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Kinetics of Lignin Separation during the Atmospheric Fractionation of Bagasse with p -Toluenesulfonic Acid.

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  • معلومة اضافية
    • المصدر:
      Publisher: MDPI Country of Publication: Switzerland NLM ID: 101092791 Publication Model: Electronic Cited Medium: Internet ISSN: 1422-0067 (Electronic) Linking ISSN: 14220067 NLM ISO Abbreviation: Int J Mol Sci Subsets: MEDLINE
    • بيانات النشر:
      Original Publication: Basel, Switzerland : MDPI, [2000-
    • الموضوع:
      Cellulose* ; Lignin*; Benzenesulfonates ; Biomass ; Hydrolysis
    • نبذة مختصرة :
      As a green and efficient component separation technology, organic acid pretreatment has been widely studied in biomass refining. In particular, the efficient separation of lignin by p -toluenesulfonic acid ( p -TsOH) pretreatment has been achieved. In this study, the mechanism of the atmospheric separation of bagasse lignin with p -TsOH was investigated. The separation kinetics of lignin was analyzed. A non-simple linear relationship was found between the separation yield of lignin and the concentration of p -TsOH, the temperature and the stirring speed. The shrinking nucleus model for the separation of lignin was established based on the introduction of mass transfer and diffusion factors. A general model of the total delignification rate was obtained. The results showed that the process of lignin separation occurred into two phases, i.e., a fast stage and a slow stage. The results provide a theoretical basis for the efficient separation of lignin by p -TsOH pretreatment.
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    • Grant Information:
      21968004 National Natural Science Foundation of China; 2022GXNSFAA035466 Natural Science Foundation of Guangxi Province
    • Contributed Indexing:
      Keywords: kinetics; lignin; mechanism; p-toluenesulfonic; shrinking nucleus model
    • الرقم المعرف:
      0 (Benzenesulfonates)
      9004-34-6 (Cellulose)
      9005-53-2 (Lignin)
      9006-97-7 (bagasse)
      QGV5ZG5741 (4-toluenesulfonic acid)
    • الموضوع:
      Date Created: 20220812 Date Completed: 20220815 Latest Revision: 20220815
    • الموضوع:
      20231215
    • الرقم المعرف:
      PMC9369161
    • الرقم المعرف:
      10.3390/ijms23158743
    • الرقم المعرف:
      35955877