Fractionation and cellulase treatment for enhancing the properties of kraft-based dissolving pulp

被引：32
|
作者：
Duan, Chao [1 ,2 ]
Wang, Xinqi [1 ]
Zhang, YanLing [1 ]
Xu, Yongjian [1 ]
Ni, Yonghao [1 ,2 ]
机构：
[1] Shaanxi Univ Sci & Technol, Coll Bioresources Chem & Mat Engn, Xian 710021, Peoples R China
[2] Univ New Brunswick, Limerick Pulp & Paper Ctr, Fredericton, NB E3B 5A3, Canada
来源：
BIORESOURCE TECHNOLOGY | 2017年 / 224卷
关键词：
Dissolving pulp; Kraft-based process; Fractionation; Cellulase treatment; Molecular weight distribution; Fock reactivity; VISCOSE RAYON PRODUCTION; ENZYMATIC-HYDROLYSIS; PARTICLE-SIZE; REACTIVITY; ACCESSIBILITY; ENDOGLUCANASE; FIBERS; RATES;
D O I：
10.1016/j.biortech.2016.10.077
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The aim of this study was to investigate a combined process involving pulp fractionation and cellulase treatment of each fraction for improving the molecular weight distribution (MWD) and reactivity of a kraft-based dissolving pulp. Three pulp fractions, namely long-fiber, mid-fiber and short-fiber fractions (LF, MF and SF, respectively), were used as the substrates. The results showed that the SF had the highest accessibility, lowest viscosity, and highest cellulase adsorption capacity, while the opposite was true for the LF. At a given viscosity, the combined process led to a lower polydispersity index (3.71 vs 4.98) and a higher Fock reactivity (85.6% vs 76.3%), in comparison to the conventional single-stage cellulase treatment. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：439 / 444
页数：6
相关论文
共 50 条
  • [31] RECOVERY OF LIGNOCELLULOSIC MATERIALS FROM THE PHL OF KRAFT-BASED DISSOLVING PULP PROCESS USING CATIONIC POLYMERS
    Saeed, Abrar
    Fatehi, Pedram
    Ni, Yonghao
    16TH INTERNATIONAL SYMPOSIUM ON WOOD, FIBER AND PULPING CHEMISTRY, PROCEEDINGS, VOLS I & II, 2011, : 983 - 988
  • [32] Using Neutral Sulfite Semichemical Pulp to Adsorb Lignocelluloses from Prehydrolysis Liquor of the Kraft-based Dissolving Pulp Process
    Afrousheh, Mehdi
    Fatehi, Pedram
    Ni, Yonghao
    CURRENT ORGANIC CHEMISTRY, 2013, 17 (15) : 1583 - 1588
  • [33] Adsorption of Lignocelluloses Dissolved in Prehydrolysis Liquor of Kraft-Based Dissolving Pulp Process on Oxidized Activated Carbons
    Liu, Xin
    Fatehi, Pedram
    Ni, Yonghao
    INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2011, 50 (20) : 11706 - 11711
  • [34] Optimization of Lignin Recovery from the Pre-Hydrolysate of Kraft-Based Dissolving Pulp Production Processes
    Mazar, Adil
    Jemaa, Naceur
    Al Dajani, Waleed Wafa
    Marinova, Mariya
    Perrier, Michel
    APPLIED SCIENCES-BASEL, 2021, 11 (01): : 1 - 20
  • [35] Crude cellulase treatment for reactivity enhancement of pre-hydrolysed kraft dissolving pulp for viscose
    Sharma, J.
    Sango, C.
    Kaur, P.
    Bhardwaj, N.
    NEW BIOTECHNOLOGY, 2018, 44 : S134 - S134
  • [36] Isolation and cationization of hemicelluloses from pre-hydrolysis liquor of kraft-based dissolving pulp production process
    Liu, Zehua
    Ni, Yonghao
    Fatehi, Pedram
    Saeed, Abrar
    BIOMASS & BIOENERGY, 2011, 35 (05): : 1789 - 1796
  • [37] Enhancing Kraft based dissolving pulp production by integrating green liquor neutralization
    Bi, Ran
    Khatri, Vinay
    Chandra, Richard
    Takada, Masatsugu
    Figueroa, Daniela Vargas
    Zhou, Hao
    Wu, Jie
    Charron, Daniel
    Saddler, Jack
    CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS, 2021, 2
  • [38] A process for purifying xylosugars of pre-hydrolysis liquor from kraft-based dissolving pulp production process
    Jiachuan Chen
    Jiran Dong
    Guihua Yang
    Ming He
    Feng Xu
    Pedram Fatehi
    Biotechnology for Biofuels, 11
  • [39] RECOVERY OF DISSOLVED LIGNOCELLULOSIC MATERIALS FROM THE PHL OF KRAFT-BASED DISSOLVING PULP PROCESS USING ACTIVATED CARBON
    Liu, Xin
    Fatehi, Pedram
    Ni, Yonghao
    16TH INTERNATIONAL SYMPOSIUM ON WOOD, FIBER AND PULPING CHEMISTRY, PROCEEDINGS, VOLS I & II, 2011, : 849 - 854
  • [40] POTENTIAL PRODUCTS AND SEPARATION PROCESSES FOR PRE-HYDROLYSIS LIQUOR OF KRAFT-BASED DISSOLVING PULP PROCESS: A REVIEW
    Shen, Jing
    Fatehi, Pedram
    Ni, Yonghao
    J-FOR-JOURNAL OF SCIENCE & TECHNOLOGY FOR FOREST PRODUCTS AND PROCESSES, 2013, 3 (06): : 39 - 47
12345