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Peracetic acid treatment of lignins for selective production of valuable chemiclas
리그닌 유래 유용화합물의 선택적 생산을 위한 과초산 처리

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Authors
박세영
Advisor
최인규
Major
농업생명과학대학 산림과학부(환경재료과학전공)
Issue Date
2018-08
Publisher
서울대학교 대학원
Description
학위논문 (박사)-- 서울대학교 대학원 : 농업생명과학대학 산림과학부(환경재료과학전공), 2018. 8. 최인규.
Abstract
This study was conducted to investigate the degradation characteristics of lignin depending on the peracetic acid (PAA) and hydrogen peroxide (HP) concentrations, and to produce the low-molecular weight lignins by controlling the reaction conditions. In addition, reaction conditions for producing the definite products from lignin were investigated. Fractionation of the PAA-treated lignin depending on their molecular weight range was carried out by using open-column with selecting several solvents.

Acetic acid (AA) and HP were mixed at a ratio of 4:1, 1.5:1, 1:1, 1:1.5, and 1:5 (v/v) for preparing the PAA solution. After PAA treatment, the highest solid degradation rates were obtained as 29.0% and 65.3% at 1:1.5 (v/v) for alkali and kraft lignin, respectively. However, degradation characteristics of two lignins were different
Language
English
URI
http://hdl.handle.net/10371/143219
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College of Agriculture and Life Sciences (농업생명과학대학)Dept. of Forest Sciences (산림과학부)Theses (Ph.D. / Sc.D._산림과학부)
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