http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
NCCU(Non-Capture CO2 Utilization) 기술의 CO2 감축 잠재량 산정
이지현 ( Ji Hyun Lee ),이동욱 ( Dong Woog Lee ),장세규 ( Jang Se Gyu ),곽노상 ( No-sang Kwak ),이인영 ( In Young Lee ),장경룡 ( Kyung Ryoung Jang ),최종신 ( Jong-shin Choi ),심재구 ( Jae-goo Shim ) 한국화학공학회 2015 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.53 No.5
본 연구에서는 다양한 CO2 재활용 기술 중 경제성 및 CO2 감축량 효과가 큰 것으로 평가되는 CO2 활용 중탄산나 트륨 제조기술 대상으로 상용 플랜트 운영시 전체 CO2 감축량을 산정하고자 하였다. 상기 CO2 재활용 기술은 발전소 배가스 중에 포함된 CO2의 탄산화 반응을 통해 상업적으로 유용한 중탄산나트륨을 제조하는 기술로서 현재 한국동서 발전의 지원을 받아 한전 전력연구원에서 연구개발 진행 중이다(기술개발 사업명: NCCU, Non-Capture CO2 Utilization). 본 기술의 CO2 감축량 산정을 위해 하루 100톤 CO2 처리 규모(연간 36,500톤 CO2 처리 가능, 발전 용량 기준 5 MW 급)의 상용급 플랜트를 대상으로 공정모사 프로그램(PRO/II 9.1)을 활용한 열 및 물질 수지 분석을 수행하였으며 특히 종래 유사기술과의 비교를 통한 간접 CO2 감축량 산정을 위해 탄산나트륨 및 중탄산나트륨 등의 제조를 위한 대표적기술인 Solvay 공정과의 에너지 사용량을 비교·분석하였다. 분석 결과 종래 Solvay 공정은 단위 중탄산나트륨 생산을 위한 에너지 사용량이 약 7.4 GJ/tNaHCO3으로 이를 해당 에너지를 얻기 위해 필요한 석탄 사용량 및 CO2 발생량으로 환산시 연간 약 48,862 톤 CO2에 해당 된다. 반면 발전소 배가스 중에 포함된 CO2를 활용한 중탄산나트륨 제조공정의 경우 탄산화 반응에 의한 CO2 직접 포집분(연간 약 36,500 톤)과 동일 화합물 생산을 위한 종래 공정(Solvay) 대비 낮은 에너지 사용량에 따른 간접적인 CO2 저감량(연간 약 46,885 톤) 효과로 전체 CO2 감축량은 약 83,385톤으로 산정되었다. 상기 분석을 통해 본 논문의 CO2 활용 중탄산나트륨 제조기술은 제품 판매에 따른 경제적 효과뿐만 아니라 종래 공정에 비해 낮은 에너지 사용으로 CO2 저감효과가 매우 높아 대규모 CO2 저장 공간이 필요한 CCS(Carbon Capture & Sequestration) 기술의 대안기술로서 유망한 것으로 분석되었다. Estimating potential of CO2 emission reduction of non-capture CO2 utilization (NCCU) technology was evaluated. NCCU is sodium bicarbonate production technology through the carbonation reaction of CO2 contained in the flue gas. For the estimating the CO2 emission reduction, process simulation using process simulator (PRO/II) based on achemical plant which could handle CO2 of 100 tons per day was performed, Also for the estimation of the indirect CO2 reduction, the solvay process which is a conventional technology for the production of sodium carbonate/sodium bicarbonate, was studied. The results of the analysis showed that in case of the solvay process, overall CO2 emission was estimated as 48,862 ton per year based on the energy consumption for the production of NaHCO3 (7.4 GJ/tNaHCO3). While for the NCCU technology, the direct CO2 reduction through the CO2 carbonation was estimated as 36,500 ton per year and the indirect CO2 reduction through the lower energy consumption was 46,885 ton per year which lead to 83,385 ton per year in total. From these results, it could be concluded that sodium bicarbonate production technology through the carbonation reaction of CO2 contained in the flue was energy efficient and could be one of the promising technology for the low CO emission technology.
