Sodium bicarbonate production

A method for the production of sodium bicarbonate, the method comprising the steps of:

• a. treating a carbonaceous feedstock to form a product stream comprising up to 10 v/v % carbon dioxide;
• b. capturing at least a portion of the carbon dioxide from the product stream to form a carbon dioxide stream;
• c. feeding the carbon dioxide stream to a reaction vessel;
• d. feeding an aqueous sodium carbonate solution to the reaction vessel;
• e. contacting at least a portion of the carbon dioxide stream with at least a portion of the aqueous sodium carbonate solution to form a slurry comprising solid sodium bicarbonate;
• f. separating the solid component of the slurry from the liquid component of the slurry to provide solid sodium bicarbonate and an aqueous liquor;
• wherein capturing at least a portion of the carbon dioxide from the product stream comprises the steps of:
• contacting the product stream with a solvent;
• absorbing carbon dioxide from the product stream into the solvent to form a carbon dioxide enriched solvent;
• and desorbing carbon dioxide from the carbon dioxide enriched solvent to form the carbon dioxide stream.