experimental investigation and model validation on the
TRANSCRIPT
Activity 8 5 min July 18 20111
Experimental Investigation and Model Validation on the Effects of Impurities on CO2 Separation using a Bench-scale High
Pressure CO2 Test Cell
Zero Emission Technologies (ZET) Group Clean Electric Power Generation
CanmetENERGY, Natural Resources Canada
Outline
Capture and Compression Unit (CO2CCU). CanmetENERGY’s CO2 Capture and Compression
Unit (CO2CCU). CanmetENERGY’s high pressure CO2 bench-scale
test facility Preliminary test results from the high pressure CO2
bench-scale test facility Concluding remarks.
3
/Bitumen/Syngas
Air-Combustion
Combustion
Oxy-Combustion
Transportation Fuels, Cement, Steel, etc.
CO2 Removal
Power & Heat
Pre-combustion Capture
Oxy-fuel Combustion
CO2 Removal
CO2 Removal
/Bitumen/Syngas
Air-Combustion
Combustion
Oxy-Combustion
Transportation Fuels, Cement, Steel, etc.
CO2 Removal
Power & Heat
Pre-combustion Capture
Oxy-fuel Combustion
CO2 Removal
CO2 Removal
5 - 15% CO2
*
*H. Li, Thermodynamic Properties of CO2 Mixtures and Their Applications in Advanced Power Cycles with CO2 Capture Processes, Doctorial Thesis, KTH, 2008.
An understanding of gas stream impurities underlies the compression, purification, transportation, and storage of CO2 and is key to effectively design, implement and operate CCS systems.
Motivation
4
Background
There is a great deal of information on pure CO2 and a reasonable degree of knowledge on CO2 mixtures of water, hydrocarbons, and H2S owing to interest from the natural gas processing industry.
By contrast there is relatively little information about CO2 mixtures containing O2, Ar, N2, and SO2, which are relevant to CCS processes.
Whatever data on CO2 mixtures that does exist in the open literature is outside the pressure and temperature ranges of interest for CCS systems.
Moreover, data for multi-gas CO2 mixtures is very scarce. EQS for CO2 mixtures of interest to CCS chain need to be revisited.
http://www.nasa.gov/vision/earth/technologies/harvestingmars.html
5
*
*H. Li, Thermodynamic Properties of CO2 Mixtures and Their Applications in Advanced Power Cycles with CO2 Capture Processes, Doctorial Thesis, KTH, 2008.
Experimental Data For Binary Mixtures of CO2
Background cont’d
Background cont’d – Why is this important?
*J. Race, M. Downie, P.M. Seevam (Newcastle University), UKCCSC, Annual Seminar, University of Newcastle, 17th September 2007
*CO2 Phase Diagram
The presence of impurities in CO2 mixtures can have a strong impact on the overall CCS chain, depending on the impurities present and their concentration.
7
CanmetENERGY’s Integrated Oxy-fuel and CO2 Capture and Compression Unit (CO2CCU)
0.3 MWth Oxy-fuel Vertical Combustor Research Facility (VCRF); operational since 1994.
Synthetic Flue
Gas System
*Reference: http://www.acpco2.com
CO2CCU is operating based on CanmetENERGY’s proprietary low- temperature auto-refrigeration physical separation process.
9
VV I
Operational Limits:
Supercritical fluid studies
High degree of thermal stability
Gas and liquid phase sampling
Extendable to other CO2 related areas; e.g. CO2 hydrates, material studies, etc.
