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Extraction and Characterization of lignin by ionic liquid treatment

첫 페이지 보기
  • 발행기관
    강원대학교 산림과학연구소 바로가기
  • 간행물
    강원대학교 산림과학연구소 학술대회 바로가기
  • 통권
    2019 International Symposium of Institute of Forest Science (2019.09)바로가기
  • 페이지
    pp.122-122
  • 저자
    Eun-Ah Lee, Song-Yi Han, Chan-Woo Park, Ji-Soo Park, Gu-Joong Kwon, Seok-Ju Kim, Seung-Hwan Lee
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A450363

원문정보

초록

영어
In this study, lignin was isolated by ionic liquid (IL) treatment from lignocellulosic biomass (Quercus mongolica), and the characteristics of the obtained lignin were investigated. The wood powder was loaded in ILs ([EMIM]Ac, [AMIM]Cl, [BMIM]Cl, [HMIM]Cl) to a 15wt% concentration, and then the reaction was conducted at 140 °C for 2h. The reactant was vacuum-filtrated, and the residue was washed using an acetone/distilled water (1/1, v/v) solution. The filtrate was evaporated using an evaporator to remove the acetone in the filtrate. Next, the filtrate was added in distilled water (2L), and then the pH of the filtrate was adjusted to pH 2 using a HCl solution to precipitate IL-isolated lignin (ILL). The yields of ILL in [EMIM]Ac, [AMIM]Cl, [BMIM]Cl and [HMIM]Cl were 5.28%, 1.66%, 1.55%, and 1.52%, respectively. As the reaction temperature in [EMIM]Ac was increased, the yield of ILL and soluble fraction were increased. Molecular weights of ILLs were 4388, 2657, 2260, and 2660(g/mol) for [EMIM]Ac, [AMIM]Cl, [BMIM]Cl and [HMIM]Cl, respectively. The hydroxyl group content of the ILL by [EMIM]Ac was 2.58 mmol/g.

키워드

Ionic liquid Lignin extraction Biorefinery

저자

  • Eun-Ah Lee [ Division of Forest Material Science & Engineering College of Forest and Environmental Sciences, Kangwon National University ]
  • Song-Yi Han [ Division of Forest Material Science & Engineering College of Forest and Environmental Sciences, Kangwon National University ]
  • Chan-Woo Park [ Division of Forest Material Science & Engineering College of Forest and Environmental Sciences, Kangwon National University ]
  • Ji-Soo Park [ Division of Forest Material Science & Engineering College of Forest and Environmental Sciences, Kangwon National University ]
  • Gu-Joong Kwon [ Division of Forest Material Science & Engineering College of Forest and Environmental Sciences, Kangwon National University ]
  • Seok-Ju Kim [ Wood Chemistry division, Forest Products Department, National Institute of Forest Science, Seoul, 02455, Republic of Korea ]
  • Seung-Hwan Lee [ Division of Forest Material Science & Engineering College of Forest and Environmental Sciences, Kangwon National University ] Corresponding Author

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    강원대학교 산림과학연구소 [Institute of Forest Science Kangwon National University]
  • 설립연도
    1975
  • 분야
    농수해양>임학
  • 소개
    강원대학교부설산림과학연구소(이하 “연구소”라 한다)는 산림에 관한 제반 학술적 연구를 통하여 산림자원의 효용을 밝히고 임업 및 임산업의 발전에 기여함을 목적으로 한다.

간행물

  • 간행물명
    강원대학교 산림과학연구소 학술대회
  • 간기
    부정기
  • 수록기간
    2017~2024
  • 십진분류
    KDC 526 DDC 634

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