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首页|期刊导航|中国电机工程学报|多喷嘴对置式水煤浆气化炉内颗粒物分布特性的实验研究

多喷嘴对置式水煤浆气化炉内颗粒物分布特性的实验研究

中国电机工程学报Issue(20):59-65,7.
中国电机工程学报Issue(20):59-65,7.

多喷嘴对置式水煤浆气化炉内颗粒物分布特性的实验研究

Experimental Study of Particle Distribution in Bench-cale Opposed Multi-burner Gasifiers of Coal Water Slurry

摘要

Abstract

Particle distribution in gasifier has important influence on syngas, carbon conversion and slag deposition. Based on a bench-scale opposed multi-burner (OMB) gasifier, particle size and composition were measured by scanning electron microscope-energy dispersive spectrometer (SEM-EDS) and Malvern laser particle size analyzer. The results show that there are two kinds of microstructure of particles in gasifier. With the increase of atom ratio of oxygen to carbon, average particle size and fixed carbon content reduce downwards the axis of gasifier while the mass percentage of fine particles increases. The pyrolysis of coal occurs mainly in the impinging flame region, whereas combustion and gasification take place in both impinging flame region and plug flow region. The mass ratio of burned fixed carbon in the two regions is about 2:1.

关键词

多喷嘴对置式气化炉/水煤浆/氧碳比/颗粒物/破碎

Key words

opposed multi-burner gasifier/coal water slurry/atom ratio of oxygen to carbon/particle/fragmentation

分类

化学化工

引用本文复制引用

..多喷嘴对置式水煤浆气化炉内颗粒物分布特性的实验研究[J].中国电机工程学报,2013,(20):59-65,7.

基金项目

国家自然科学基金项目(21006026);国家重点基础研究发展计划项目(973计划)(2010CB227004)。 (21006026)

中国电机工程学报

OA北大核心CSCDCSTPCD

0258-8013

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