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- W2255227989 abstract "본 연구에서는 30, 60, <TEX>$90^{circ}C$</TEX>의 증류수를 이용하여 거대억새 내에 존재하는 무기성분을 제거한 후 원료의 화학적 변화 및 열분해 특성 변화를 관찰하였다. 증류수 처리 온도가 증가할수록 거대억새의 탄소함량은 44.0% (control)에서 46.2% (<TEX>$90^{circ}C$</TEX> 처리)로 증가하였으며 산소함량은 49.3% (control)에서 47.0% (<TEX>$90^{circ}C$</TEX> 처리)로 감소하였다. 또한 증류수 처리 온도가 증가함에 따라 거대억새 내 회분 함량은 4.6% (control)에서 3.2% (<TEX>$90^{circ}C$</TEX> 처리)로 점차적으로 감소하는 것을 확인할 수 있었다. 주요 단당류 정량 분석 결과 무기성분 제거에 따른 시료의 당 손실은 없는 것으로 확인되었으며 결정화 영역 분석을 통해 셀룰로오스/헤미셀룰로오스 영역의 구조적인 변형도 일어나지 않았음을 알 수 있었다. 무기성분 정량 결과 거대억새 내에는 칼륨(5,644 ppm), 인(3,995 ppm), 마그네슘(1,403 ppm), 칼슘(711 ppm) 등이 상당량 존재하는 것으로 나타났다. 열중량 분석을 통해 거대억새 내 무기성분 함량이 감소할수록 최종적으로 생성되는 탄의 수율이 감소함을 확인하였다. 또한 시료 내 무기성분 함량이 감소함에 따라 최대반응온도(<TEX>$T_M$</TEX>) 및 최대분해율(<TEX>$V_M$</TEX>)이 증가하는 경향을 보였다. The goal of this study was to investigate change of thermal decomposition feature of miscanthus (Miscanthus sacchariflorus) after removal of inorganic constituents using distilled water (D.I-w; 30, 60 and <TEX>$90^{circ}C$</TEX>). The carbon content was increased whereas the oxygen content was decreased with the temperature of D.I-w treatment. Moreover, ash content was slightly decreased from 4.6% of control to 3.2% of <TEX>$90^{circ}C$</TEX> D.I-w treated sample. Results of total monomeric sugar contents and X-ray diffraction (XRD) analysis showed that structural changes of cellulose/hemicellulose regions did not occurr during D.I-w treatment. Results of inductively coupled plasma emission spectrometer (ICP-ES) showed that miscanthus has the largest amount of inorganic constituents such as potassium (5,644 ppm), phosphorus (3,995 ppm), magnesium (1,403 ppm) and calcium (711 ppm). Thermogravimetric analysis (TGA) confirmed that the yield of char slightly decreased whereas the yield of volatiles increased with increasing D.I-w treatment temperature. In addition, differential thermogravimetric analysis (DTGA) indicated that the maximum decomposition rate (<TEX>$V_M$</TEX>) and temperature (<TEX>$T_M$</TEX>) corresponding to VM were varied from <TEX>$0.82%/^{circ}C$</TEX>, <TEX>$360.60^{circ}C$</TEX> of control to <TEX>$1.17%/^{circ}C$</TEX>, <TEX>$362.62^{circ}C$</TEX> of <TEX>$90^{circ}C$</TEX>-D.I-w treated sample." @default.
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- W2255227989 date "2013-07-25" @default.
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- W2255227989 title "Evaluation of Primary Thermal Degradation Feature of M. sacchariflorus After Removing Inorganic Compounds Using Distilled Water" @default.
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