Coal Conversion Technology

Coal Conversion Tech. Trend • Stable & Economic Electric Power Supply high efficiency, large scale [SC/USC]

• CO2 Reduction Measures Preparation high efficiency, Co-combustion, CCS Optimum Tech. : CFB Conversion Tech. : optimum for fuel flexibility : highly adaptable to SC/USC Once-Thro.

CFB Market Prospect • Since ’95, more than 500 CFB units BD • Increase of SC[USC] CFB : ‘11~’18, - CFB annual growth - 12% - SC[USC]-CFB annual growth - 36% • Increase of CFB market share : more than 17% market share to ‘20

FB Market Growth in the World

Ref) Doosan HI Report, Korea, 2014 Ref) Carl Bozzuto, Alstom, France, 2007

Status of CFB in the World

Note) CFB total unit and capacity from 1980 to 2013: 1145 Units, 116.5GW / Based on Construction Stat Year [ ‘14 McCoy Report Data]

Prospect of FB Technology in Korea [Fuel Flexibility & CO2 Reduction with High Eff.]

Ref) Arto Hotta, FW, Oxy Fuel Combustion Conference, Spain, 2013 Ref) B. Leckner, 1st Project Conference AGS, Sweden, 2006

Ref) J. Koornneef, et al., Prog. In Energy & Comb. Sci., 2006 Ref) Presented by IEA-CCC, 2010

CFB Boilers in Korea

Company / Location(City) Year Capacity

(steam t/h or MWe) Fuel Category

Supplier /Design

Oriental Chemical / Incheon 1984 120 t/h Coal Co-Gen Hyundai HI/ Ahlstrom

SK / Suwon & Ulsan 1988/89 25/200 t/h Coal Co-Gen Hyundai HI/ Ahlstrom

LG / Yeocheon 1989 210 t/h Coal Co-Gen Hyundai HI/ Ahlstrom

Hyundai Oil / Daesan 1989 120 t/h Coke Co-Gen Hyundai HI/ Ahlstrom

Petrochemical Service Co./Uls

an 1990 250 t/h Coal Co-Gen Hyundai HI/ Ahlstrom

Dyeing Complex / Busan 1991 80×2 t/h Coal Co-Gen Daewoo HI

Korea Energy / Onsan 1991 175 t/h Coal Co-Gen Doosan/Lurgi

Sam Yang GENEX / Incheon 1990 60 t/h Coal Co-Gen Hyundai HI/ Ahlstrom

EWP/ Tonghae 1998/99/

2013

693 t/h ×2 (200 MWe ×2) /

30MWe

Anthracite

+Biomass/

Biomass Electric

Doosan/Alstom/

Andritz /Posco

Kumho Petrochem. / Yeosu 2003 305 t/h Coal Co-Gen Hyundai HI

Dyeing Complex / Daegu 2004 160 t/h Coal Co-Gen Hyundai HI

Gunjang Energy / Gunsan 2007/ 2010

200 t/h × 2 / 250 t/h

Coal Co-Gen Hyundai HI

Hanhwa Energy / Yeosu 2009 400 t/h × 3 Coal Co-Gen F/W

CFB Boilers in Korea

Company / Location(City) Year Capacity

(steam t/h or MWe) Fuel Category

Supplier /Design

BASF/ Gunsan 2009 180 t/h Coal Process Hyundai HI

Hansol / Jeonju 2010 10 MWe Biomass/ RPF Co-Gen AF Sweden (BFB)

Gunjang Energy #3, #4 /

Gunsan 2011/ 2014

250 t/h × 2 Coal /Pet. Coke Co-Gen Hyundai HI

KOSEP / Yeosu 2011 / 2016

1040 t/h × 2 (340MWe × 2)

Coal/Biomass Electric Doosan

Yeosu Co-gen Plant /

Yeosu 2012 350 t/h × 2 Coal Co-Gen Hyundai HI

Hyundai Oil Bank

#8, #9, #10 / Daesan 2012/2014

/2017 220 t/h × 2 330 t/h × 1

Pet. Coke Co-Gen Hyundai HI

Gimcheon Community

Energy / Gimcheon 2012 330 t/h Coal Co-Gen Hyundai HI

Han Ju Corp. / Ulsan

2015 250 t/h Coal Co-Gen Hyundai HI

GS EPS /

Dangjin 2015 105 MWe Biomass Electric FW

KOMICO / Wonju 2015 10 MWe RDF Co-Gen Hansol Seentec

/ KIER

OCI/

Gunsan 2015 150MWe × 2 Coal Co-Gen Doosan /FW

KOSPO / Samcheok 2016 1,572 t/h × 4

(500MWe × 4) Coal/

Biomass Electric Hansol Seentec /FW

Hansol / Jeonju 2017 30 MWe Biomass/ RPF Co-Gen Kawasaki

(ICFB)

