郑忆南,陆海峰,郭晓镭,龚欣

• 1:华东理工大学煤气化及能源化工教育部重点实验室上海煤气化工程技术研究中心

摘要(Abstract)：

细灰是气流床煤气化工艺的副产物,在建筑、吸附和提取氧化铝等诸多领域都展现出其巨大的再利用潜力。细灰的流动特性对其再利用过程有着重大影响,但不同气化技术产生的细灰性质有所不同,流动性也相差较大,因此对不同气化技术产生细灰进行流动性表征的研究意义重大。研究分别选取水煤浆气化(OMB)细灰以及不同粉煤气化工艺(Shell、SE)细灰为基础物料,通过测试细灰的内聚力(Cohesion)、稳态内摩擦角(φst)与初始流动内摩擦角(φi)的差值以及单位流动能(SE)对不同气化工艺细灰的流动特性进行了对比研究,并获得了平均粒径和细颗粒含量对细灰流动性质的影响结果。研究表明:研究涉及的几种气化细灰中,粉煤气化细灰比水煤浆气化细灰内聚力更强,流动性更差;对粉煤气化而言,激冷流程的细灰较废锅流程的细灰流动能力更弱。

关键词(KeyWords)： 煤气化;细灰;流动性;细颗粒含量

Abstract:

Keywords:

基金项目(Foundation): 中央高校基本科研业务费专项资金(222201514338);; 上海市科委科研计划项目(15DZ1200802);; 山西省煤基重点科技攻关项目(MH2014-01)

作者(Author): 郑忆南,陆海峰,郭晓镭,龚欣

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