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Title
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Kinetics of Lignin Removal from the Lignocellulosic Matrix after Ozone Transportation
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Sub-Title |
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Subject |
Ozonation mechanism; delignification; cellulose to methane; particle diffusion; pseudo-second-order
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Author |
Khurram Shahzad Baig
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Publish Year |
2022 |
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Diss#. |
doi.org/10.3390/methane1030014 |
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Pages |
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Text Language |
English |
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Accession |
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Library Section |
Research Article |
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Abstract |
This study presents a new method to remove lignin from wheat straw (lignocellulosic) using
the ozonation technique. Lignocellulosic material is a complex biopolymer composed of cellulose,
hemicellulose and lignin. Apart from lignin, which acts as a chemical resistant, lignocellulosic is the
main resource of cellulose and hemicellulose sugars. The ozonation reaction takes place in a twophase
solid–gas fluidization stainless steel reactor. The focus of this paper is to investigate the kinetics
that govern lignin removal from lignocellulosic material after ozonation treatment. The kinetics
of lignin removal did not agree with the experimental data until the suggested model is modified
to a pseudo-second-order. The results showed that at a higher ozone supply of 150 mg min1, the
surface reaction and intra-particular diffusion were the most significant factors to remove the lignin.
Moreover, at a lower ozone supply of 30 mg min1, the intra-particular diffusion was the only
contributor t
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