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RDF와 탄화슬러지 혼합물의 열중량 및 열동역학 특성 연구
순지엔펑 ( Jian Feng Sun ),황현욱 ( Hyeon Uk Hwang ),김명균 ( Myung Gyun Kim ),느지오카안토니무투아 ( Antony Mutua Nzioka ),이창수 ( Chang Soo Lee ),김영주 ( Young Ju Kim ) 한국환경과학회 2016 한국환경과학회지 Vol.25 No.2
After analyzing of heating value of four kinds of RDF, the RDF-D has the highest heating value, was chosen to be mixed with carbonized sludge by different ratio. The 85%:15% ratio, which has the highest efficiency, was analyzed with thermogravimetric and pyrolysis kinetics. Applying of Kissinger method, activation energy was obtained from slope which is calculated from relation of ln(β/T2 m) and 1/Tm. The kinetic parameters obtained from Kissinger method were 46.06 kJ/mol of RDF, 55.99 kJ/mol of carbonized sludge and 40.68 kJ/mol of mixture of RDF and carbonized sludge. The mixture of RDF and carbonized sludge has the lowest activation energy and frequency factor, during thermal decomposition reaction it has the slowest reaction rate and needs the lowest energy. Although activation energy with pyrolysis of RDF was irregularly scattered, it showed that activation energy was stabilized by co-pyrolysis of RDF and additives(Carbonized Sludge).
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정원학,황현욱,김명균,순지엔펑,느지오카 안토니 무투아,김영주,Jung, Won Hak,Hwang, Hyeon Uk,Kim, Myung Gyun,Sun, JianFeng,Mutua, Nzioka Antony,Kim, Young Ju 한국자원리싸이클링학회 2015 資源 리싸이클링 Vol.24 No.5
Waste plastic differs in its speed of combustion owing to its variety in composition as well as kinds of plastic. This study is aimed at examining the thermal weight analysis and determination of its kinetics in order to derive the design element in pyrolysis of RPF (Refused Plastic Fuel) as the plastic solid fuel. Based on the result of TGA (Thermogravimetric analysis), kinetic characteristics were analyzed by using Kissinger method which are the most common method for obtaining activation energy, and experimental conditions of TGA were set as follows: in a nitrogen atmosphere, gas flow rate of 20 ml/min, heating rate of $5{\sim}50^{\circ}C/min$, and maximum hottest temperature of $800^{\circ}C$. The method used for determining the property of waste plastic when thermally decomposed was thought feasible as the basic data in deciding the performance, design, and optimal operating condition of the reactor in the actual reactor. 폐플라스틱은 조성뿐만 아니라 다양한 플라스틱의 종류로 인하여 열분해 및 연소 속도가 달라진다. 본 연구는 폐플라스틱 고체 연료 (Refused Plastic Fuel)의 열분해 및 연소 시 설계요소 도출을 위한 열중량 분석 및 동역학 특성을 규명하였다. 열중량 분석기 (Thermogravimetric analysis)의 결과을 이용하여 동력학 특성 중 가장 일반적인 방법인 Kissinger 방법을 통하여 활성화 에너지를 구하였다. TGA의 실험 조건은 다음과 같이 설정하였다. 질소 가스유량 20 ml/min, 승온 속도 $5{\sim}50^{\circ}C/min$ 및 최대온도는 $800^{\circ}C$로 하였다. 본 연구의 폐플라스틱 열분해 특성 연구를 위하여 적용된 방법은 실제의 반응기에서 반응기의 성능, 설계 및 최적 운전조건을 결정할 때 기초자료로 사용될 수 있을 것으로 사료된다.
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