Abstract: A system for effecting the pretreatment therewith of a sorbent comprising a conveying line (105), such as a pipe, and a plurality of solution nozzles operative for purposes of introducing a solution to treat the sorbent. More particularly, the conveying line (105) includes an inlet (107), an outlet (109), and an inner surface (105a) that is operative to define a passageway (190) through which sorbent particles are capable of being transported between the inlet (107) of the conveying line (105) and the outlet (109) of the conveying line (105).

Abstract: A system for effecting the pretreatment therewith of a sorbent comprising a conveying line (105), such as a pipe, and a plurality of solution nozzles operative for purposes of introducing a solution to treat the sorbent. More particularly, the conveying line (105) includes an inlet (107), an outlet (109), and an inner surface (105a) that is operative to define a passageway (190) through which sorbent particles are capable of being transported between the inlet (107) of the conveying line (105) and the outlet (109) of the conveying line (105).

Abstract: A sorbent conditioning and feed apparatus for a circulating fluidized bed combustion system includes a dryer apparatus configured to dry unprocessed sorbent material transported thereto from a raw storage container; a sorbent crushing device configured to reduce the particle size of dried sorbent material discharged from the dryer apparatus; and a circulating fluidized bed (CFB) boiler configured to receive processed sorbent material conveyed from the sorbent crushing device; wherein the dryer apparatus utilizes an untempered hot air source diverted directly from a primary air stream input to the circulating fluidized bed boiler.

Abstract: A sorbent conditioning and direct feed apparatus is provided for direct feeding of a conditioned solid sorbent to a combustor 12. The sorbent conditioning and direct feed apparatus includes raw solid sorbent storages means 102, particle size reducing means 112 for reducing the particle size of solid sorbent supplied thereto from a relatively larger coarse particle size to a relatively smaller fine particle size, metering means 108 for metering the supply of raw solid sorbent from the raw solid sorbent storage means to the particle size reducing means 112, and transport means 118 for transporting solid sorbent which has been conditioned by the particle size reducing means 112 to the combustor 12, whereby conditioned solid sorbent is fed to the combustor 12 without any intermediate storage of the solid sorbent between the raw solid sorbent storage means 102 and the transport means 118.

Abstract: A sorbent conditioning and direct feed apparatus is provided for direct feeding of a conditioned solid sorbent to a combustor 12. The sorbent conditioning and direct feed apparatus includes raw solid sorbent storage means 102, particle size reducing means 112 for reducing the particle size of solid sorbent supplied thereto from a relatively larger coarse particle size to a relatively smaller fine particle size, metering means 108 for metering the supply of raw solid sorbent from the raw solid sorbent storage means to the particle size reducing means 112, and transport means 118 for transporting solid sorbent which has been conditioned by the particle size reducing means 112 to the combustor 12, whereby conditioned solid sorbent is fed to the combustor 12 without any intermediate storage of the solid sorbent between the raw solid sorbent storage means 102 and the transport means 118.

Abstract: The present invention provides, according to one aspect thereof, a computer controlled process for reducing SO2 from a flue gas. The process includes the basic steps of providing an aqueous treatment solution containing an inorganic salt and a control unit for controlling the introduction of the aqueous treatment solution containing an inorganic salt and controlling the control unit in response to a computer program to effect introduction of the aqueous treatment solution into contact with alkaline earth material. Thereafter, the process includes heating the alkaline earth material in the presence of the flue gas containing SO2 to remove the SO2. The alkaline earth material may be limestone or dolomite. The inorganic salt is selected from the group consisting of thermally decomposable sodium compounds including sodium carbonate, sodium bicarbonate, sodium hydroxide, sodium nitrate, and sodium acetate.

Abstract: An energy-efficient grinding roll for employment in a pulverizer operative for effecting the pulverization of solid material therein. The energy-efficient grinding roll includes a body portion formed of a first type of material, an external surface formed of a second type of material, and tread-like means of preestablished dimensions and preestablished spacing provide on the external surface such that the energy-efficient grinding roll is capable of achieving as much as a 15% reduction in the energy required to pulverize solid material when compared with the use of standard grinding rolls.

Abstract: A method of separating unburned Carbon, as particulate matter, from the flyash produced as a result of the combustion process occurring in a pulverized-coal fired steam generating power plant is disclosed. More particularly the invention separates the flyash into a coarse product group and a fine product group by utilizing the differences in specific gravity between the Carbon particles and remaining flyash as well as utilization of the dynamic classification characteristics of a rotary classifier to effect the separation whereby at least one of the two product groups comprises a relatively low weight percentage of unburned Carbon while yet comprising a relatively high percentage of the total mass of product recovered after separation.