Benchmark study and emissions at TCM UK-Canada-Norway meeting on CO 2 capture research th March 2015 Berit Fostås, Statoil ASA

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1 Benchmark study and emissions at TCM UK-Canada-Norway meeting on CO 2 capture research th March 2015 Berit Fostås, Statoil ASA

2 R&D on CO 2 Capture Technology in Statoil CO 2 Capture Technology improvement through testing and learning at TCM Supporting Oxy-combustion Once Through Steam Generation (OTSG) demonstration project at Cenovus Energy s Christina Lake oil sand operation. Test campaign planned to be finalized this spring. Contribute to development of some promising but still immature technologies by open innovation : CO 2 membranes at NTNU with Air Products Better solvents in MoSolv project 2

3 Statoil s main focus on CO 2 capture is TCM Why focus on post combustion? Be able to capture CO 2 from Natural Gas based energy systems CO 2 capture technology improvement through testing and learning at TCM: Established amine (MEA) baseline as a benchmark/reference and TCM DA is sharing the test results Cost reduction through operating experience and multiple incremental technology improvements Test new solvents and allow modifications of the plant to better fit improved solvents 3

4 TCM is the world s largest facility for testing and improving CO 2 capture. Knowledge gained will prepare the ground for CO 2 capture initiatives to combat climate change world wide.

5 Technologies tested at TCM From start-up August 2013 until March 2015: Aker Solutions tested two novel solvents (> 3000 hrs per solvent) Aker Solution and TCM Owners tested MEA and established a new MEA reference (2000 hrs) Alstom finalized testing of CAP (> 6000 hrs) Shell Cansolv test with advanced solvent is ongoing 5

6 MEA baseline testing Test Matrix 6

7 MEA Main results TCM has produced and published results for CO2 capture from gas turbine flue gas by 30 w% MEA solvent system Minimum Steam Reboiler Duty for aqueous 30 wt% MEA (> 85% CO2 capture rate, ) Without antifoam: 4.1 MJ/kg CO 2 With antifoam: 3.7 MJ/kg CO 2 Minimum Steam Reboiler Duty for aqueous 40 wt% MEA (> 85% CO2 capture rate) With antifoam likely still active, 3.4 MJ/kg CO 2 steam consumption was measured Impact on Steam Reboiler Duty : Increased absorber packing heights resulted in lower SRD Decreased flue gas supply temperature resulted in lower SRD Higher MEA concentration resulted in lower SRD and L/G ratio Independent verification work conducted by EPRI (Electric Power Research Institute) 7

8 Emission Most important Risk Factor Air: 0.3 ng/m3 Water: 4 ng/l 8

9 MEA baseline: typical emission performance Emissions from the TCM plant are followed up by use of: On-line measurements (FTIR, PTR-TOF-MS (UiO), other) Isokinetic sampling campaigns and off-line measurements TCM lab measurements Third party measurements (SINTEF, Ramböll, FORCE, etc.) MEA 0.02 ppmv NH3 10 ppmv Alkylamines ppmv Acetaldehyde 0.2 ppmv Formaldehyde 0.1 ppmv Total nitrosamines < mg/m 3 Total nitramines < mg/m 3 9

10 Conclusions 30 w% MEA baseline established at TCM: Flue gas: Sm 3 /h and about 3.5 vol% CO 2 90% capture rate and SRD of 4.1 GJ/t CO 2 (without anti-foam) Emissions effectively stopped by the two stage water wash section (6m packing): Very low emissions of MEA (ppb range) Emissions of nitrosamines and nitramines below detection limits (< 20 pptv) Emissions were within the limits set by the Norwegian environmental authorities Proves full-scale CO 2 capture operations technically and environmentally possible for treatment of gas-turbine flue gas Following process aspects not concluded; long term performance indices (corrosion, degradation, etc.), use of anti-foam solutions, use of lean vapor compressor, etc. Use of anti-foam solutions provided SRD down to about 3.7 GJ/t CO 2 Use of 40 wt% aq. MEA provided SRD down to about 3.4 GJ/t CO 2 10

11 Results presented at GHGT-12 and ADIPEC GHGT in Oct 2014: Results from MEA testing at the CO 2 Technology Centre Mongstad. Part I: Post-Combustion CO 2 capture testing methodology Results from MEA testing at the CO 2 Technology Centre Mongstad. Part II: Verification of baseline results Results of amine plant operations from 30 wt% and 40 wt% aqueous MEA testing at the CO 2 Technology Centre Mongstad Emission results of amine plant operations from MEA testing at the CO 2 Technology Centre Mongstad Results from testing of Aker Solutions advanced amine solvents at CO 2 Technology Centre Mongstad ADIPEC in Nov 2014: Scale-up and Transient Operation of CO2 Capture Plants at CO2 Technology Centre Mongstad 11

12 Presentation title Presenters name Presenters title Tel:

13 TCM emission permit TCM was granted an emission permit for the CO2 capture plant from the Norwegian government in For the first time health risk of nitrosamines and nitramines was addressed. Final permit approval and conditions: 13