연소 전 CO2 포집 흡수제들의 마모특성 (The Characteristics of Attrition of Absorbents for Pre-combustion CO2 Capture)

서지정보

· 발행기관 : 한국수소및신에너지학회
· 수록지 정보 : 한국수소및신에너지학회논문집 / 24권 / 5호 / 428 ~ 436페이지
· 저자명 : 류호정, 이동호, 문종호, 박영철, 조성호

초록

Attrition characteristics of CO2 absorbents for pre-combustion CO2 capture were investigated to check attrition loss of those absorbents and to determine solid circulation direction and the better CO2 absorbent. The cumulative attrition losses of two absorbents increased with increasing time. However, attrition loss under a humidified condition was lower than that under a non-humidified condition case. Between two absorbents, attrition loss of PKM1-SU absorbent was higher than that of P4-600 absorbent. The average particle sizes of the attrited particles were less than 2.5μm for two absorbents under a non-humidified condition case, and therefore, we could conclude that the main mechanism of attrition for two absorbents is not fragmentation but abrasion. Based on the results from the test for the effect of humidity on the attrition loss, we selected solid circulation direction from SEWGS reactor to regeneration reactor because the SEWGS reactor contains more water vapor than regeneration reactor. Attrition loss and make-up rate of two absorbents were compared based on the results from CO2 sorption capacity tests and attrition tests. Required make-up rate of P4-600 absorbent was lower than that of PKM1-SU absorbent. However, more detail investigation on the optimum regeneration temperature, manu-facturing cost, solid circulation rate, regeneration rate, and long-term sorption capacity should be considered to select the best CO2 absorbent.

영어초록

Attrition characteristics of CO2 absorbents for pre-combustion CO2 capture were investigated to check attrition loss of those absorbents and to determine solid circulation direction and the better CO2 absorbent. The cumulative attrition losses of two absorbents increased with increasing time. However, attrition loss under a humidified condition was lower than that under a non-humidified condition case. Between two absorbents, attrition loss of PKM1-SU absorbent was higher than that of P4-600 absorbent. The average particle sizes of the attrited particles were less than 2.5μm for two absorbents under a non-humidified condition case, and therefore, we could conclude that the main mechanism of attrition for two absorbents is not fragmentation but abrasion. Based on the results from the test for the effect of humidity on the attrition loss, we selected solid circulation direction from SEWGS reactor to regeneration reactor because the SEWGS reactor contains more water vapor than regeneration reactor. Attrition loss and make-up rate of two absorbents were compared based on the results from CO2 sorption capacity tests and attrition tests. Required make-up rate of P4-600 absorbent was lower than that of PKM1-SU absorbent. However, more detail investigation on the optimum regeneration temperature, manu-facturing cost, solid circulation rate, regeneration rate, and long-term sorption capacity should be considered to select the best CO2 absorbent.

참고자료

· 없음