No
30287.79A
Some Information About The Patent
The production of the present patent ucludes drying carbon-rich fly ash and then mixing the dried fly ash with a binder, such as a polyvinyl acetate emulsion. The binder and the volume of fly ash can be mixed in a hopper by a mechanical stirrer or the like to form a carbonaceous mixture. The carbonaceous mixture can be conveyed from the hopper to the press for pressing the carbonaceous mixture into blocks or briquettes of the carbonaceous sponge-like sorbent. The produced carbonaceous sponge-like sorbent is then dried. The carbonaceous sponge-like sorbent has a high degree of porosity (on the order of 1,200 m2/g), thus forming a carbonaceous “sponge” (i.e., a porous, sponge-like structure) with a high degree of permeability.
Benefits
1. The present patent can be used instead of traditional activated coconut charcoal for sorption of pollutants from water, especially in tertiary treatment-stations of sewage water. Accordingly, the patent can save millions of dollars consumed to import activated carbon used for these purposes.
2.The patent can use a huge quantities of carbon-rich fly ash waste accumulated in the Kingdom as a waste since this material has about 80% carbon of its origin weight.
3.Using of poly (vinyl acetate) for binding the CRFA particle.
4.Curing this briquetted matrix using infra-red ray.
5.Using central holed vertical piston for briquetting carbonaceous sponge with a novel feature for excluding the sticky briquette sample by air force intact.
6.Overcoming on the technical problem arisen from the fine nature of the carbon richly ash and weakness of the recently compressed samples by excluding them from the vertical mold by air forcing keeping their construction without any distortion.
Images
SEM micrograph of the carbonaceous sponge (1500X)-
SEM micrograph of the carbonaceous sponge (750X)-
Pressing sequence of patent production line
The hydraulic pressing machine used for production of the patent
The central holed vertical piston used for briquetting the patent
SEM micrograph of the carbonaceous sponge (7500X)-
The infrared-drying system used for drying the patent-