Process of Manufacturing Powdered Coffee Carbons from Spent Coffee Grounds

A process of manufacturing powdered coffee carbons from spent coffee grounds comprising the steps of:

• (A) washing spent coffee grounds with fresh water, dehydrating same, and conveying same to a pre-carbonation oven for drying and pre-carbonization;
• (B) removing the pre-carbonized spent coffee grounds from the pre-carbonization oven, soaking same in a solution mixed with a predetermined quantity of sodium carbonate (Na2CO3) for a predetermined period of time for grease removal, and washing the grease-free spent coffee grounds with fresh water;
• (C) pouring the pre-carbonized spent coffee grounds into a post-carbonization oven and heating the pre-carbonized spent coffee grounds to a range of 600 to 650° C. to carbonize the pre-carbonized spent coffee grounds wherein carbonized spent coffee grounds have a porous structure;
• (D) supplying saturated steam of 850 to 950° C. to the carbonized spent coffee carbons for activation;
• and
• (E) operating a wet global grinder to grind the activated spent coffee carbons until powdered coffee carbons having a size between 0.1 and 20 μm are obtained.