文献类型：期刊文献

中文题名：Experimental Study of Particle Distribution in Bench-scale Opposed Multi-burner Gasifiers of Coal Water Slurry

英文题名：Experimental study of particle distribution in bench-scale opposed multi-burner gasifiers of coal water slurry

作者：Zhang, Jie[1]; Guo, Qinghua[1]; Zhou, Zhijie[1]; Yu, Guangsuo[1]

机构：[1] Key Laboratory of Coal Gasification and Energy Chemical Engineering of Ministry of Education, East China University of Science and Technology, Xuhui District, Shanghai 200237, China

年份：2013

期号：20

起止页码：59

中文期刊名：中国电机工程学报

外文期刊名：Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering

收录：EI(收录号：20133416646868)

语种：英文

外文关键词：Coal combustion - Particle size - Spectrometers - Slags - Scanning electron microscopy - Coal - Particle size analysis - Carbon

摘要：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. ? 2013 Chinese Society for Electrical Engineering.