1. CO 2 Capture by Aqueous Absorption/Stripping Research Review Meeting The University of Texas at Austin with contributions from The University of Regina, Canada NTNU, Norway January 10-11, 2008 Austin, TX Introduction by Gary Rochelle gtr@che.utexas.edu

7. Thursday Morning, 1/10, CPE 2.220 Solvent Management

8. Thursday Afternoon, 1/10 CPE 2.220 Thermodynamics and Solvent Development

9. Friday Morning, 1/11, CPE 2.220 Rates and Absorber Modeling

10. Friday Afternoon, 1/11 System Modeling Sequestration

11. Research Funding Luminant Carbon Management Program ($750k/yr) – Luminant ($500k/yr), Alstom ($75k/yr) IAP for CO 2 Capture by Aqueous Abs ($300k/yr) – Strategic Partner for Pilot: LSPower ($100k/yr) (pending) Other Sponsors in LCMP and IAP, $25k/yr each – Suppliers: B&W, Cansolv, IFP, MHI, Shell, URS, BP – Utilities: RWEnpower, E.ON, Southern – Other: AspenTech, Chevron, Huntsman, CSIRO, Siemens – Pending: Battelle Grants and contracts – DOE - $1,565k – finished 8/07 – Industrial (Seibert) – 3+ months of pilot plant Overhead on Industrial Contributions Faculty Salary

12. CO 2 Capture – ChE - UT Austin Thermodynamics: VLE – (Hilliard), Nguyen Rate/VLE Measurements: Packing Area – Tsai MEA/PZ, ROC16 – Dugas Solvent Management: Oxidative Degradation – Sexton Thermal Degradation – Davis Reclaiming – Xu ROC16 – Freeman MDEA/PZ – Closmann Modeling: Absorber – Plaza Stripper – Van Wagener MEA optimization/control – Ziaii

13. Funded Collaborations Capture Pilot Plant: Seibert –Third party testing (4 months) –Testing to support a field pilot (LSPower) –Packing Characterization Center Int Energy & Env Policy:Webber –Offpeak operation – Cohen Gulf Coast Carbon Center ($50k): Hovorka Geologic Storage JIP ($50k): Bryant Univ. of Regina ($?): CorrosionVeawab

14. Recent Publications Quarterly Progress Reports DOE Final Report New Manuscripts Absorber Intercooling – Plaza (not submitted) Dissertations K+/PZ pilot plant – Chen Thermodynamics – Hilliard

15. Activities at NTNU Department of Chemical Engineering and SINTEF Materials and Chemistry Absorbent systems (amines, amino acids, carbonates, precipitating systems) Experimental screening (rate and capacity) CO 2 equil at absorption & desorption conds(several apparatuses) VLE of unloaded systems(ebulliometer) Kinetics (string of discs contactor) N 2 O/CO 2 solubility(Henry’s law constant) Heat of absorption (differential in T, semi-differential in CO 2 loading) Density and viscosity of unloaded and loaded solutions Ecotoxisity and bio-degradability Degradation Corrosion (starting) Computational chemistry Absorbent system pre-selection criterion Evaluation of reaction mechanisms Determination of chemical equilibrium constants

16. Packing characterization Pressure drop and capacity Liquid mal-distribution Effective area and wetting, low liquid loads Tracer studies Simulation model development Equilibrium models Mass and heat transfer models Process simulator Pilot plant studies System operability and performance Detailed studies of absorber, desorber, & reboiler Energy requirements Model validation

17. Analytical methods Methodologies for quantitative and qualitative detection of amines and degradation products. Combination of high (LC-TOF, LC-Q-TOF) and low (GC-MS, LC-MS, LC-MS-MS, LC-IonTrap) resolution chromatographic methods Multivariate analysis(QSAR) for bio-degradation and ecotoxicity Membrane contactors Mass transfer measurements and modeling Effects of geometry, mixing Pilot studies

18. Norwegian: (RCN = Research Council of Norway) BIGCO2: Post- & pre-combustion, oxyfuel & storage (RCN & Ind) REACT: Reducing the environmental impact of acid gas control technologies (RCN and Ind) VOCC: Validation of CO 2 Capture, packing material studies (RCN and Ind) VNC: Validation of New Chemicals (RCN and Ind) CCERT: Fundamental studies, post- and pre-combustion, and systems analysis(RCN and Ind) NTNU Projects European CASTOR: CO 2 Capture & Storage, post-combustion & storage ULCOS: Reducing CO 2 emissions from steel-making, DYNAMIS: Pre-combustion CESAR: Post-combustion capture DECARBIT: Pre-combustion capture CAPRICE: Post-combustion pilot & model validation, collaboration with U. Regina

19. CO 2 Capture Research at University of Regina (under supervision of A. Veawab and A. Aroonwilas) Mass-transfer characteristics of single & blended alkanolamines Performance of high-efficiency gas-liquid contactors (structured packing and spray column) CO 2 absorption kinetics using wetted wall column Modeling and process simulation of absorber and stripper CFD-based model of absorber & regenerator design Energy model for CO 2 capture process Integration of CO 2 capture unit into power plant (Monte-Carlo simulation) Measurement of reboiler heat duty using a small-scale CO 2 stripping unit Development of energy-efficient process configuration for CO 2 capture Corrosion in CO 2 -amine system Development of low-toxic corrosion inhibitors Environmental impact of CO 2 capture technologies Foaming in CO 2 -amine system

20. Funding Agencies (under supervision of A. Veawab and A. Aroonwilas) Natural Sciences and Engineering Research Council of Canada (NSERC) Canada Foundation for Innovation (CFI)