DryFiningTM Technology & Efficiency Improvements
DryFining
TM
Technology
DryFining
TM
improvements
NOx
Contaminant
Removal
Less Moisture and
Contaminants means:
How it works
DryFining impacts
10% less fuel
– reduces O&M on fuel handling
54% less SO
2
- Segregation of ash minerals, plus
improved collection efficiency
40% less Hg
-
Segregation of ash minerals, plus improved
collection efficiency
32% less NO
X
-
Reduced volumetric release rate,
improved air & fuel distribution to furnace
4% less CO
2
-
4% improved cycle efficiency
$20+ million in annual O&M savings
Efficiency improvement
Source: EPRI Report: 1015698, CoalFleet Guideline for Advanced PC Power Plants
DryFining results at Coal Creek
Conferences, journal articles & awards
Marketing agreements:
Black & Veatch
In discussion with others
International recognition
Thank you!
7
I am briefly going to describe a commercially available technology developed and patented by GRE which is being used on coal consumed 2 of our coal plants in ND. The technology involves an innovative use of waste heat to reduce moisture in the coal prior to combustion as well as a segregation technology removing higher density impurities in the coal prior to combustion. These two improvements (moisture removal and contaminant removal through segregation) primarily using waste heat is increasing plant efficiency, decreasing air emissions and saving the plant money in O&M costs through less wear and tear.
DryFiningTM Technology offers advancements in fuel efficiency by reducing moisture and contaminants, leading to improved pollutant removal. With impacts such as reduced fuel usage, lower emissions, and significant cost savings, this technology is a game-changer in the energy sector. Additionally, efficiency improvements through Ultra-Supercritical technology further enhance performance and sustainability in power plants. The results and recognition garnered by DryFining at Coal Creek demonstrate its efficacy and potential for widespread adoption in the industry.
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Presentation Transcript
DryFiningTM improvements Less Moisture and Contaminants means: Contaminant Removal NOx
DryFining impacts 10% less fuel reduces O&M on fuel handling 54% less SO2 - Segregation of ash minerals, plus improved collection efficiency 40% less Hg- Segregation of ash minerals, plus improved collection efficiency 32% less NOX- Reduced volumetric release rate, improved air & fuel distribution to furnace 4% less CO2- 4% improved cycle efficiency $20+ million in annual O&M savings
Efficiency improvement Advanced Ultra-Supercritical at 1350F/1400F (732C/760C) Ultra-SuperCritical at 1250F/1292F (680C/700C) Low-T Fuel Drying Ultra-SuperCritical at 1120F/1120F (604C/604C) Dual Reheat Natural Draft Cooling Tower Reduce cooling tower approach temperature Low-T Air Pre-heating Low-T Feedwater Pre-heating Reduce Air Heater Leakage (6% to 1%) 0.00% 2.00% 4.00% 6.00% 8.00% 10.00% 12.00% 14.00% 16.00% Source: EPRI Report: 1015698, CoalFleet Guideline for Advanced PC Power Plants
DryFining results at Coal Creek Conferences, journal articles & awards Marketing agreements: Black & Veatch In discussion with others International recognition
