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，上海 200237

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（φ_st）与初始流动内摩擦角（φ_i）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

DOI: 10.3969/j.issn.1003-9015.2017.00.047

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