Indomethacin 이 Sunbutn 에 미치는 영향에 관한 연구
최종성,이유신,김원석 대한피부과학회 1978 大韓皮膚科學會誌 Vol.16 No.3
It is generally recognized that several chemical mediators are involved in tbe pathogenesis of sunbum; however, the exact mechanism is still to he resolved. Recently, prostaglandin has been found to be one of the inflammatory mediators in sunbum, particularly in the delayed erythema response and several investigators have shown that the nonsteroidal antiinflammatory drugs inhibit the in vivo synthesis of prostaglandin. On the assumption that the nonsteroidal antiinflammatory drugs might exert a beneficial effect on the sunbum through the antiprostaglandin effect, several authors have reported the effect of indomethacin on sunbum. This study was undertaken to evaluate the effect of topical indomethacin on the delayed erythema response induced by artificial sunlamp and sunlight by clinical and histopathological examination. Indomethacin(2. 5% ointment, 2. 5% solution, 5% solution) was applied immediately after 3 MED irradiation of artificial sunlamp to the shaved back skin of 6 healthy albino guinea pigs weighing 550-850gm and 9 human volunteers and the delayed erythema response was observed at 2, 4, 6, 12, 24 and 48 hours after irradiation respectively. Punch biopsies of the skin were performed on 6 guinea pigs at 6, 12, 24 a.nd 48 hours after irradiation and the histologic changes were observed. Four human volunters were exposed t,o 3 MED of sunlight and indomethacin preparations were applied immediately after irradiation. The delayed erythema response was observed at 2, 4, 6, 12, 24 and 48 hours postirradiation and in one volunteer, the skin was biopsied at 24 hour for histologi.c evaluation. The results were as follows: 1. Topical indomethacin in ointment or solution forms delayed and decreased the appearance and degree of erythema induced by sunlight and artificial sunlamp in both human and animal subjects. 2. Histologically, the number of sunbum cells at 24 hour in the epidermis of one human volunteer was decreased on indomethacin applied sites. The dermis showe6 no difference in histologic changes between control and indomethacin sitea. In animal study, however, no detectable difference in epidermal or dermal changes was observed between control and indomethacin applied sites. The autors confirmed that topical indometha,cin was effective in delaying and blanching of the delayed erythema of sunbum in guinea pigs as well as in human volunteers, though there was no difference in histologic changes between indomethacin and control sites in guinea pigs. The mechanism involvel on this aspect is remained to be resolved.
수종 피부질환자에서 Clocortolone ( Purantix , Sandoz ) 의 치료효과에 대한 임상적 관찰
최종성,김광중,이유신,김원석,박장규 대한피부과학회 1977 大韓皮膚科學會誌 Vol.15 No.4
Cloeortolone (9-a-chloro-6-a fluoro-11-B 21 digydroxy-16 methyl preganl,4-diene) is a newly synthesized corticonsteroid which has been found to have potent antinflammatory action and good tolerance through animal experiment. Several investigators reported its therapeutic affect in various dermatoses by topical application. The present was undertaken to evaluate the therapeutic effect of 0.1% clocortolone cream (Purantix-Sandoz) in patients with eczematous dermatoses and with psoriasis and to compare its effect with that of I% hydrocortisone. Eleven patients with contact dermatitis, 10 with psoriasis entered this study durtin the period of 6 months from January to june, 1977 at the Department of Dermatology, Seoul National University Hospital. All patients were instructed to apply 0.1% Clocortolone cream on one side of their lesion and 1%hydrocortisone cream on the opposite site for two weeks. After wo weeks' period of observation the status of the lesion was evaluated clinically and the tesults were as follows. 1. Ninety one percent of patiens with contact dermatitis, 70% of atopic dermatitis, 60% of nenrodermatitis, 67% of nummular eczema and 60% of psoriasis responded very effectively or moderately effectively. The therapeutic responses were generally similar to that of 1% hydrocortisone. 2. During the ovservation period, there was no systemic of local side effect of 0.1% Clocortolone cream.
Perifolliculitis Capitis Abscedens et Suffodiens 1 예
최종성,이유신,이철언 대한피부과학회 1976 大韓皮膚科學會誌 Vol.14 No.4
We presented a case of perifolliculitis capitis abscedens et suffodiens associated with acne conglobata in 40-year-old rnale. He had a sausage-shaped plaque containing many fistular tracts on right temnporal area and cicatrizing alopecia on occiput. On the middle portion of upper back he had a adult fist-sized plaque containing many fistular tracts. Histopathologically epidermis showed mild byperkeratosis and keratotic plugging and in the dermis most hair follicles were destroyed and replacel by fibrous tissue but there were moderxte cellular infiltration composed of neutrophils, lymphocytes a.nd hist.iocytes around the remained hair follicles. On serum electrophoresis alpha,-globulin was elevated and gamna globulin was the upper liviit of nornal variation. Skin tests with murnps vaccine, dinitrochloro benzene (DNCB) and old tuberculin disclosed the evidence of de reased c $quot;ll-mediated immunity(CMI). All th se findings suggest thzt immune rriechanisni r,-ay be concerned ivith the pathogenesis in this case. He was treated with th internal administration of antibiotic and corticosteroid and with surgical opening and curettage of fistular tracts.