Research progress on in-situ catalytic hydrodeoxygenation of lignin
The development of renewable energy and carbon neutrality is imperative due to the depletion of fossil fuels and environmental pollution. Lignin, as the abundant natural aromatic polymer, can be converted into high-value chemicals and fuels, offering an alternative to fossil resources. The bio-oil a...
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Editorial Office of Energy Environmental Protection
2024-04-01
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| Series: | 能源环境保护 |
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| Online Access: | https://eep1987.com/en/article/4895 |
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| author | ZHAO Yuying ZHAN Jiahui HU Rui LUO Gang ZHANG Shicheng* |
| author_facet | ZHAO Yuying ZHAN Jiahui HU Rui LUO Gang ZHANG Shicheng* |
| author_sort | ZHAO Yuying |
| collection | DOAJ |
| description | The development of renewable energy and carbon neutrality is imperative due to the depletion of fossil fuels and environmental pollution. Lignin, as the abundant natural aromatic polymer, can be converted into high-value chemicals and fuels, offering an alternative to fossil resources. The bio-oil and chemicals generated from lignin depolymerization have limited direct applications due to their high oxygen content. The strategy of hydrodeoxygenation (HDO) provides a pathway for the devel opment of high-value biobased fuels and chemicals. However, the traditional lignin conversion process, which is dominated by high-pressure molecular hydrogen, poses safety hazards, hindering its industrial promotion. In-situ catalytic HDO of lignin can be an alternative strategy. It utilizes solvents or lignin′s functional groups as hydrogen sources. During the catalytic process, hydrogen is generated in situ and acts on the substrate, achieving efficient value-added conversion. This method not only effectively avoids the need for external high-pressure hydrogen supply but also enables in-situ upgrading of lignin under mild conditions, improving atomic utilization and product selectivity. Through the study of in-situ catalytic HDO strategies for lignin, the research progress of in-situ hydrogen supply in recent years is summarized. The analysis includes the reaction mechanisms of four commonly used in-situ catalytic HDO strategies: combined reforming and HDO (RHDO), combined metal hydrolysis and HDO process (HHDO), catalytic transfer hydrogenation (CTH), and self-supported hydrogenolysis (SSH). The status of various strategies is discussed, and the research focus, challenges, and prospects of in-situ catalytic HDO strategies for lignin are explored. |
| format | Article |
| id | doaj-art-939e6a6b22484ee696dae51decf9ae5b |
| institution | DOAJ |
| issn | 2097-4183 |
| language | zho |
| publishDate | 2024-04-01 |
| publisher | Editorial Office of Energy Environmental Protection |
| record_format | Article |
| series | 能源环境保护 |
| spelling | doaj-art-939e6a6b22484ee696dae51decf9ae5b2025-08-20T03:06:52ZzhoEditorial Office of Energy Environmental Protection能源环境保护2097-41832024-04-01382324210.20078/j.eep.20240117Research progress on in-situ catalytic hydrodeoxygenation of ligninZHAO Yuying0ZHAN Jiahui1HU Rui2LUO Gang3ZHANG Shicheng*41. Department of Environmental Science and Engineering, Fudan University; 2. Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Waste; 3. Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention LAP3; 4. Shanghai Institute of Pollution Control and Ecological Security1. Department of Environmental Science and Engineering, Fudan University; 2. Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Waste; 3. Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention LAP3; 4. Shanghai Institute of Pollution Control and Ecological Security1. Department of Environmental Science and Engineering, Fudan University; 2. Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Waste; 3. Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention LAP3; 4. Shanghai Institute of Pollution Control and Ecological Security1. Department of Environmental Science and Engineering, Fudan University; 2. Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Waste; 3. Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention LAP3; 4. Shanghai Institute of Pollution Control and Ecological Security1. Department of Environmental Science and Engineering, Fudan University; 2. Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Waste; 3. Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention LAP3; 4. Shanghai Institute of Pollution Control and Ecological SecurityThe development of renewable energy and carbon neutrality is imperative due to the depletion of fossil fuels and environmental pollution. Lignin, as the abundant natural aromatic polymer, can be converted into high-value chemicals and fuels, offering an alternative to fossil resources. The bio-oil and chemicals generated from lignin depolymerization have limited direct applications due to their high oxygen content. The strategy of hydrodeoxygenation (HDO) provides a pathway for the devel opment of high-value biobased fuels and chemicals. However, the traditional lignin conversion process, which is dominated by high-pressure molecular hydrogen, poses safety hazards, hindering its industrial promotion. In-situ catalytic HDO of lignin can be an alternative strategy. It utilizes solvents or lignin′s functional groups as hydrogen sources. During the catalytic process, hydrogen is generated in situ and acts on the substrate, achieving efficient value-added conversion. This method not only effectively avoids the need for external high-pressure hydrogen supply but also enables in-situ upgrading of lignin under mild conditions, improving atomic utilization and product selectivity. Through the study of in-situ catalytic HDO strategies for lignin, the research progress of in-situ hydrogen supply in recent years is summarized. The analysis includes the reaction mechanisms of four commonly used in-situ catalytic HDO strategies: combined reforming and HDO (RHDO), combined metal hydrolysis and HDO process (HHDO), catalytic transfer hydrogenation (CTH), and self-supported hydrogenolysis (SSH). The status of various strategies is discussed, and the research focus, challenges, and prospects of in-situ catalytic HDO strategies for lignin are explored.https://eep1987.com/en/article/4895ligninhydrodeoxygenationaqueous phase reformingmetal hydrolysiscatalytic transfer hydrogenationself-supported hydrogenolysis |
| spellingShingle | ZHAO Yuying ZHAN Jiahui HU Rui LUO Gang ZHANG Shicheng* Research progress on in-situ catalytic hydrodeoxygenation of lignin 能源环境保护 lignin hydrodeoxygenation aqueous phase reforming metal hydrolysis catalytic transfer hydrogenation self-supported hydrogenolysis |
| title | Research progress on in-situ catalytic hydrodeoxygenation of lignin |
| title_full | Research progress on in-situ catalytic hydrodeoxygenation of lignin |
| title_fullStr | Research progress on in-situ catalytic hydrodeoxygenation of lignin |
| title_full_unstemmed | Research progress on in-situ catalytic hydrodeoxygenation of lignin |
| title_short | Research progress on in-situ catalytic hydrodeoxygenation of lignin |
| title_sort | research progress on in situ catalytic hydrodeoxygenation of lignin |
| topic | lignin hydrodeoxygenation aqueous phase reforming metal hydrolysis catalytic transfer hydrogenation self-supported hydrogenolysis |
| url | https://eep1987.com/en/article/4895 |
| work_keys_str_mv | AT zhaoyuying researchprogressoninsitucatalytichydrodeoxygenationoflignin AT zhanjiahui researchprogressoninsitucatalytichydrodeoxygenationoflignin AT hurui researchprogressoninsitucatalytichydrodeoxygenationoflignin AT luogang researchprogressoninsitucatalytichydrodeoxygenationoflignin AT zhangshicheng researchprogressoninsitucatalytichydrodeoxygenationoflignin |