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벤치급 CO<sub>2</sub> 포집공정에서 흡수반응기의 내부구조에 따른 K-계열 고체흡수제의 성능평가
김재영 ( Jae-young Kim ),임호 ( Ho Lim ),우제민 ( Je Min Woo ),조성호 ( Sung-ho Jo ),문종호 ( Jong-ho Moon ),이승용 ( Seung-yong Lee ),이효진 ( Hyojin Lee ),이창근 ( Chang-keun Yi ),이종섭 ( Jong-seop Lee ),민병무 ( Byoung-moo Mi 한국화학공학회 2017 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.55 No.3
In this study, the performance characteristics of the K-based sorbents (KEP-CO2P2, KEPCO RI, Korea) has been studied in relation with the heat exchanger structure and shape in a mixing zone of the carbonator in the benchscale dry CO<sub>2</sub> capture process. Two types of heat exchangers (different structure and shape) were used in the carbonator as CASE 1 and CASE 2, in which the experiment has been continuously performed under the same operating conditions. During the continuous operation, working temperature of carbonator was 75 to 80 ℃, that of regenerator was 190 to 200 ℃, and CO<sub>2</sub> inlet concentration of the feed gas was 12 to 14 vol%. Especially, to compare the dynamic sorption capacity of sorbents, the differential pressure of the mixing zone in the carbonator was maintained around 400 to 500 mm H<sub>2</sub>O. Also, solid samples from the carbonator and the regenerator were collected and weight variation of those samples was evaluated by TGA. The CO<sub>2</sub> removal efficiency and the dynamic sorption capacity were 64.3% and 2.40 wt%, respectively for CASE 1 while they were 81.0% and 4.66 wt%, respectively for CASE 2. Also, the dynamic sorption capacity of the sorbent in CASE 1 and CASE 2 was 2.51 wt% and 4.89 wt%, respectively, based on the weight loss of the TGA measurement results. Therefore, It was concluded that there could be a difference in the performance characteristics of the same sorbents according to the structure and type of heat exchanger inserted in the carbonator under the same operating conditions.
Potassium계열 흡수제를 이용한 50 Nm³/h급 연소 후 건식 CO₂ 포집 공정: 재생 조건 최적화
원유섭(Yooseob Won),김재영(Jae-Young Kim),박영철(Young Cheol Park),이창근(Chang-Keun Yi),남형석(Hyungseok Nam),우제민(Je-Min Woo),진경태(Gyoung-Tae Jin),박재현(Jaehyeon Park),이승용(Seung-Yong Lee),조성호(Sung-Ho Jo),신명식(Myung-Sik 한국에너지기후변화학회 2020 한국에너지기후변화학회 학술대회 Vol.2020 No.11