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Characteristics of Fly Ash from Laboratory Combustion of Pulverized Coal

机译：煤粉实验室燃烧产生的粉煤灰特性

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Submicron particles generated from pulverized coal combustion show an enrichment of certain trace elements that may be a health hazard when ingested into the lung. Sieved pulverized coal was entrained in an air/methane/oxygen mixture and burned in an enclosed bunsen type burner fitted with a chimney. Cold secondary air was injected at the chimney exit. The fly ash samples were separated into two size categories (diameter < 2.5 mu and 2.5 mu < diameter < 15 mu ) and analyzed by x-ray fluorescence. Results show enrichment of several volatile elements in the small size fraction compared to the large size fraction. There is also indication of depletion of some refractory elements. The results support suggestions of several earlier observations which were made on full scale modern boilers. (ERA citation 07:049164)

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作者
Parsons, G.; Sherman, P.; Greif, R.; Robben, F.;
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年度 1981
页码 p.1-22
总页数 22
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Fly ash; Coal; Combustion; Fractionation; Chemical analysis; X-ray fluorescence analysis; Enrichment; Particle size; Elements; Trace amounts; Volatility; Health hazards; Arsenic; Iron; Zinc; Potassium; Chromium; Rubidium; Vanadium; Nickel; Selenium; Sulfur; Calcium; Titanium;

机译：粉煤灰;煤;燃烧;分馏;化学分析; X射线荧光分析;富集;粒径;元素;痕量;挥发性;健康危害;砷;铁;锌;钾;铬;铷;钒;镍;硒;硫;钙;钛;

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1. Utilization of blended fluidized bed combustion (FBC) ash and pulverized coal combustion (PCC) fly ash in geopolymer [J] . Prinya Chindaprasirt, Ubolluk Rattanasak Waste Management . 2010,第4期

机译：在地聚合物中利用混合流化床燃烧（FBC）灰和煤粉燃烧（PCC）粉煤灰
2. Influence of Combustion Conditions and Coal Properties on Physical Properties of Fly Ash Generated from Pulverized Coal Combustion [J] . Hiromi Shirai, Hirofumi Tsuji, Michitaka Ikeda, Energy & fuels . 2009,第4期

机译：燃烧条件和煤性质对煤粉燃烧产生粉煤灰物理性质的影响
3. Physical and Chemical Prosperities Difference Between Pulverized Coal Boiler Fly Ash and Circulating Fluidized Bed Combustion Ash [J] . C. Chen, Q. Li, D.J. Tao Asian Journal of Chemistry: An International Quarterly Research Journal of Chemistry . 2012,第10期

机译：煤粉锅炉粉煤灰与循环流化床燃烧灰的理化特性差异
4. NOx Emission and Fly Ash Characteristics from Oxygen- Blown Pulverized Coal Combustion [C] . H. Pak, N. Iwashima, N. Kobayashi, International Energy Conversion Engineering Conference . 2004

机译：氧吹式粉煤燃烧的NOx排放和粉煤灰特性
5. The Mobility of Semi-Volatile Trace Elements from Size Segregated Fly Ash Particles Generated during Pulverized Coal Combustion [D] . Seshadri, Prasanna. 2018

机译：煤粉燃烧过程中产生的大小分离的粉煤灰颗粒中的半挥发性微量元素的迁移率
6. Distribution Characteristics of Valuable ElementsAl Li and Ga and Rare Earth Elements in Feed Coal Fly Ash andBottom Ash from a 300 MW Circulating Fluidized Bed Boiler [O] . Zhibin Ma, *, Xueyuan Shan, 2019

机译：贵重元素的分布特征进料煤粉煤灰和铝中的AlLi和Ga以及稀土元素300 MW循环流化床锅炉的底灰
7. Investigation of the Relationship between Particulate-Bound Mercury and Properties of Fly Ash in a Full-Scale 100 MWe Pulverized Coal Combustion Boiler [O] . Sen Li, Chin-Min Cheng, Bobby Chen, 2007

机译：全尺寸100 MWE粉煤燃烧锅炉粉煤灰颗粒汞汞与性能关系的研究
8. Classification of pulverized coal ash. Part 2: Leaching properties of concrete with pulverized coal fly ash as partial cement replacement [R] . Van der Sloot, H. A. , De Groot, G. J. , Hoede, D. 1993

机译：粉煤灰的分类。第2部分：用粉煤灰作为部分水泥替代物的混凝土的浸出性能

Characteristics of Fly Ash from Laboratory Combustion of Pulverized Coal

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