Water resistance of flue gas desulphurization gypsum-fly ash-steel slag composites

Investigation of Parameters Affecting Gypsum Dewatering Properties in a Wet Flue Gas Desulphurization Pilot Plant

Wet flue gas desulphurization (FGD) plants with forced oxidation, installed at coal and oil fired power plants for removal of SO2(g), must produce gypsum of high quality. However, quality issues such as an excessive moisture content, due to poor gypsum dewatering properties, may occur from time to time. In this work, the particle size distribution, morphology, and filtration rate of wet FGD gyp...

Fly Ash Zeolitization Products Applied to Waste Water and Flue Gas Decontamination

1 Institute of Earth Sciences ”Jaume Almera“ (CSIC), LLuis Solé i Sabaris, s/n, 08028 Barcelona, Spain; Institute of Coal Chemistry (CSIC), María de Luna, 12, 50015 Zaragoza, Spain; 3 Departamento de Ingeniería Química y Ambiental (ESIS), Camino de los Descubrimientos, s/n. Isla de la Cartuja, 41092 Sevilla, Spain.; 4 KEMA, Section of Environmental Affairs, Utrechtseweg, 310, 6800 ET Arnhem, Th...

Basic Properties of Flue-Gas Desulfurization Gypsum

Základné vlastnosti sadrovca pre odsírenie spalín Several hundred thousand of FGD gypsum is produced annually at the Matra Power Plant (Hungary) as a byproduct of generating electricity and protecting the environment. Chemical and mechanical characteristics of this material were studied of the Department of Mining and Geotechnical Engineering, University of Miskolc (Hungary). The material in qu...

Dynamics of wet flue gas desulphurization in spray absorber

A concise one dimensional thermal-hydraulic two-fluid model is presented for the numerical prediction of sulphur dioxide absorption from the flue gas onto drops of the water-limestone slurry in the vertical spray tower absorber. The model is based on mass, momentum and energy balance equations for each phase separately, i.e. downward falling droplets of water-limestone slurry and upward flowing...

PROPERTIES OF ALKALI-ACTIVATED FLY ASH CONCRETE BLENDED WITH SLAG