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Features and Benefits of KC Cottrell’s Gas Suspension Absorber (GSA) Technology
The lime can be injected either as a slurry, through commercially available two-fluid nozzle atomizers, or as powdered calcium hydroxide. The intense recirculation within the reactor promotes efficient acid gas neutralization, resulting in high removal efficiencies at low lime consumption rates. The nozzles are commercially available and can be changed out on the fly, without impacting scrubbing efficiency. The use of the cyclone to capture and recycle solids from the reactor vessel greatly reduces the demand on the downstream particulate collector. The slim profile of the GSA reactor vessel itself minimizes plan area requirements, which are frequently at a premium in retrofit applications
Revision Date: 3/17/2014
Tags: KC Green Holdings, KC Cottrell, Cyclone, Circulating Dry Scrubber, Gas Suspension Absorber, Screw Conveyor, Dry FGD, Air Quality, Module
Gas Suspension Absorber Technology for Multi-pollutant Control of Boiler Flue Gas Emissions
A recirculating bed dry scrubber technology capable of efficient acid gas control –SO2, HCl, and H2SO4. •Utilizes lime reagent either as dry hydrate or as lime slurry. •Coupled with ESP or FF for control of PMand PM-10 emissions. •Can incorporate ACI for control of Hg and dioxins/furans. •Emissions of HCl, PM, Hg below MACT requirements.
Revision Date: 3/17/2014
Tags: KC Green Holdings, KC Cottrell, Circulating Dry Scrubber, Screw Conveyor, Dry FGD, Gas Suspension Absorber, Cyclone, Air Quality, Module
Gas Suspension Absorber / Description
One of the reasons for the high efficiency of the KC Cottrell GSA is that the reactor has been based on gas suspension technology. This means that a very large concentration of fly ash, dust particles and lime builds up inside the reactor. The concentration is normally 50 to 100 times as high as in a conventional reactor. The effect is further enhanced by the fact that lime, fly ash and by-products are recycled about 100 times in the KC Cottrell GSA system. A short erection period is achieved due to a modular design, offering enormous flexibility. Maintenance costs for the KC Cottrell GSA are extremely low compared to more conventional plants. One reason for this is the minimal wear and tear due to few moving parts and a very simple, uncomplicated and stationary nozzle.
Revision Date: 3/17/2014
Tags: KC Green Holdings, KC Cottrell, Dry FGD, Screw Conveyor, Circulating Dry Scrubber, Cyclone, Gas Suspension Absorber, Module, Air Quality