OBE,
I agree 4% is not much.
Here is what THEY claim in the States on dryer lignite.
Great River Energy’s Coal Creek Station, a 1,180-megawatt lignite coal-fired plant in North Dakota, has used DryFined lignite since 2009. Lignite coal is enhanced using the waste heat from the power plant, which has improved efficiency and emissions performance:
• Reducedfuelmoisturefrom38to29percent(notlimited)
• Increasedheatingvaluefrom6,200to7,100Btu/lb
(returns the fuel to the boiler design value)
• Reducedfuelinputby4percent
• Increasedoverallplantefficiencyby4percent
• Reduced emissions:
– Sulfurdioxide(SO2)by40percent
– Mercury(Hg)byabout40percent
– Nitrogenoxide(NOx)bymorethan20percent – Carbondioxide(CO2)by4percent
Not much reduction in CO2, but a reasonable reduction in SO2 .
agl - whose the drier...it ain't difficult, page-2
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