生物质型煤气化行为实验研究

Study on gasification characteristics of biocoal briquettes

以被称为"十大害草"之一的水葫芦为生物质资源,与福建低活性无烟煤混合制备成生物质型煤。在内径为28 mm小型固定床气化反应器中对生物质型煤气化行为进行了实验测定。通过对3组不同生物质配比的型煤分别进行不同时间的气化,考察了生物质型煤气化行为演变过程行为。结果显示,型煤在气化过程中形成较为明显的灰层与未反应的芯层界面,且随着生物质配比的增加,灰层迁移速度较快,气化时间缩短,表明添加生物质有利于提高福建生物质型煤的气化活性。

The gasification process of biocoal briquettes is studied in a Φ28 mm i.d.of a fixed-bed gasification reactor.Water hyacinth,one of the 'Ten harmful grasses',as biomass resources is blended with the Fujian low activity anthracite to make biocoal briquette.Performance of the briquette gasification process is investigated through studying the gasification reaction of three types of biocoal briquettes at different reaction times.The results demonstrate that a layer of product forms around the unreacted core of...