Cold Box Thermal Stability
13
CO2 29.8 T [oC] -21.30
Species Exp. HYSYS Ar 3.04 4.08 O2 7.74 8.43 N2 16.38 17.07
CO2 66.89 70.4
P [bar] 14.8 T [oC] -44.9
Species Exp. HYSYS Ar 3.22 8.54 O2 9.27 12.39 N2 19.53 19.34
CO2 58.22 59.73
P [bar] 30.8 T [oC] -43.6
Species Exp. HYSYS Ar 5.14 13.27 O2 15.07 19.89 N2 31.14 31.76
CO2 34.34 35.08
P [bar] 50 T [oC] -41
Species Exp. HYSYS Ar 5.66 14.12 O2 15.66 21.83 N2 34.87 35.73
CO2 29.63 28.32
P [bar] 60 T [oC] -40
Species Exp. HYSYS Ar 5.66 14.15 O2 16.61 22.2 N2 36.82 36.81
CO2 26.76 26.84
P [bar] 67 T [oC] -40
Species Exp. HYSYS Ar 4.99 14.16 O2 14.78 22.47 N2 30.86 37.61
CO2 27.18 25.77
Species Gas No 1 Gas No 2 Ar 3.85 7.15 O2 7.93 10.34 N2 16.04 16.1
CO2 72.18 66.42
14
G2 – V2
G1 – V1
G2 – V3
G2 – V4
G2 – V5
Closing Remarks
Initial round of testing has identified some challenges with measurement of CO2 mixture parameters in the CO2 pressure cell.
The test results obtained are consistent with the expect behavior of CO2 mixtures and confirm the view that flue gas impurities can have a dramatic effect on estimating the properties of CO2 mixtures.
In spite of initial challenges, the preliminary results are encouraging: generally good agreement between CO2 and N2 data and HYSYS modeling results. However, Ar and O2 measurements were consistently lower than predicted values.
Future work will attempt to expand the experimental database for a wide range of CO2 mixtures and evaluate the suitability of various equations of state for these mixtures.
16 16
Acknowledgment: This work was supported by the PERD (Program of Energy Research and Development) and the Clean Energy Fund. The authors gratefully acknowledge the support provided by these programs.
Questions
Experimental Investigation and Model Validation on the Effects of Impurities on CO2 Separation using a Bench-scale High Pressure CO2 Test Cell
Outline
Motivation
Background
Background cont’d – Why is this important?
CanmetENERGY’s Integrated Oxy-fuel and CO2 Capture and Compression Unit (CO2CCU)
CO2 Capture and Compression Unit
CO2CCU Simplified Process Flow Diagram
CanmetENERGY’s High Pressure CO2 Bench-scale Test Facility
Cold Box Thermal Stability
Preliminary Test Results
Experimental Investigation and Model Validation on the Effects of Impurities on CO2 Separation using a Bench-scale High
Pressure CO2 Test Cell
Zero Emission Technologies (ZET) Group Clean Electric Power Generation
CanmetENERGY, Natural Resources Canada
Outline
Capture and Compression Unit (CO2CCU). CanmetENERGY’s CO2 Capture and Compression
Unit (CO2CCU). CanmetENERGY’s high pressure CO2 bench-scale
test facility Preliminary test results from the high pressure CO2
bench-scale test facility Concluding remarks.
3
/Bitumen/Syngas
Air-Combustion
Combustion
Oxy-Combustion
Transportation Fuels, Cement, Steel, etc.
CO2 Removal
Power & Heat
Pre-combustion Capture
Oxy-fuel Combustion
CO2 Removal
CO2 Removal
/Bitumen/Syngas
Air-Combustion
Combustion
Oxy-Combustion
Transportation Fuels, Cement, Steel, etc.
CO2 Removal
Power & Heat
Pre-combustion Capture
Oxy-fuel Combustion
CO2 Removal
CO2 Removal
5 - 15% CO2
*
*H. Li, Thermodynamic Properties of CO2 Mixtures and Their Applications in Advanced Power Cycles with CO2 Capture Processes, Doctorial Thesis, KTH, 2008.
An understanding of gas stream impurities underlies the compression, purification, transportation, and storage of CO2 and is key to effectively design, implement and operate CCS systems.
Motivation
4
Background
There is a great deal of information on pure CO2 and a reasonable degree of knowledge on CO2 mixtures of water, hydrocarbons, and H2S owing to interest from the natural gas processing industry.
By contrast there is relatively little information about CO2 mixtures containing O2, Ar, N2, and SO2, which are relevant to CCS processes.
Whatever data on CO2 mixtures that does exist in the open literature is outside the pressure and temperature ranges of interest for CCS systems.
