High-temperature removal of cadmium compounds using solid sorbents

Journal Article · Mon Jul 01 00:00:00 EDT 1991 · Environmental Science and Technology; (United States)

DOI:https://doi.org/10.1021/es00019a009· OSTI ID:5458540

Uberol, M; Shadman, F ^[1]

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1. Univ. of Arizona, Tucson (United States)

Emission of cadmium compounds is a major problem in many coal combustors and waste incinerators. In the present work, the use of solid sorbents for removal of cadmium compounds from high-temperature flue gases is investigated. The sorbents tested were silica, alumina, kaolinite, emathlite, and lime. Compounds containing aluminum oxide show high cadmium removal efficiency. In particular, bauxite has the highest rate and capacity for cadmium capture. The overall sorption process is not just physical adsorption, but rather a complex combination of adsorption and chemical reaction.

• OSTI ID: 5458540
• Journal Information: Environmental Science and Technology; (United States), Vol. 25:7; ISSN 0013-936X
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
01 COAL, LIGNITE, AND PEAT
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
ALUMINIUM OXIDES
SORPTIVE PROPERTIES
ALUMINIUM SILICATES
CADMIUM
ADSORPTION
CALCIUM OXIDES
FLUE GAS
DEMETALLIZATION
KAOLINITE
SILICA
ADSORBENTS
BAUXITE
CHEMICAL COMPOSITION
COAL
COMBUSTION
EFFICIENCY
EXPERIMENTAL DATA
INCINERATORS
MUNICIPAL WASTES
PERFORMANCE TESTING
REMOVAL
SCANNING ELECTRON MICROSCOPY
X-RAY DIFFRACTION
X-RAY SPECTROSCOPY
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM ORES
CALCIUM COMPOUNDS
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
COHERENT SCATTERING
DATA
DIFFRACTION
ELECTRON MICROSCOPY
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASEOUS WASTES
INFORMATION
MATERIALS
METALS
MICROSCOPY
MINERALS
NUMERICAL DATA
ORES
OXIDATION
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
SCATTERING
SEPARATION PROCESSES
SILICATE MINERALS
SILICATES
SILICON COMPOUNDS
SILICON OXIDES
SORPTION
SPECTROSCOPY
SURFACE PROPERTIES
TESTING
THERMOCHEMICAL PROCESSES
WASTES
540120* - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)
010800 - Coal
Lignite
& Peat- Waste Management
320305 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management
320604 - Energy Conservation
Consumption
& Utilization- Municipalities & Community Systems- Municipal Waste Management- (1980-)