A Comparison of Phenolic Monomers Produced from Different Types of Lignin by Phosphotungstic Acid Catalysts
Abstract Herein we studied the chemical structure of different types of lignin samples and the potential to prepare phenolic monomers was illustrated by phosphotungstic acid catalysts. Different types of H/G/S lignin components had different structures. The lignin extracted from poplar had the highe...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH
2019-05-01
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| Series: | ChemistryOpen |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/open.201900088 |
| _version_ | 1819017868367364096 |
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| author | Dr. Boyu Du Dr. Bingyang Liu Dr. Xing Wang Prof. Jinghui Zhou |
| author_facet | Dr. Boyu Du Dr. Bingyang Liu Dr. Xing Wang Prof. Jinghui Zhou |
| author_sort | Dr. Boyu Du |
| collection | DOAJ |
| description | Abstract Herein we studied the chemical structure of different types of lignin samples and the potential to prepare phenolic monomers was illustrated by phosphotungstic acid catalysts. Different types of H/G/S lignin components had different structures. The lignin extracted from poplar had the highest molecular weight and β‐O‐4 aryl ether contents, followed by pine and straw lignin samples. After depolymerization by PTA catalyst, the yields of phenolic monomers detected was 8.06 wt % (poplar), 5.44 wt % (pine) and 4.52 wt % (straw), respectively. Further, the ratios of H/G/S in the phenol monomers were also different, indicating that the S, G and H types structural units were continuously transformed with each other during the reaction. In our study, the change in the types of lignin samples resulted into an improvement of the distribution of phenolic products, and also the selectivity of phenolic monomers significantly. |
| first_indexed | 2024-12-21T03:10:22Z |
| format | Article |
| id | doaj.art-a783878368e941c2939ff7b650fe9dcf |
| institution | Directory Open Access Journal |
| issn | 2191-1363 |
| language | English |
| last_indexed | 2024-12-21T03:10:22Z |
| publishDate | 2019-05-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | ChemistryOpen |
| spelling | doaj.art-a783878368e941c2939ff7b650fe9dcf2022-12-21T19:18:00ZengWiley-VCHChemistryOpen2191-13632019-05-018564364910.1002/open.201900088A Comparison of Phenolic Monomers Produced from Different Types of Lignin by Phosphotungstic Acid CatalystsDr. Boyu Du0Dr. Bingyang Liu1Dr. Xing Wang2Prof. Jinghui Zhou3Department Liaoning Key Laboratory of Pulp and Papermaking Engineering Dalian Polytechnic University Dalian Liaoning 116034 ChinaDepartment Liaoning Key Laboratory of Pulp and Papermaking Engineering Dalian Polytechnic University Dalian Liaoning 116034 ChinaDepartment Liaoning Key Laboratory of Pulp and Papermaking Engineering Dalian Polytechnic University Dalian Liaoning 116034 ChinaDepartment Liaoning Key Laboratory of Pulp and Papermaking Engineering Dalian Polytechnic University Dalian Liaoning 116034 ChinaAbstract Herein we studied the chemical structure of different types of lignin samples and the potential to prepare phenolic monomers was illustrated by phosphotungstic acid catalysts. Different types of H/G/S lignin components had different structures. The lignin extracted from poplar had the highest molecular weight and β‐O‐4 aryl ether contents, followed by pine and straw lignin samples. After depolymerization by PTA catalyst, the yields of phenolic monomers detected was 8.06 wt % (poplar), 5.44 wt % (pine) and 4.52 wt % (straw), respectively. Further, the ratios of H/G/S in the phenol monomers were also different, indicating that the S, G and H types structural units were continuously transformed with each other during the reaction. In our study, the change in the types of lignin samples resulted into an improvement of the distribution of phenolic products, and also the selectivity of phenolic monomers significantly.https://doi.org/10.1002/open.201900088lignindepolymerizationrenewable resourcescatalystsphenolic monomers |
| spellingShingle | Dr. Boyu Du Dr. Bingyang Liu Dr. Xing Wang Prof. Jinghui Zhou A Comparison of Phenolic Monomers Produced from Different Types of Lignin by Phosphotungstic Acid Catalysts ChemistryOpen lignin depolymerization renewable resources catalysts phenolic monomers |
| title | A Comparison of Phenolic Monomers Produced from Different Types of Lignin by Phosphotungstic Acid Catalysts |
| title_full | A Comparison of Phenolic Monomers Produced from Different Types of Lignin by Phosphotungstic Acid Catalysts |
| title_fullStr | A Comparison of Phenolic Monomers Produced from Different Types of Lignin by Phosphotungstic Acid Catalysts |
| title_full_unstemmed | A Comparison of Phenolic Monomers Produced from Different Types of Lignin by Phosphotungstic Acid Catalysts |
| title_short | A Comparison of Phenolic Monomers Produced from Different Types of Lignin by Phosphotungstic Acid Catalysts |
| title_sort | comparison of phenolic monomers produced from different types of lignin by phosphotungstic acid catalysts |
| topic | lignin depolymerization renewable resources catalysts phenolic monomers |
| url | https://doi.org/10.1002/open.201900088 |
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