Technical Writer. Pelletization is an agglomeration process whereby material fines are “grown” through a tumbling motion in the presence of a liquid binder or water. While all agglomeration processes can be customized to suit the unique needs of the material being processed, in general, it follows these sequential steps: Granulation as well as pelletization both follows the process of agglomeration, but vary a little in case of former. Agglomerates formed are irregular and 20-50% porous, whereas pellets are uniform in shape and are less porous 7,8 . The formation of granules from finely divided solids in liquid suspension in the presence of a small amount of a second immiscible liquid, which preferentially wets the solid, is known as spherical agglomeration (Fl). In this review the terms granulation, balling, pelletization, and agglomeration are used interchangeably in the appropriate context. typical granulation, the foremost completely studied, most classified Pellatization method, that involves a rotating drum, a pan or a disc, has been divided into 3 consecutive regions: nucleation If the application presents special demands in terms of grain roundness and grain spectrum, then the granules can be manufactured in a combination mixer/disk pelletizer. To do this, fine granules are produced in the mixer and then used as pellet feed. The pre-granulated pellet feed already has the correct moisture and immediately starts rolling The pelletization process is the primary consumer of binders in the iron ore industry. The selection of an appropriate binder type and dosage is of critical importance in producing good quality pellets at a reasonable price. Binders accomplish two very important functions in iron ore pelletization: •. The methods used for Pelletization are essentially the same as the granulation methods. The most widely used processes are extrusion and spheronization and solution or suspension layering, and Also, a new vision about the future development of the pelletization process is introduced. 2. Pellets production. Pelletization, briquetting, extrusion, and tumble are the different types of biomass densification [66]. Pelleting can be performed either by using a uniaxial piston-cylinder unit to produce single pellets or a pellet mill that sZyOO.

difference between granulation and pelletization