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Thursday Morning, 1/10, CPE 2.220 Solvent Management

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. Thursday Morning, 1/10, CPE 2.220

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Thursday Morning, 1/10, CPE 2.220 Solvent Management

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  1. CO2 Capture byAqueous Absorption/StrippingResearch Review MeetingThe University of Texas at Austinwith contributions fromThe University of Regina, CanadaNTNU, NorwayJanuary 10-11, 2008Austin, TXIntroduction by Gary Rochellegtr@che.utexas.edu

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

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

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

  5. Friday Afternoon, 1/11System ModelingSequestration

  6. Research Funding • Luminant Carbon Management Program ($750k/yr) • Luminant ($500k/yr), Alstom ($75k/yr) • IAP for CO2 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

  7. CO2 Capture – ChE - UT Austin Thermodynamics: VLE – (Hilliard), Nguyen Rate/VLEMeasurements: Packing Area – Tsai MEA/PZ, ROC16 – Dugas Solvent Management: OxidativeDegradation – Sexton Thermal Degradation – Davis Reclaiming – Xu ROC16 – Freeman MDEA/PZ – Closmann Modeling: Absorber – Plaza Stripper – Van Wagener MEA optimization/control – Ziaii

  8. 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 ($50k): Bryant • Univ. of Regina ($?): Corrosion Veawab

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

  10. 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) • CO2 equil at absorption & desorption conds(several apparatuses) • VLE of unloaded systems(ebulliometer) • Kinetics (string of discs contactor) • N2O/CO2 solubility(Henry’s law constant) • Heat of absorption (differential in T, semi-differential in CO2 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

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

  12. 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

  13. NTNU Projects 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 CO2 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) European CASTOR: CO2 Capture & Storage, post-combustion & storage ULCOS: Reducing CO2 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

  14. CO2 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) • CO2 absorption kinetics using wetted wall column • Modeling and process simulation of absorber and stripper • CFD-based model of absorber & regenerator design • Energy model for CO2 capture process • Integration of CO2 capture unit into power plant (Monte-Carlo simulation) • Measurement of reboiler heat duty using a small-scale CO2 stripping unit • Development of energy-efficient process configuration for CO2 capture • Corrosion in CO2-amine system • Development of low-toxic corrosion inhibitors • Environmental impact of CO2 capture technologies • Foaming in CO2-amine system

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

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