燃煤锅炉耦合风电叶片热解气化方案研究Research on the pyrolysis and gasification scheme of coal-fired boilers coupled with wind turbine blades
张东旺,滕达,周托,杨海瑞,徐波,别如山,张缦
摘要(Abstract):
风电机组“退役潮”临近,大量退役风电叶片的无害化处理是风电产业实现完整绿色闭环的重要瓶颈。在国家积极实施煤电节能降碳改造的背景下,燃煤锅炉协同处理退役风电叶片可以实现固废的减量化、资源化、无害化。针对退役风电叶片规模化连续热处理的需求,提出一种燃煤锅炉耦合风电叶片热解气化的工艺路线;通过抽取锅炉烟气作为热解气化的热源,热解气化产生的可燃油气送入炉膛燃烧,简化了风电叶片处理流程,减少了初投资。采用ASPEN Plus软件对该工艺进行了模拟和验证,结果表明:当风电叶片的处理速度为1 t/h时,抽取总烟气的比例不超过0.6%,即可满足热解气化的能量需求;基于7 MW的链条炉进行中试试验研究,发现烟气中含氧量为5%~10%时,可以通过“一步热解气化”得到干净的玻璃纤维;基于模拟结果和试验数据,提出一种带有烟气调质协同处理工艺,即通过掺混省煤器出口烟气、加入空气的方式,控制烟气温度为600~700℃、含氧量为5%~10%,以提高回收纤维的强度,并进一步简化风电叶片处理流程,为风电叶片的规模化处理提供参考。
关键词(KeyWords): 退役风电叶片;热解气化;耦合锅炉;ASPEN Plus软件;烟气再循环
基金项目(Foundation): 新疆维吾尔自治区重点研发计划项目(2024B03031)~~
作者(Author): 张东旺,滕达,周托,杨海瑞,徐波,别如山,张缦
DOI: 10.19666/j.rlfd.202507127
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