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One promising method for the capture of CO 2 from point sources is through the usage of a lime-based sorbent. Lime (CaO) acts as a CO 2 carrier, absorbing CO 2 from the flue gas (carbonation) and releasing it in a separate reactor (calcination) to create a pure stream of CO 2 suitable for sequestration. One of the challenges with this process is the decay in calcium...
Limestone particle attrition was investigated in a small circulating fluidized bed reactor at temperatures from 25 to 850°C, 1atm pressure and superficial gas velocities from 4.8 to 6.2m/s. The effects of operating time, superficial gas velocity and temperature were studied with fresh limestone. No calcination or sulfation occurred at temperatures ⩽580°C, whereas calcination and sulfation affected...
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