Circulating Dry Scrubber
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Circulating Dry Scrubber Technology / Reference Projects
Transcript of Circulating Dry Scrubber
Circulating Dry ScrubberTechnology / Reference Projects
Technology
Process Design – Process Conduct
Advanced CDS Technology (BLUESORP ®)
Back in 2007 Hamon started todevelop their own CFD simulationtools in order to understand andespecially further improve the CDStechnology. With the support of plantoperators at different plants, theresults of the CFD simulation werevalidated at various load cases.
As a consequence of the CFDsimulations the weak points of thetechnology could be identified andthe operation of the CDS plant was
adopted to the newrecommendations, which deleted theproblem of high moisture content inthe product and the relatedblockages inside the CDS system. Inaddition the potential for furtherimprovement by changing the venturisection design and the waterinjection system was identified.
Implementation of BLUESORP ®
MODIFICATION OF VENTURI NOZZLES MODIFICATION OF WATER INJECTION
In 2012/2013 the design changes for the venturi section and the water injection systemwere installed at the CDS plant at Plzeňská teplarenská / Czech Republic. The successfulimprovement of the plant and other CDS developments
Based on the successful executed improvements HAMON´s semidry BLUESORP ®
technology is offering a much more reliable operation at all boiler load cases. Followingthe optimized process the lime consumption (molar ratio) can be significantly reduced.
Operation of BLUESORP ®
Increase of efficiency
Uniform temperature distribution
distance to dew point reduced bymore than 10 degrees C
reduction of stoichiometry
water
injection
raw gas
inflow
water
injection
water
injection
water
injection
water
injectionwater
injection
Advanced CDS Technology (BLUESORP ®)
SIMULATED SOLID TRACKS AND SOLID VOLUME FRACTION SOLID FEED AREA DURING OPERATION
SOLID HANDLING WITH AIR SLIDES AND ROLLER GATE VALVE BETWEEN
THROUGH HOPPER AND ABSORBER
Reference – KARVINA / VEOLIA / CZ
Parameter Unit Data
Date of award - 02.2013
Size MWth 3 x 62.5
Fuel / S-content - / % hard coal / 1.0
Volume flow Nm3/h 460,000
SO2 raw gas mg/Nm3 3,000
SO2 clean gas mg/Nm3 ≤ 190
SO2 removal % ≥ 93.7
Dust clean gas mg/Nm3 ≤ 18
Absorbent - lime
FGD product - dry product / landfill
Reference – ALLIANT / LANSING / USA
Parameter Unit Data
Date of award - 02.2013
Size MWth 1 x 275
Fuel / S-content - / % PRB / NN
Volume flow Nm3/h 1,121,200
SO2 raw gas mg/Nm3 4,400
SO2 clean gas mg/Nm3 ≤ 90
SO2 removal % ≥ 98
Dust clean gas mg/Nm3 ≤ 15
Absorbent - lime / hydrated lime
FGD product - dry product / landfill
Reference – PUNTA C. / CDEE / DOM
Parameter Unit Data
Date of award - 06.2014
Size MWth 2 x 360
Fuel / S-content - / % coal / NN
Volume flow Nm3/h 2 x 1,095,000
SO2 raw gas mg/Nm3 up to 5,290
SO2 clean gas mg/Nm3 ≤ 400
SO2 removal % ≥ 92.5
Dust clean gas mg/Nm3 ≤ 30
Absorbent - lime / hydrated lime
FGD product - dry product / landfill
Reference – G4 SEAGULL / eTEC / KOR
Parameter Unit Data
Date of award - 07.2014
Size MWth 1 x 300
Fuel / S-content - / % coal / NN
Volume flow Nm3/h 1 x 996,300
SO2 raw gas mg/Nm3 up to 250
SO2 clean gas mg/Nm3 ≤ 50
SO2 removal % ≥ 80
Dust clean gas mg/Nm3 ≤ 8
Absorbent - hydrated lime
FGD product - dry product / landfill
Reference – G-II / HANWHA / KOR
Parameter Unit Data
Date of award - 03.2016
Size MWth 1 x 100
Fuel / S-content - / % coal / NN
Volume flow Nm3/h 1 x 444,600
SO2 raw gas mg/Nm3 up to 350
SO2 clean gas mg/Nm3 ≤ 70
SO2 removal % ≥ 80
Dust clean gas mg/Nm3 ≤ 5
Absorbent - hydrated lime
FGD product - dry product / landfill
Reference – Steel / thyssenkrupp / D
Parameter Unit Data
Date of award - 03.2018
Size MWth N/A
Fuel / S-content - / % waste gas
Volume flow Nm3/h 1 x 950,000
SO2 raw gas mg/Nm3 up to 850
SO2 clean gas mg/Nm3 ≤ 300
SO2 removal % ≥ 65
Dust clean gas mg/Nm3 ≤ 5
Absorbent - hydrated lime
FGD product - dry product / landfill
Christian MoserManaging Director
Alte Wittener Strasse 30
44803 Bochum
Germany
Tel : +49 234 62209-220
Mobile : +49 172 283 7292
E-mail : [email protected]
