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8/19/2019 FGD Overview
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Purpose of FGDurning of fuels like Coal & oil produces a colourlesas - Sulphur Di-Oxide.
o2 is ver har!ful "o "he environ!en" & #e kno# "ha" causes $cid %ain har!ful "o plan"s & environ!en".
e!ploing FGD uni"s' S(2 e!issions are cu" do#nhus #e #ill s"rive closer "o a clean environ!en".
his is achieved in "he FGD Sea#a"er *a"er )rea"!en"
lan"S*)P #here "he oxida"ion is carried ou"
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)PS OF FGD/.D% )P
2.*) )P
* *011 D0SCSS %G$%D03G *) )P FGDSS)4.
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Purpose of FGD )he SO2 a5sor5ed in "he sea#a"er is oxidi6ed
"o har!less sulpha"e prior "o discharge "osea.
)his is achieved in "he FGD Sea#a"er *a"er )rea"!en" Plan" + S*)P, #here "he oxida"ionis carried ou" 5 5lo#ing air in"o "he sea#a"er
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!ission Guaran"eesSo2 %e!oval - 7 89:
)o"al $ir ;o# - (("?h,
Ph - 7 >.<
DO Dissolved Oxgen - 7 >( : @ 2(- 2< Deg C
S"ack 0nle" Gas )e!p - 7 A( Deg C
Sea *a"er )e!pera"ure rise - Deg C
Po#er Consu!p"ion - 2. 4* + uni"s,
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)he Process
Dus"
%e!oval
So2
$5sorp"ion %ehea"
Sea *a"er )rea"!en" Plan"
)rea"ed Sea
$irSea*a"er
Sea*a"er
)rea"ed
GasFlue Gas
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FGD Ss"e! Co!prises
Gas Circui"Boos"er fanGG$5sor5erChi!ne
*a"er Circui"Feed *a"er For#arding +FFP, Pu!p ouse$era"ion Pond
Sea#a"er )rea"!en" Plan"Che!ical Do6ing +3aO,
$era"ion Fans
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%eac"ion
$5sorp"ionSO2 E 2O SO2- E 2E
So2 is a5sor5ed in sea #a"er
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%eac"ion
Oxida"ionSO 2- E /?2O2 SO
2-
+Sulpha"e ions,
SO 2- Consu!es oxgen "ofor! sulpha"e
Sea *a"er is fur"her oxgena"ed
"o co!ple"e "he oxida"ion
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8/19/2019 FGD Overview
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8/19/2019 FGD Overview
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Gas Circui"
138 Deg C
78Deg C
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S e a * a " e r 0 n
S e a * a " e r
O u "
) o C h i ! n e FGD 0nle"
Da!per
FGD BpassDa!per
Ou"le" Da!per
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Boos"er Fan )pe of Fan - $xial Flo#
Blade )pe - Haria5le Pi"ch Blade
%a"ed Capaci" - 2$!p.
%a"ed Po#er of 4o"or - /9(( I#
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GGGas to Gas Heater
$s "he na!e i!plies i" "akes hea" fro! "he ho"
;ue gas and rehea" "he clean ;ue gas co!ing
ou" of "he a5sor5er le" i" "o "he chi!ne
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GG )pe - Bi-Sec"or
ea"ing Surface area - 8>(( sJ.!
Speed of ro"a"ion - /.< rp!
Drive - 4o"or Driven
SOO) B1O*% - 3OS +2 pper?2 lo#er,
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8/19/2019 FGD Overview
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$5sor5er$5sor5er is a concre"e s"ruc"ure #hich houses
"he sea #a"er dis"ri5u"ion pipes & Kll packs
0" ac"s like a cooling "o#er
Flue gas "o Sea#a"er in"erac"ion "akes place
$nd So2 is a5sor5ed fro! ;ue gas 5 sea#a"er and clean gas leaves "o GG
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$5sor5er
F * " P
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Fee *a"er Pu!p ouse+FFP,
0" "akes #a"er fro! sea #a"er reservoir
Pu!ps "he #a"er "o $5sor5er.
$f"er reac"ing #i"h Sox #a"er is sen" "o
aera"ion 5asin for dilu"ing "he eLuen" #a"er.
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FFPCapaci" - 8(( cu!?hr
ead - 8.< !
Speed - A( rp!
4o"or Capaci" -
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$era"ion Fans - Func"ion )akes air fro! a"!osphere
Pressurises and send "he air "o dis"ri5u"ionpipes #hich are su5!erged 5 "he eLuen"#a"er fro! a5sor5er.
)here5 Dissolved oxgen is increased in "he#a"er discharged "o ou"fall channel.
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8/19/2019 FGD Overview
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$era"ion Fans - Spec )pe - %adial Flo# Fan
Flo# -
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Che!ical Do6ing Ss"e!
)o dose "he Caus"ic in "he sea #a"er af"er Sox
a5sorp"ion.
0" 5oos"s "he p value of sea #a"er.
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FGD-S)$%) P
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FGD-S) DO*3 )he Shu" do#n of FGD is done in "#o s"ages.
S"age /= S"op FGD fro! gas side
S"op "he FGD Boos"er Fan
Close "he inle" da!pers ' "hen
Close "he FGD ou"le" da!per
S"age 2= S"op FGD fro! Sea#a"er side
S"op a5sor5er pu!p.
S"op "he aera"ion fans.
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FGD )%0PP03G CO3D0)0O3S/, $5sor5er #a"er ;o# +4agne"ic F 4,M
/
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Si!ple & relia5le
Proven )echnolog
ses onl sea #a"er & air
3o 5-produc" handling
Full au"o!a"ed opera"ion
4ee"ing e!ission s"andards
BeneK"s? Fea"ures of
S*FGD
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F1 G$S SS)4
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Sea #a"er suppl
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$5sor5er ss"e!
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G$S )O G$S $) C$3G
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Sea #a"er "rea"!en"+aeara"ion,
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Da!per Seal $ir Ss"e!
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)hank ou