LCA of an 882 MW Coal-fired. and Storage Option

Transcription

1 LCA of an 882 MW Coal-fired Power Plant with CCS: CO 2 -EOR and Storage Option Anastassia Manuilova Jitsopa Suebsiri Malcolm l Wilson Environmental Impact of Amine Emission During Post Combustion Capture February 16, Oslo, Norway

2 Background Introduction ti CO 2 is considered to be the principal greenhouse gas In order to reduce GHG impact, CO 2 can be captured and stored geologically Nature of the problem Processes should be studied from a life cycle perspective to obtain the total picture and make comparisons to other GHG emissions reduction alternatives

3 Goal of the study Understand implications of Carbon Capture and Storage (CCS) activities Study environmental performance of power plant with and without CO 2 capture Conduct a LCA study of CCS system consisting of 882MW power plant with a CO 2 post combustion capture unit, CO 2 transport and CO 2 - EOR operations and storage, operations at the refinery and product use

4 System boundaries Coal mining Surface coal mining in Saskatchewan Lignite CO 2 capture SaskPower s Boundary Dam Power Station CO 2 transport 1 km pipeline CO 2 storage CO 2 -Enhanced Oil Recovery, Weyburn oil field Functional unit: 1 GJ of energy produced

5 System boundaries

6 Boundary Dam Power Station Capacity: 882 MW 6Units (66;66;15;15;15; 3 MW) Retrofit of Unit 3 (15 MW) + FGD and CO 2 postcombustion capture In service 213 Courtesy of Saskatchewan Power Corporation

7 Steam N2, CO 2,Water NOx, SOx,Traces PM, Traces Hg 139 MW COAL FURNACE AIR HTR ESPESP S T A C K ASH, Unit 3 Conventional Pulverized Coal Unit Waste Storage Courtesy of Saskatchewan Power Corporation

8 Steam Limestone N2,Water Minor NOx, CO2 Traces: PM, Hg, 95-1 MW COAL FURNACE AIR HTR ESP Heat Recovery Loop FGD CO2 Absorber S T A C K Waste Storage ASH, CaSO 4.H 2 O (Gypsum) Reboiler e Compressor EOR Grade CO 2 Courtesy of Saskatchewan Power Corporation Unit 3 Retrofit PERMANENT GEOLOGICAL STORAGE 25

9 Storage option: CO 2 -EOR WEYBURN OIL FIELD 1 km 5 km Courtesy of Saskatchewan Power Corporation Boundary Dam Power Station

10 Weyburn oil field production history

11 Analysis Comparison of the following scenarios: Power plant without capture Power plant with unit 3 retrofit: capture (Unit 3 15MW) Power plant with capture (all 6 units 882MW)

12 Results Power plant without capture Retrofit (capture only from Unit 3 (15 MW)) Power plant with capture (882 MW) GWP kg CO O2-equiv/M MWh (-15%) (-87%) No capture Retrofit Capture Mining Construction Operations

13 Results Power plant without capture Retrofit (capture only from Unit 3 (15 MW)) Power plant with capture (882 MW) Power output, MWh MWh (-5%) (-33%) No capture Retrofit Capture

14 Results Case 1 Capacity loss - retrofit 7% 1% 4% 88% Pow er output Boiler+ESP FGD CO2 capture 27% Capacity loss - capture 4% 7% 62% Pow er output Boiler+ESP FGD CO2 capture

15 Decrease in other Impacts Acidification Human Health Air-Point Source mo ol H+ equiv kg PM2.5 equiv No capture Retrofit Capture No capture Retrofit Capture Coal surface mining PP operation with and w/o CO2 capture PP construction w ith and w /o capture unit Coal surface mining PP operation with and w/o CO2 capture PP construction w ith and w /o capture unit

16 Increase in other impacts Human Health Non Cancer Water Eutrophication 3.3 kg k Toluene equiv kg N equiv No capture Retrofit Capture No capture Retrofit Capture Coal surface mining PP construction w ith and w /o capture unit Coal surface mining PP construction w ith and w /o capture unit PP operation w ith and w /o CO2 capture PP operation w ith and w /o CO2 capture Human Health Non Cancer Air Ecotoxicity Water kg Toluen e equiv No capture Retrofit Capture kg 2,4-Dichlorophe enoxyace equiv No capture Retrofit Capture Coal surface mining PP construction w ith and w /o capture unit Coal surface mining PP construction w ith and w /o capture unit PP operation w ith and w /o CO2 capture PP operation w ith and w /o CO2 capture

