风机叶片回收技术现状与展望

Current Status and Prospect of Recycling Technology of Wind Turbine Blades

[目的]世界风电行业蓬勃发展,老旧风机叶片迎来退役高潮。如何实现废旧风机叶片的高效回收和资源化利用已经成为影响风电行业绿色循环发展和低碳足迹目标的关键问题。[方法]传统废旧风机叶片的处理方式为填埋或燃烧,资源浪费的同时产生了巨大的环境问题。在此背景下,文章系统梳理了国内外主流风机叶片回收技术(机械回收、热解回收、化学回收、综合回收),分析了不同回收技术的优劣。[结果]基于对当前国内外废旧风机叶片回收工业化、资源化应用场景的总结,对未来的风机叶片回收利用市场及前景进行了建议和展望。[结论]风电产业对于助力节能减排及实现“碳达峰、碳中和”目标有重要作用,而风机叶片回收市场尚处于中小规模的探索性阶段,距离大规模产业化还有一段距离,亟需政策、标准、技术研发方面的支持。文章从多方面梳理论述了国内外废旧风机叶片回收技术和应用场景的现状及发展趋势,以期为风电行业的绿色循环低碳发展提供科学参考。

[Introduction]The growth of wind power industry is accelerating faster than ever worldwide,at the same time,the waste generation from end-of-life wind turbine blades is expected to peak in recent years.Efficient recycling of end-of-life wind turbine blades has become a key issue affecting the sustainable development of the wind power industry and its low-carbon-footprint target.[Method]Traditionally,majority of the end-of-life blades were either buried or incinerated after being dismantled,causing resources wasting and severe environmental problems.In this context,this paper reviewed the mainstream domestic and international recycling processes of end-of-life wind turbine blades such as mechanical recycling,pyrolysis,chemical recycling and comprehensive recycling,and analyzed their corresponding advantages and disadvantages.[Result]By summarizing the industrial recycling application scenarios,this paper provides suggestions and prospects for the prospective recycling market of the end-of-life wind turbine blades.[Conclusion]Wind power industry plays an important role in realizing the"carbon-peaking and carbon-neutrality"goals through assisting in implementation of the energy-conservation and emission-reduction strategy.However,the wind turbine blade recycling market is currently in the exploratory stage with medium and small-size,there is an urgent need for policies,standards and technology development to help with its large scale industrialization.This paper illustrates current status and development trend of domestic and international recycling technology and application scenarios of end-of-life wind turbine blades,and aims to provide the scientific references for the sustainable and low-carbon development of the wind power industry.