Improvement of Furfural Production from Concentrated PreHydrolysis Liquor (PHL) of a Kraft-Based Hardwood Dissolving Pulp Production Process |
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| Authors: | Haitang Liu Huiren Hu M Sarwar Jahan Yonghao Ni |
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| Affiliation: | 1. Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, China;2. Limerick Pulp and Paper Centre, Department of Chemical Engineering, University of New Brunswick, Fredericton, NB, Canadaliuhaitang66@gmail.com;4. Limerick Pulp and Paper Centre, Department of Chemical Engineering, University of New Brunswick, Fredericton, NB, Canada;5. Pulp and Paper Research Division, BCSIR Laboratories, Dhaka, Bangladesh;6. Limerick Pulp and Paper Centre, Department of Chemical Engineering, University of New Brunswick, Fredericton, NB, Canada |
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| Abstract: | Hemicelluloses present in the prehydrolysis liquor (PHL) of the hardwood kraft-based dissolving pulp production process can be utilized in the production of furfural, which is an important renewable, non-petroleum-based platform chemical. A lower furfural yield was observed from the concentrated sugars in PHL in acetic-acid-catalyzed systems. The reaction rate of sugar consumption and furfural destruction in PHL was higher than those of model xylan and xylose systems, which may be due to the side-reactions of lignin with sugars and carbonization of oligomeric sugars. In order to minimize these side-reactions, a steam-stripping method of generated furfural was adopted. The results showed that the method was effective in increasing the furfural yield (41.5%) from the concentrated PHL. |
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| Keywords: | Biorefinery prehydrolysis liquor sugars conversion acetic acid furfural yield |
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