17 +/- Impacts per MWh Impact of retrofiting CO2 post combustion capture 8 6 Ecotoxicity Eutrophication (air) Human health non cancer 4 2 % Chan nge Acidification Energy output Human health (air point) -8-1 GWP

18 TRACI, Eutrophication [kg N-Equiv.] 2.34 kg N-E Equiv Gross Per MWh kg N-Equ uiv./mwh Original Capture -

19 GaBi diagram:power plant without CO2 capture - Outputs CML21 - Dec. 7, Abiotic Depletion (ADP) [kg Sb-Equiv.] CML21 - Dec. 7, Acidification Potential (AP) [kg SO2-Equiv.] CML21 - Dec. 7, Eutrophication Potential (EP) [kg Phosphate-Equiv.] CML21 - Dec. 7, Global Warming Potential (GWP 1 years) [kg CO2-Equiv.] CML21 - Dec. 7, Ozone Layer Depletion Potential (ODP, steady state) [kg R11-Equiv.] CML21 - Dec. 7, Photochem. Ozone Creation Potential (POCP) [kg Ethene-Equiv.] 1 - Dec. 7, Experts IKP (S Southern Europe) CML2 1.6e-5 1.4e-5 1.2e-5 1.e-5.8e-5.6e-5.4e-5.2e-5.e-5 -.2e-5 Pow er plant w ithout CO2 capture GaBi diagram:power plant with CO2 capture - Outputs CML21 - Dec. 7, Abiotic Depletion (ADP) [kg Sb-Equiv.] CML21 - Dec. 7, Acidification Potential (AP) [kg SO2-Equiv.] CML21 - Dec. 7, Eutrophication Potential (EP) [kg Phosphate-Equiv.] CML21 - Dec. 7, Global l Warming Potential ti (GWP 1 years) [kg CO2-Equiv.] CML21 - Dec. 7, Ozone Layer Depletion Potential (ODP, steady state) [kg R11-Equiv.] CML21 - Dec. 7, Photochem. Ozone Creation Potential (POCP) [kg Ethene-Equiv.] CML21 - Dec. 7, Experts IKP (Southern Europe) 2.e-6 1.5e-6 1.e-6.5e-6.e-6 -.5e-6-1.e-6-1.5e-6-2e-6 2.e -2.5e-6-3.e-6-3.5e-6 Power plant with CO2 capture

20 CML method Normalization per MWh Original Normalization capture Normalization.1.5 Acidification Potential Eutrophication Potential Global Warming Potential

21 ) GBidi GaBi diagram:power plant without tco2 capture - Outputs Ot t EDIP 23, Acidification potential [m2 UES] EDIP 23, Aquatic eutrophication [kg NO3-Equiv.] EDIP 23, Global warming [kg CO2-Equiv.] EDIP 23, Photochemical ozone formation - impact on human health and materials [pers*ppm*hours] EDIP 23, Photochemical ozone formation - impact on vegetation [m2 UES*ppm*hours] EDIP 23, Stratospheric ozone depletion [kg R11-Equiv.] EDIP 23, Terrestrial eutrophication [m2 UES] 13 EDIP 23, Env. imp. eval. (PE ET W, EU 24) Pow er plant w ithout CO2 capture GaBi diagram:power plant with CO2 capture - Outputs EDIP 23, Acidification potential [m2 UES] EDIP 23, Aquatic eutrophication [kg NO3-Equiv.] EDIP 23, Global warming [kg CO2-Equiv.] EDIP 23, Photochemical ozone formation - impact on human health and materials [pers*ppm*hours] EDIP 23, Photochemical ozone formation - impact on vegetation [m2 UES*ppm*hours] EDIP 23, Stratospheric ozone depletion [kg R11-Equiv.] EDIP 23, Terrestrial eutrophication [m2 UES] 55 v. imp. eval. (PET W, EU 24 EDIP 23, Env Power plant with CO2 capture

22 EDIP method EDIP Normalization per MWh Orignal Capture Acidification potential Aquatic eutrophication Global warming Terrestrial eutrophication

23 Financial support Thank you IPAC-CO2 Office of Energy and Environment at the University of Regina Jitsopa Suebsiri: Anastassia Manuilova:

24 Thank You