지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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Proton-NMR spectroscopic method was applied to kinetic study of concentrated sulfuric acid hydrolysis reaction, especially focused on 2nd step of acid hydrolysis with deferent reaction time and temperature as main variables. Commercial xylan extracted from beech wood was used as model compound. In concentrated acid hydrolysis, xylan was converted to xylose, which is unstable in 2nd hydrolysis condition, which decomposed to furfural or other reaction products. Without neutralization steps, proton-NMR spectroscopic analysis method was valid for analysis of not only monosaccharide (xylose) but also other reaction products (furfural and formic acid) in acid hydrolyzates from concentrated acid hydrolysis of xylan, which was the main advantages of this analytical method. Higher temperature and longer reaction time at 2nd step acid hydrolysis led to less xylose concentration in xylan acid hydrolyzate, especially at 120℃ and 120 min, which meant hydrolyzed xylose was converted to furfural or other reaction products. Loss of xylose was not match with furfural formation, which meant part of furfural was degraded to other undetected compounds. Formation of formic acid was unexpected from acidic dehydration of pentose, which might come from the glucuronic acid at the side chain of xylan.
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Abstract
1. 서론
2. 재료 및 방법
3. 결과 및 고찰
4. 결론
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참고문헌 (20)
참고문헌 신청
1. [단행본] - 민두식 / 1990 / 목재당화학 / 선진문화사
2. [단행본] - Wenzl, H. F.J / 1970 / The chemical technology of Wood / Academic Press
3. [학술지(정기간행물)] - Saxena, J / 2010 / Effect of trace metals on ethanol production from synthesis gas by the ethanologenic acetogen, Clostridum ragsdalei / J. Ind. Microbiol. Biotechnol 38 (4) : 513 ~ 521
4. [학술지(정기간행물)] - Wilkins, M.R / 2011 / Microbial production of ethanol from carbon monoxide / Curr. Opin. Biotechnol 22 (3) : 326 ~ 330
5. [학술지(정기간행물)] - Datar RP / 2004 / Fermentation of biomass-generated producer gas to ethanol / Biotechnol Bioeng 86 : 587 ~ 594
2. [단행본] - Wenzl, H. F.J / 1970 / The chemical technology of Wood / Academic Press
3. [학술지(정기간행물)] - Saxena, J / 2010 / Effect of trace metals on ethanol production from synthesis gas by the ethanologenic acetogen, Clostridum ragsdalei / J. Ind. Microbiol. Biotechnol 38 (4) : 513 ~ 521
4. [학술지(정기간행물)] - Wilkins, M.R / 2011 / Microbial production of ethanol from carbon monoxide / Curr. Opin. Biotechnol 22 (3) : 326 ~ 330
5. [학술지(정기간행물)] - Datar RP / 2004 / Fermentation of biomass-generated producer gas to ethanol / Biotechnol Bioeng 86 : 587 ~ 594
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UCI(KEPA) : I410-ECN-0101-2013-586-000744301