Characteristics of the CaCO3 Sorbent Particles for In-furnace Desulfurization Process: Effects of Residence Time and Atmospheric Condition
- Characteristics of the CaCO3 Sorbent Particles for In-furnace Desulfurization Process: Effects of Residence Time and Atmospheric Condition
- 이강수; 정재희; 길상인; 이형근; 김상수
- CCS (CO2 capture & Storage); 이산화탄소 포집 및 저장; Calcination; 하소 반응; O2/CO2 Combustion System; 순산소연소 시스템
- Issue Date
- 대한기계학회논문집B; Transactions of the Korean Society of Mechanical Engineers B
- VOL 34, NO 2, 121-127
- In-furnace desulfurization technique is applied to the O2/CO2 combustion system for CCS process because
this combustion system does not need additional chamber for the desulfurzation. The CaCO3 sorbent particles,
which have wide size range from a few nanometers to several tens of micrometers, are used for this process.
In this study, the experimental system which can simulate the O2/CO2 combustion system was developed.
CaCO3 sorbent particles were exposed to the high temperature reactor at 1200℃ with various residence times
(0.33~1.46 sec) in air and CO2 atmospheric conditions, respectively. Then, the sorbent particles were sampled
at inlet and outlet of the reactor and analyzed qualitatively/quantitatively using SMPS, XRD, TGA and SEM.
In a result, it was shown that the residence time and atmospheric condition in a high temperature reactor can
affect the characteristics of CaCO3 sorbent particles, such as calcination rate and reaction mechanism, for infurnace
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