Moreover, data for multi-gas CO2 mixtures is very scarce. EQS for CO2 mixtures of interest to CCS chain need to be revisited.
http://www.nasa.gov/vision/earth/technologies/harvestingmars.html
5
*
*H. Li, Thermodynamic Properties of CO2 Mixtures and Their Applications in Advanced Power Cycles with CO2 Capture Processes, Doctorial Thesis, KTH, 2008.
Experimental Data For Binary Mixtures of CO2
Background cont’d
Background cont’d – Why is this important?
*J. Race, M. Downie, P.M. Seevam (Newcastle University), UKCCSC, Annual Seminar, University of Newcastle, 17th September 2007
*CO2 Phase Diagram
The presence of impurities in CO2 mixtures can have a strong impact on the overall CCS chain, depending on the impurities present and their concentration.
7
CanmetENERGY’s Integrated Oxy-fuel and CO2 Capture and Compression Unit (CO2CCU)
0.3 MWth Oxy-fuel Vertical Combustor Research Facility (VCRF); operational since 1994.
Synthetic Flue
Gas System
*Reference: http://www.acpco2.com
CO2CCU is operating based on CanmetENERGY’s proprietary low- temperature auto-refrigeration physical separation process.
9
VV I
Operational Limits:
Supercritical fluid studies
High degree of thermal stability
Gas and liquid phase sampling
Extendable to other CO2 related areas; e.g. CO2 hydrates, material studies, etc.
Cold Box Thermal Stability
13
CO2 29.8 T [oC] -21.30
Species Exp. HYSYS Ar 3.04 4.08 O2 7.74 8.43 N2 16.38 17.07
CO2 66.89 70.4
P [bar] 14.8 T [oC] -44.9
Species Exp. HYSYS Ar 3.22 8.54 O2 9.27 12.39 N2 19.53 19.34
CO2 58.22 59.73
P [bar] 30.8 T [oC] -43.6
Species Exp. HYSYS Ar 5.14 13.27 O2 15.07 19.89 N2 31.14 31.76
CO2 34.34 35.08
P [bar] 50 T [oC] -41
Species Exp. HYSYS Ar 5.66 14.12 O2 15.66 21.83 N2 34.87 35.73
CO2 29.63 28.32
P [bar] 60 T [oC] -40
Species Exp. HYSYS Ar 5.66 14.15 O2 16.61 22.2 N2 36.82 36.81
CO2 26.76 26.84
P [bar] 67 T [oC] -40
Species Exp. HYSYS Ar 4.99 14.16 O2 14.78 22.47 N2 30.86 37.61
CO2 27.18 25.77
Species Gas No 1 Gas No 2 Ar 3.85 7.15 O2 7.93 10.34 N2 16.04 16.1
CO2 72.18 66.42
14
G2 – V2
G1 – V1
G2 – V3
G2 – V4
G2 – V5
Closing Remarks
Initial round of testing has identified some challenges with measurement of CO2 mixture parameters in the CO2 pressure cell.
The test results obtained are consistent with the expect behavior of CO2 mixtures and confirm the view that flue gas impurities can have a dramatic effect on estimating the properties of CO2 mixtures.
In spite of initial challenges, the preliminary results are encouraging: generally good agreement between CO2 and N2 data and HYSYS modeling results. However, Ar and O2 measurements were consistently lower than predicted values.
Future work will attempt to expand the experimental database for a wide range of CO2 mixtures and evaluate the suitability of various equations of state for these mixtures.
16 16
Acknowledgment: This work was supported by the PERD (Program of Energy Research and Development) and the Clean Energy Fund. The authors gratefully acknowledge the support provided by these programs.
Questions
Experimental Investigation and Model Validation on the Effects of Impurities on CO2 Separation using a Bench-scale High Pressure CO2 Test Cell
Outline
Motivation
Background
Background cont’d – Why is this important?
CanmetENERGY’s Integrated Oxy-fuel and CO2 Capture and Compression Unit (CO2CCU)
CO2 Capture and Compression Unit
CO2CCU Simplified Process Flow Diagram
CanmetENERGY’s High Pressure CO2 Bench-scale Test Facility
Cold Box Thermal Stability
Preliminary Test Results