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kg S/GJ. 0.13 – 0.30. 0.30 – 0.52. kg Hg/PJ. 0.52 – 0.73. 0.73 – 1.0. 0.9 – 1.7. 1.0 – 1.2. 1.7 – 2.6. 1.2 – 1.6. 2.6 – 3.9. 3.9 – 6.5. 6.5 – 12.9. Coal Province. Coal Province. Coal Province. Coal Province. 12.9 – 22.4. kg Cl/TJ. 1.3 – 11. 11 – 22. 22 – 32. 32 – 43. 43 – 86.

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Slide1 l.jpg

kg S/GJ

0.13 – 0.30

0.30 – 0.52

kg Hg/PJ

0.52 – 0.73

0.73 – 1.0

0.9 – 1.7

1.0 – 1.2

1.7 – 2.6

1.2 – 1.6

2.6 – 3.9

3.9 – 6.5

6.5 – 12.9

Coal Province

Coal Province

Coal Province

Coal Province

12.9 – 22.4

kg Cl/TJ

1.3 – 11

11 – 22

22 – 32

32 – 43

43 – 86

86 – 140

UNDERSTANDING MERCURY IN USA COAL – A GEOGRAPHIC APPROACH

Jeffrey C. Quick, Utah Geological Survey

Web site: http://geology.utah.gov/emp/mercury/index.htm

Email: jeffreyquick@utah.gov

Mercury

Chlorine

1999 coal production, ICR 2 data, by county

1999 coal production, ICR 2 data, by county

Coal Rank/Heat Value

Sulfur

1999 coal production, FERC 423 data, by county

*coal rank per EIA form 423 instructions

1999 coal production, FERC 423 data, by county


Slide2 l.jpg

Ceno-

zoic

Mesozoic

Million Years Ago

Paleozoic

Chlorine increases mercury capture

by existing emission control technology.

The significance of the coal mercury content depends

on the emission control technology at the power plant.

Hg emissions out stack

(kg/PJ)

Hg in coal

(kg/PJ)

Points show predicted capture for USA county-average, ICR 2 data, modified from Toole O’Neil et al., (2005).

Points show different electric power plants,

modified from Quick et al., (2005), ICR 3 data.

Sulfur reduces mercury capture

by existing emission control technology.

Chlorine in USA coal varies with rank,

but is better explained by geologic age.

ASTM

rank

cold electrostatic precipitator,

wet desulphurization

[ x ] = %S (dry)

cold electrostatic precipitator

( x ) = kg S/GJ

Points show USA

county-average

ICR 2 data,

modified from

Kolker et al.,

(in press).

Constructed using EPRI and SAIC

equations listed by Quick (2006).

References

ICR 2 (1999) 25,825 coal assays <epa.gov/ttn/atw/combust/utiltox/utoxpg.html>

ICR 3 (1999) 240 power plant stack emission measurements <epa.gov/ttn/atw/combust/utiltox/utoxpg.html>

FERC 423 (1999) 19,507 coal assays <eia.doe.gov/cneaf/electricity/page/ferc423.html>

Kolker, A., Senior, C.L., Quick, J.C., (in press),Mercury in coal and the impact of coal quality on mercury emissions from combustion systems: Applied Geochemistry.

Quick, J.C., Tabet, D.E., Wakefield, S., Bon, R.L., 2005, Optimizing technology to reduce mercury and acid gas emissions: DOE contract DE-FG26-03NT41901, <geology.utah.gov/emp/mercury/index.htm>

Quick, J.C., 2006, Erratum - Correction to an equation used in . . . : Int. J. Coal Geol., v.66, p.155-156.

Toole O’Neil, B., Quick, J.C., Akers, D., 2005, Mercury in US Coal and the US EPA Clean Air Mercury Rule: Oil Gas and Energy Law Intelligence, v. 3, 14 p. <www.gasandoil.com/ogel/>

after USGS