Removing carbon dioxide from waste streams through co-generation of carbonate and/or bicarbonate minerals

A method of sequestering carbon dioxide produced by a source and contained in a gas stream, comprising the steps of:

• (a) obtaining a hydroxide in an aqueous mixture;
• (b) admixing the hydroxide with carbon dioxide produced by the source to produce bicarbonate products or a combination of carbonate and bicarbonate products in an admixture;
• and
• (c) separating said products from the admixture, thereby sequestering the carbon dioxide in a mineral product form;
• wherein obtaining the hydroxide comprises:
• obtaining a group-1 or group-2 salt;
• admixing the salt with acid and water, acid and steam, or acid, water, and steam to produce a protonated brine solution;
• and
• electrolyzing the protonated brine solution to produce a hydroxide using diaphragm, mercury, or membrane cells;
• wherein step (b) comprises altering the product equilibrium to favor the production of bicarbonate products.

A method of sequestering carbon dioxide produced by a source and contained in a gas stream, comprising the steps of:

• (a) obtaining a hydroxide in an aqueous mixture;
• (b) admixing the hydroxide with carbon dioxide produced by the source to produce bicarbonate products or a combination of carbonate and bicarbonate products in an admixture;
• and
• (c) separating said products from the admixture, thereby sequestering the carbon dioxide in a mineral product form;
• wherein obtaining the hydroxide comprises:
• obtaining a group-1 or group-2 salt;
• admixing the salt with acid and water, acid and steam, or acid, water, and steam to produce a protonated brine solution;
• and
• electrolyzing the protonated brine solution to produce a hydroxide and hydrogen gas;
• wherein step (b) comprises altering the product equilibrium to favor the production of bicarbonate products;
• wherein the hydrogen gas is traded or sold.

A method of sequestering carbon dioxide produced by a source and contained in a gas stream, comprising the steps of:

• (a) obtaining a hydroxide in an aqueous mixture;
• (b) admixing the hydroxide with carbon dioxide produced by the source to produce bicarbonate products or a combination of carbonate and bicarbonate products in an admixture;
• and
• (c) separating said products from the admixture, thereby sequestering the carbon dioxide in a mineral product form;
• wherein obtaining the hydroxide comprises:
• obtaining a group-1 or group-2 salt;
• admixing the salt with acid and water, acid and steam, or acid, water, and steam to produce a protonated brine solution;
• and
• electrolyzing the protonated brine solution to produce a hydroxide;
• wherein step (b) comprises altering the product equilibrium to favor the production of bicarbonate products;
• wherein a quantity of power is required to perform steps (a)-(c), and that power is produced by one or more non-greenhouse-gas emitting power sources.