Sorbents for mercury removal from flue gas

Granite, Evan J.; Hargis, Richard A.; Pennline, Henry W.

doi:10.2172/1165

Cited by 38 publications

(49 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The excellent performance of KI-impregnated BC under different temperature (20 • C, 140 • C and 180 • C) suggested potentially the enhancement of chemisorptions. Iodine and potassium iodide promoted activated carbon sorbents were previously studied, and several potential mechanisms for mercury capture were suggested by Granite [20,21]. He found that the spent iodated activated carbon showed oxidized Hg species and no elemental Hg was detected by XPS studies.…”

Section: Discussion On the Removal Mechanismmentioning

confidence: 99%

Enhanced capture of elemental mercury by bamboo-based sorbents

Tan

Xiang

et al. 2012

Journal of Hazardous Materials

View full text Add to dashboard Cite

Section: Discussion On the Removal Mechanismmentioning

confidence: 99%

Enhanced capture of elemental mercury by bamboo-based sorbents

Tan

Xiang

et al. 2012

Journal of Hazardous Materials

View full text Add to dashboard Cite

“…Oxidized forms of mercury in the atmosphere are believed to include mercuric chloride and mercuric oxide [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. The element and many of its compounds are powerful neurotoxins [16].…”

Section: Introductionmentioning

confidence: 99%

“…Point source removal of mercury from coal-burning power plants is a difficult endeavor [16,[18][19][20][21][22][23][24][25][26]. Mercury is present in flue gas at low concentrations of around 1 part per billion by volume [16].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Implications of mercury interactions with band-gap semiconductor oxides

Granite

King

Stanko

et al. 2008

Main Group Chemistry

Self Cite

View full text Add to dashboard Cite

Titanium dioxide is a well-known photooxidation catalyst. It will oxidize mercury in the presence of ultraviolet light from the sun and oxygen and/or moisture to form mercuric oxide. Several companies manufacture self-cleaning windows. These windows have a transparent coating of titanium dioxide. The titanium dioxide is capable of destroying organic contaminants in air in the presence of ultraviolet light from the sun, thereby keeping the windows clean. The commercially available self-cleaning windows were used to sequester mercury from oxygen-nitrogen mixtures. Samples of the self-cleaning glass were placed into specially designed photo-reactors in order to study the removal of elemental mercury from oxygen-nitrogen mixtures resembling air. The possibility of removing mercury from ambient air with a self-cleaning glass apparatus is examined. The intensity of 365-nm ultraviolet light was similar to the natural intensity from sunlight in the Pittsburgh region. Passive removal of mercury from the air may represent an option in lieu of, or in addition to, point source clean-up at combustion facilities. There are several common band-gap semiconductor oxide photocatalysts. Sunlight (both the ultraviolet and visible light components) and band-gap semiconductor particles may have a small impact on the global cycle of mercury in the environment. The potential environmental consequences of mercury interactions with band-gap semiconductor oxides are discussed. Heterogeneous photooxidation might impact the global transport of elemental mercury emanating from flue gases.

show abstract

“…The empty bed residence time (EBRT), calculated as empty bed volume divided by volumetric gas flow (at 150 C), was 0.48 s in all experiments. While flue gas temperatures can reach 1400 C (Granite et al, 1998), many previous studies have been made in the range of 121e177 C to simulate typical temperatures seen in the gas treatment systems after initial cooling (Carey et al, 2000;Granite et al, 1998).…”

Section: Mercury Adsorptionmentioning

confidence: 99%