서지주요정보
바이오 매스의 열분해와 수증기 가스화에 따른 열 중량분석 = A thermogravimetric analysis for pyrolysis and steam gasification of biomass
서명 / 저자 바이오 매스의 열분해와 수증기 가스화에 따른 열 중량분석 = A thermogravimetric analysis for pyrolysis and steam gasification of biomass / 최광식.
저자명 최광식 ; Choi, Kwang-Sik
발행사항 [서울 : 한국과학기술원, 1986].
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소장정보

등록번호

4103616

소장위치/청구기호

학술문화관(문화관) 보존서고

MCE 8629

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

The pyrolysis reactions of sawdust were studied by means of a thermogravimetric analyzer(TGA). The experimental results show that the heating rate of 0.9-1.1mg sample has the little effect on the reaction rate, activation energy. Generally, the TG-curves for wood sample in He flow showed that the major loss commenced at 220-230℃ and the decomposition was rapid up to 400℃. The effects of catalysis on the thermogram characteristics, such as the total weight percent pyrolysed and the temperature at which the maximum rate of pyrolysis occured, were analysed by thermal cracking model. Results for wood containing additive ($K_2CO_3$) were mainly affected by concentration of $K_2CO_3$. The pyrolysis of wood cellulose, lignin in He flow from 25-800℃ was followed by IR-Spectroscopy. Series of spectra recorded at various stage of carbonization showed that although the main decomposition occured near 350℃, mixtures of mostly aliphatic material predominate in the 350-400℃ range, but declined in extent to be replaced by mixtures of aromatic material above 500℃. Further carbonising causes discret spectral feature to decline and disappear near 600℃. The $K_2CO_3$ drastically altered the wood cellulose and lignin pyrolysis. The $K_2CO_3$-impregnated wood became chared at 200℃. Above 500℃, the metallic potassium was evolved markedly. The effects of potassium carbonate($K_2CO_3$) in catalyzing between wood char and steam have been studied in the temperature range 600-1000℃ using TGA. The catalyzed reaction is rapidly accelerated than pure wood gasification and the mechanism is understood poorely by cyclic mechanism.

서지기타정보

서지기타정보
청구기호 {MCE 8629
형태사항 vii, 67 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Kwang-Sik Choi
지도교수의 한글표기 : 정인재
공동교수의 한글표기 : 우성일
지도교수의 영문표기 : In-Jae Chung
공동교수의 영문표기 : Seong-Ihl Woo
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 65-67
주제 Pyrolysis.
Biomass.
열 무게 분석. --과학기술용어시소러스
열 분해. --과학기술용어시소러스
바이오매스. --과학기술용어시소러스
Thermogravimetric analysis.
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