbonate of a Group 2 alkaline earth metal;
- mixing the solids product with a siloxane resin to produce a reaction mixture;
- forming the reaction mixture to produce a preform;
- and
- heating the preform to cure the siloxane resin.
A method of removing carbon dioxide from a gas stream comprising the steps of
- a. obtaining an aqueous geological solution contain one or more group 2 divalent cations;
- b. admixing a group 1 hydroxide base with the aqueous geological solution to raise the pH to 9 or greater and maintain pH throughout the process;
- c. admixing a gas stream with the product of (b) containing carbon dioxide to form solid group 2 hydroxides and carbonates;
- d. removing the solids that are formed from the solution;
- e. drying the solids;
- f. grinding the solids;
- g. admixing the solids with a siloxane resin to produce a reaction mixture;
- h. forming the reaction mixture to produce a preform;
- and
- i. heating the preform to cure the siloxane resin.
The method of any of claims 15-28, where the solids are removed and washed with water.
A method of removing carbon dioxide from a gas stream comprising the steps of
- a. obtaining an aqueous geological solution containing one or more group 2 divalent cations
- b. admixing with the aqueous geological solution from (a) a group 1 hydroxide solution between 5 and 15 weight % alkali hydroxide with a gas stream containing carbon dioxide;
- c. admixing the solution from (b) with the aqueous geological solution (a) to achieve a pH greater than 9;
- d. removing the solids that are formed from (c);
- e. drying the solids;
- f. grinding the solids;
- g. admixing the solids with a siloxane resin to produce a reaction mixture;
- h. forming the reaction mixture to produce a preform;
- and
- i. heating the preform to cure the siloxane resin.
Dependencies are inferred from the claim text.