燃料化学学报2016，Vol.44Issue(3)：305-313,9.
准东煤流化床气化飞灰的理化特性研究
Physical and chemical properties of fly ash from fluidized bed gasification of Zhundong coal
摘要
Abstract
The ash fusionc harca teristics, physical structure, chemical compso itions and gasification reactivity of Zhundong coal ( ZD ) fly ash from fluidized bed gasification were explored by fusion point analyzer, X-ray fluorescence spectrometer ( XRF) , scanning electron microscopy ( SEM) , and therm o-gar vimetric analyzer.The results show that the concentrations of minerals in ZD fly ash, such as SiO2 , Fe2 O3 , Na2 O, CaO, change greatly during gasificatio n process, but the ash fusionet mperature of ZD fly ash is similar to that of ZD.Theresi a wide particle-size distribution in ZD fly ash, which shows a significant bimodal distribution, and a large differecn e of elemental compositions for ZD fly sa h of dif erent partilc e size.The reactivity of ZD fly ash increasesw ith the increaes in gsa ification temperature.Compared with the ZD cah r from pyrolysis, the ZD fly ash has more advancedc arbon crystla line structure, a largre surface ra ea and is relatively rich in meos -pores and macro-pores, wh ich results in a higher gasfi icait on reactivity.关键词
准东煤/流化床气化/熔融特性/气化反应活性Key words
Zhundogn coal/lf uidizde bed ag sification/fusion characteristics/gasification reactivity分类
化学化工引用本文复制引用
张玉魁,张海霞,朱治平..准东煤流化床气化飞灰的理化特性研究[J].燃料化学学报,2016,44(3):305-313,9.基金项目
The project was supported by the National Natural Science Foundation of China （21306193）．@@@@国家自然科学基金（21306193）项目资助 （）