Hanhwa Energy / Gunsan 2018 100MWe Coal Co-Gen FW

Cebu CFB Donghae CFB Yeosu CFB Samcheok CFB

Capacity • 100MW x 2units

Commercial Op. • #1 : ’11. 2 • #2 : ’11. 5

Designer • Foster Wheeler

Feature • Compact Cyclone • INTREX • Sub-bituminous • Prob.: Erosion

Capacity • 200MW x 2units

Commercial Op. • #1 : ’98. 9 • #2 : ’99. 9

Designer • Alstom

Feature • FBHE • FBAC • Korean Anthracite • Prob.: Coal supply

Capacity • 300MW x 2units

Commercial Op. • #1 : ‘16. 9 • #2 : ’11. 10

Designer • Foster Wheeler

Feature • Compact Cyclone • w/o INTREX • Wingwall Tube • Prob.: Erosion etc

Capacity • 2units [550MW x 2-CFB x 1-Turbine]

Commercial Op. • #1 : ’16. 12 (Commi.) • #2 : ’16. 12 (Cons.)

Designer • Foster Wheeler

Feature • SC-CFB type • 257bar/603oC • 3,900 kcal/kg

KEPCO group is aiming to expand overseas business further based on its experience. Philippines, South Africa, Botswana, Vietnam, Indonesia, China(Shanxi Province), etc

0 1 2 3 4 5 6

To

tal P

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Dro

p [m

mH

2O

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1200

1300

1400

1500

1600

RDF Co-Combustion Ratio [%]

0 1 2 3 4 5 6Mid

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p [m

mH

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460

480

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Up

pe

r P

art

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[m

mH

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120

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we

r P

art

Pre

ssu

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rop

[m

mH

2O

]

960

990

1020

1050

1080

1110

Total Pressure Drop

Lower Part Pressure Drop

Upper Part Pressure Drop

Middle Part Pressure Drop

Backpass

Coal Silo

Boiler

Cyclone

FBAC

FBHE

Primary Air

Air

Air

Solid Flow

Air

Solid Flow

Gas Flow

Gas Flow

Windbox

DongHae CFB Boiler (200MWe x 2)

DongHae Biomass CFB Boiler (30MWe)

Boiler Spec. 30MWe CFB type (107 ton/h, 97 kg/cm2, 510oC) Construction Designed by Andritz (Constructed by POSCO E&C.) Fuel : Bio-SRF (Bio-Solid Refuse Fuel, Wood Chips) Experienced Problems Fouling / Tube Erosion & Corrosion Poor Fluidization due to Clinker Formation

YeoSu CFB Boiler (340MWe x 2)

SamCheok CFB Boiler (500MWe x 4)

Now, #1 and #2 Units are Under Commissioning Period Successful operation of #1 unit, up to full load (1,000MWe), in mid-Oct. Plan to achieve commercial operation by the end of this year.

Experiences in Commissioning Period Explosion in the coal chain conveyors due to coal dust/volatiles (start up) Damage of refractory in the INTREXs/at the cyclone inlet (construction problem) Now, they are in the process of optimization of the operation.

Major Research Projects in Korea

Other Business Projects in Korea under Review

USC-CFB Development by KEPCO & Doosan Group Capacity : 600MWe (steam condition - more than 600 oC/250 bar) Fuel : Co-combustion of more than 20% of Bio-SRF Plan to model development and design completion by the end of 2018 to demonstration of this after 2018 in Korea

CLC(Pressurized) and Oxygen Carrier Development by KIER & KEPCO Capacity : 0.5MW Pressurized CLC Technology (Basic Study) Object : Reactor and Process Design/ Oxygen Carrier Development Research Period : Phase I (‘16~’19)

FEP(Future Energy Plant) Development by KIER with Several Government Funded RIs Object : High efficiency & CO2 capture for Future Power Generation Main Tech. : Oxy Fuel CFB / USC / Environment (PM 2.5, SO2, NOX) / Water Recovery Research Period : Phase I (‘16~’18) & Phase II (‘19~’21)

100MWe x 2 units of Biomass CFB Boilers by KHNP co. Several SRF(RPF and RDF) and Bio-SRF CFB boilers by KEPCO Subsidiaris

Cold model CFB

Design Program (by KEPCO) IEA-CFBC Model Commercial Program Tools

CFB Combustor Diagnosis on Fluidization Fuel kinetics