Research progress on in-situ catalytic hydrodeoxygenation of lignin
Journal Title: Energy Environmental Protection - Year 2024, Vol 38, Issue 2
Abstract
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.
Authors and Affiliations
ZHAO Yuying|Department of Environmental Science and Engineering, Fudan University, China, Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Waste, China, Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), China, Shanghai Institute of Pollution Control and Ecological Security, China, ZHAN Jiahui|Department of Environmental Science and Engineering, Fudan University, China, Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Waste, China, Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), China, Shanghai Institute of Pollution Control and Ecological Security, China, HU Rui|Department of Environmental Science and Engineering, Fudan University, China, Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Waste, China, Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), China, Shanghai Institute of Pollution Control and Ecological Security, China, LUO Gang|Department of Environmental Science and Engineering, Fudan University, China, Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Waste, China, Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), China, Shanghai Institute of Pollution Control and Ecological Security, China, ZHANG Shicheng*|Department of Environmental Science and Engineering, Fudan University, China, Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Waste, China, Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), China, Shanghai Institute of Pollution Control and Ecological Security, China
Keywords
Related Articles
- EP ID EP737187
- DOI 10.20078/j.eep.20240117
- Views 71
- Downloads 0
Response surface optimization of co-hydrothermal carbonation parameters of municipal sludge and enteromorpha
The increasing amount of municipal sludge poses a serious threat to the environment. Traditional treatment methods still face various challenges in terms of harmlessness and resource utilization. Hydrothermal carbonizati...
Research and application progress of carbon capture technology in the iron and steel industry
Carbon emission reduction in the iron and steel industry is critical for achieving China′s carbon neutral goal. This paper systematically reviews the research and application progress of various carbon capture technologi...
Research progress on Pt-based catalysts for propane dehydrogenation reaction
Propylene is an important chemical raw material that is widely used in the production of polypropylene, acrylonitrile, propylene oxide, and other chemical products. It is also the basic raw material for the three major s...
Experimental study on fluoride removal from mine water by complexing-induction fluoride removal agent
In ecologically fragile areas of western and northwestern China, where coal mine water is reused as domestic water or discharged into surface water systems after treatment (the discharge concentration of fluoride (F^-) i...
Recent advances in the microwave pyrolysis of lignocellulosic biomass
With the increasing depletion of fossil resources and the growing serious environmental pollution, the development and utilization of environmentally friendly renewable resources have drawn widespread attention. Microwav...