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Lifecycle Environmental Evaluation of Exploitation & CO 2 Sequestration of Coal. by SAGISAKA M. Life Cycle Assessment Research Centre, National Institute of Advanced Industrial Science & Technology (AIST), JAPAN. Electric Power Generation. Bauxite. Iron Ore. Coal. Aluminum. Oil. Import.

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lifecycle environmental evaluation of exploitation co 2 sequestration of coal

Lifecycle Environmental Evaluation ofExploitation & CO2 Sequestration of Coal

bySAGISAKA M.

Life Cycle Assessment Research Centre,National Institute of Advanced Industrial Science & Technology (AIST), JAPAN

slide2

Electric Power Generation

Bauxite

Iron Ore

Coal

Aluminum

Oil

Import

Oil Refinery

What is LCA ?

Electric Power Generation

Iron Works

Recycling

Car Factory

PlasticMaterials

Solid Wastes

scope of the investigation coal exploration extraction transportation
Scope of the InvestigationCOALExploration | Extraction | Transportation●
  • Energy : Electricity, Coal, Oils, CH4 , ・・・
  • Materials  : Steel (supports, tracks, pipes, ・・・)

 Cement, Timber, Plastics, ・・・・・

  • Equipment : Machines for Mining, Driving,  Transportation, Separation, ・・・・・
  • Buildings : Offices, Houses, Rooms, ・・・・・
slide5

82 kg-CO2/t-coal in 1999

(3.4 g-CO2/MJ-coal)

slide6

Item

Consumed quantity

Per ton of shipped clean coal produced

Commercial elec.

252

GWh

42.0

kWh/t

Kerosene

29

kl

0.00483

l / t

Light oil

10363

kl

1.73

l / t

Heavy oil

1160

kl

0.193

l/ t

Coal

160

k t

26.6

kg/t

Powder coal

68.2

k t

11.4

kg/t

Methane

5.4

Mm3

0.899

m3/t

Explosives

476

t

79.3

g/t

Domesticelec.*

273

GWh

45.5

kWh/t

Consumed energies for COAL production in Japan FY1999

*Used energies(coal, powder coal and heavy oil) for domestic energy production are included in each item.

slide7

Item

Consumed quantity

Per ton of shipped clean coal produced

Plastics (ABS)

Kerosene

16.1

75.1

kg

kl

0.003 g/t

0.014

l/t

Consumed materials for coal production in Japan FY1999

Steel

23.2

k t

3.8628

kg/t

Timber

33900

m3

0.00564

m3/t

Cement

11688.9

t

2.18

kg/t

Sand

39570.8

t

7.38

kg/t

Fly ash

16782.7

t

3.13

kg/t

slide9

Foreground Data

Use

Manufacturing

Disposal

Materials, Fuels, etc.

Fuels

Electricity

Mining

Back ground Data

Transparency, Impartiality, Consistency, …..

International Data Sharing

ecbmr environmental economical possibility
ECBMR- Environmental & Economical Possibility -

CO2+Air

Elec.Generation

Separation

CH4

Air

CO2

Transportation

CO2

CO2 Sequestration & CH4 Recovery

Transportation

slide12

Siberia Sakhalin (Russia)

China

Chikuho C.F.

Korea

Pacific Ocean

Power Plants; Coal

; LNG

Chikuho Coal FieldCO2 Supply & CBM (CH4) Demand

; Oil

IndustrialBoilers

ecbmr environmental economical possibility1
ECBMR- Environmental & Economical Possibility -
  • CBM Production

METSIM2(by Imperial College, UK)

  • Field

Chikuho Coal Field

  • Area

10km(E-W)×30km(N-S)

interval

Injection pattern

5 spot

Production Well

Injection Well

Extraction up to CO2<10%

slide14

Interval=10km

5km

2km

1km

CO2 Sequestration& CBM production

- Injection rate 585t-CO2/h- Well interval 2km

lifecycle co 2 emission
Lifecycle CO2 Emission

Balance:-100g-CO2/MJ

CBM Production + 6.5

CO2 Sequestration - 99

LNG (avoided) - 7.8

7.8g-CO2/MJ (imported LNG)

cost analysis
Cost Analysis

Operation(million JYN)

Capital(million JYN)

+ Costs for Labour, Management, Tax

Revenue:

CBM Price = imported LNG (average ’91-’00) excl. sequestrated CO2

lca for mining ex coal
LCA for Mining ex. coal

Exploration

Mine

Development

Coal

Waste Treatment

Production

Transportation

Combustion

Closure

Eco-Efficiency of a Mine

Service、Benefit

Profit or Total Sales

Environmental Impact

LCIA

lca for mining ex coal1
LCA for Mining ex. coal
  • CBM Extraction fromVirgin Coal Seam
  • Coal + CBM Extraction
  • ECBMR from Deep Seamand/or Abandoned Mine

Exploration

Mine

Development

Production

Closure

Eco-Efficiency of a Mine

Benefit

Profit or Total Sales

Environmental Impact

LCIA

slide20

Triple Bottom Line for Sustainable Development

Social Performance

SafetyEmploymentSocial Development

CulturePoverty, PeaceHuman Rights …..

MiningOperations

  • International Cooperation
  • Methodology
  • Data Sharing

DustNoise, VibrationWater Treatment…….

ProfitTaxInvestment

GlobalEnvironment………

Environmental Performance

Economic Performance

lifecycle environmental evaluation of exploitation co 2 sequestration of coal1

Lifecycle Environmental Evaluation ofExploitation & CO2 Sequestration of Coal

bySAGISAKA M.

Life Cycle Assessment Research Centre,National Institute of Advanced Industrial Science & Technology (AIST), JAPAN