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1)  coal fly ash
煤飞灰
1.
Determination of Major Minor and Trace Elements in Coal Fly Ash by Sequential ICP Spectrometer;
顺序等离子体光谱技术测定煤飞灰中常量、少量和微量元素
2.
The extraction efficiencies with different solvents and by different methods for polycyclic aromatic hydrocarbons (PAHs) in a coal fly ash environmental standard reference material (SRM) have been investigated.
本文采用不同提取方法以及不同溶剂对煤飞灰环境标准参考物质样品中PAHs的提取效率进行了考察。
3.
Individual particles of coal fly ash from power plant were analyzed by scanning electron microscopy equipped with an energy dispersive X-ray spectrometer for investigating their morphology and chemical composition.
用扫描电镜X射线能谱对电厂煤飞灰单个颗粒进行了形貌、粒度和化学组成的观察与分析,用x射线衍射鉴定了煤飞灰粗细颗粒中元素存在的化学形态(化合物或物相),结果表明;煤飞灰中有较多球形颗粒,还有一些不规则形颗粒,主要含有Si,AlCa,Fe,S,K等,不同形貌、大小颗粒中的组分含量差别较大,但大多以硅铝酸盐为基体,其它元素分布在颗粒表层(约1μm)中,粗细颗粒中均有石英和氧化铁,但粗粒中还富含Ca和Fe的碳酸盐和Ca,Mg的硫酸盐及一些粘土矿物;而细粒中除富含,Fe的各种氧化物外,还含有Fe的硫酸盐和一些氯化物。
2)  pulverized fuel ash (PFA)
粉煤灰;飞灰;煤灰
3)  fly ash
燃煤飞灰
1.
Study on distribution characteristic of element in fly ash particles during coal combustion;
煤飞灰颗粒物中元素分布规律的研究
2.
Through the simulation experimentation, the Hg adsorption characteristics of fly ash in flue gas were studied carefully in laboratory.
在实验室模拟研究了燃煤飞灰颗粒组分对燃煤烟道气中气相Hg的吸附脱除特性 。
3.
This paper presented model and experimental studies on the influence of frequency on acoustic agglomeration of coal-fired fly ash.
计算结果还表明,在声波作用下,燃煤飞灰气溶胶总浓度随时间呈指数衰减规律降低。
4)  coal-fired fly ash
燃煤飞灰
1.
Acoustic agglomeration of coal-fired fly ash particles in low frequency sound fields
煤飞灰低频下声波团聚的实验研究
2.
An experiment was conducted to study the effects of flue gas components on the mercury adsorption by coal-fired fly ash by using a bench-scale fixed bed.
在小型固定床试验台上开展了烟气成分对燃煤飞灰汞吸附影响的试验研究。
3.
Using mercury vapor generated in mercury penetration tube and basic gaseous components,the influences of fly ash amount,adsorption temperature,inlet mercury concentration and fly ash particle size on the adsorption of mercury vapor by coal-fired fly ash were studied in a bench-scale fixed-bed test rig.
利用汞渗透管产生的汞蒸气和基本气体成分,在小型固定床试验台上研究了飞灰用量、吸附温度、汞进气浓度及飞灰颗粒大小等因素对燃煤飞灰吸附气态汞的影响。
5)  pulverized fuel ash
粉煤灰;飞灰
6)  C W M fly ash
水煤浆飞灰
补充资料:飞灰
分子式:
CAS号:

性质:又称粉煤灰(coal ash)。由燃料(主要是煤)燃烧过程中排出的微小灰粒。其粒径一般在1~100μm之间。飞灰是煤粉在高温(1300~1500℃)中燃烧、冷却而形成。大部分呈球状,表面光滑,微孔较小。部分颗粒因熔融时粘连,表面粗糙、棱角多呈蜂窝状组合粒子。飞灰主要物相是玻璃体,占50%~80%;所含晶体矿物有莫来石、α-石英、方解石、钙长石、硅酸钙、赤铁矿和磁铁矿等,还有少量未燃的碳。飞灰的排放量与燃煤中的灰分含量有关。我国燃烧1t煤约产生250~300kg粉煤灰,大量粉煤灰进入大气会造成污染。目前主要用除尘器进行治理。粉煤灰主要含二氧化硅(SiO2)、氧化铝(Al2O3)和氧化铁(Fe2O3)等,已广泛用于制水泥及制各种轻质建材。此外还可利用粉煤灰作漂珠及作为肥料和微量复合肥料。在工业方面可从粉煤灰中回收铁、碳、铜、锗和钪等多种物质。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条
煤灰