Imperial College London

ProfessorGeoffreyMaitland

Faculty of EngineeringDepartment of Chemical Engineering

Professor of Energy Engineering
 
 
 
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Contact

 

+44 (0)20 7594 1830g.maitland Website

 
 
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Assistant

 

Mrs Sarah Payne +44 (0)20 7594 5567

 
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Location

 

401ACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

225 results found

Bui M, Adjiman CS, Bardow A, Anthony EJ, Boston A, Brown S, Fennell PS, Fuss S, Galindo A, Hackett LA, Hallett JP, Herzog HJ, Jackson G, Kemper J, Krevor S, Maitland GC, Matuszewski M, Metcalfe IS, Petit C, Puxty G, Reimer J, Reiner DM, Rubin ES, Scott SA, Shah N, Smit B, Trusler JPM, Webley P, Wilcox J, Mac Dowell Net al., 2018, Carbon capture and storage (CCS): the way forward, ENERGY & ENVIRONMENTAL SCIENCE, Vol: 11, Pages: 1062-1176, ISSN: 1754-5692

JOURNAL ARTICLE

Chow YTF, Maitland GC, Stevar MSP, Trusler JPMet al., 2018, Interfacial Tension of (Brines + CO2): (0.864 NaCl + 0.136 KCl) at Temperatures between (298 and 448) K, Pressures between (2 and 50) MPa, and Total Molalities of (1 to 5) mol.kg(-1) (vol 57, pg 1078, 2012), JOURNAL OF CHEMICAL AND ENGINEERING DATA, Vol: 63, Pages: 2333-2334, ISSN: 0021-9568

JOURNAL ARTICLE

Chow YTF, Maitland GC, Trusler JPM, 2018, Interfacial tensions of (H<inf>2</inf>O + H<inf>2</inf>) and (H<inf>2</inf>O + CO<inf>2</inf>+ H<inf>2</inf>) systems at temperatures of (298–448) K and pressures up to 45 MPa, Fluid Phase Equilibria, Vol: 475, Pages: 37-44, ISSN: 0378-3812

© 2018 Elsevier B.V. We report new interfacial tension (IFT) measurements of the (H2O + CO2+ H2) and (H2O + H2) systems at pressures of (0.5 to 45) MPa, and temperatures of (298.15 to 448.15) K, measured by the pendant-drop method. The expanded uncertainties at 95% confidence are 0.05 K for temperature, 70 kPa for pressure, 0.017·γ for IFT in the both the binary (H2O + H2) system and the ternary (CO2+ H2+ H2O) system. Generally, the IFT was found to decrease with both increasing pressure and increasing temperature. However, for (H2O + H2) at the lowest two temperatures investigated, the isothermal IFT data were found to exhibit a maximum as a function of pressure at low pressures before declining with increasing pressure. An empirical correlation has been developed for the IFT of the (H2O + H2) system in the full range of conditions investigated, with an average absolute deviation of 0.16 mN m−1, and this is used to facilitate a comparison with literature values. Estimates of the IFT of the (H2O + CO2+ H2) ternary system, by an empirical combining rule based on the coexisting phase compositions and the interfacial tensions of the binary systems, were found to be unsuitable at low temperatures, with an average absolute deviation of 3.6 mN m−1over all the conditions investigated.

JOURNAL ARTICLE

Fan Y, Yao JG, Zhang Z, Sceats M, Zhuo Y, Li L, Maitland GG, Fennell PSet al., 2018, Pressurized calcium looping in the presence of steam in a spout-fluidized bed reactor with DFT analysis, FUEL PROCESSING TECHNOLOGY, Vol: 169, Pages: 24-41, ISSN: 0378-3820

JOURNAL ARTICLE

Li X, Peng C, Crawshaw JP, Maitland GC, Trusler JPMet al., 2018, The pH of CO2-saturated aqueous NaCl and NaHCO3 solutions at temperatures between 308 K and 373 K at pressures up to 15 MPa, FLUID PHASE EQUILIBRIA, Vol: 458, Pages: 253-263, ISSN: 0378-3812

JOURNAL ARTICLE

Al Ghafri SZS, Maitland GC, Trusler JPM, 2017, Phase Behavior of the System (Carbon Dioxide plus n-Heptane plus Methylbenzene): A Comparison between Experimental Data and SAFT-gamma-Mie Predictions, JOURNAL OF CHEMICAL AND ENGINEERING DATA, Vol: 62, Pages: 2826-2836, ISSN: 0021-9568

JOURNAL ARTICLE

Alderman NJ, Gavignet A, Guillot D, Maitland GCet al., 2017, High-temperature, high-pressure rheology of water-based muds.

This paper reports measurements of the rheology of a range of water based drilling muds at temperatures up to 130DEGREESC and pressures up to 1000 bar. The fluids were highly thixotropic, and decoupling of temperature/pressure effects from those due to time dependent structural changes was achieved by developing a sample preparation and handling procedure which ensured that all samples experienced identical shear histories prior to study in the rheometer. The observed behaviour of the fluids and its physical origins are discussed. A simple model allowing reliable extrapolation of surface measurements to downhole conditions for well circulated water based muds is presented.

JOURNAL ARTICLE

Mac Dowell N, Fennell PS, Shah N, Maitland GCet al., 2017, The role of CO2 capture and utilization in mitigating climate change, NATURE CLIMATE CHANGE, Vol: 7, Pages: 243-249, ISSN: 1758-678X

JOURNAL ARTICLE

Yao JG, Zhang Z, Sceats M, Maitland GC, Fennell PSet al., 2017, Two-Phase Fluidized Bed Model for Pressurized Carbonation Kinetics of Calcium Oxide, ENERGY & FUELS, Vol: 31, Pages: 11181-11193, ISSN: 0887-0624

JOURNAL ARTICLE

Cadogan SP, Mistry B, Wong Y, Maitland GC, Trusler JPMet al., 2016, Diffusion Coefficients of Carbon Dioxide in Eight Hydrocarbon Liquids at Temperatures between (298.15 and 423.15) K at Pressures up to 69 MPa, JOURNAL OF CHEMICAL AND ENGINEERING DATA, Vol: 61, Pages: 3922-3932, ISSN: 0021-9568

JOURNAL ARTICLE

Chow YTF, Eriksen DK, Galindo A, Haslam AJ, Jackson G, Maitland GC, Trusler JPMet al., 2016, Interfacial tensions of systems comprising water, carbon dioxide and diluent gases at high pressures: Experimental measurements and modelling with SAFT-VR Mie and square-gradient theory, FLUID PHASE EQUILIBRIA, Vol: 407, Pages: 159-176, ISSN: 0378-3812

JOURNAL ARTICLE

Chow YTF, Maitland GC, Trusler JPM, 2016, Interfacial tensions of the (CO2 + N-2 + H2O) system at temperatures of (298 to 448) K and pressures up to 40 MPa, JOURNAL OF CHEMICAL THERMODYNAMICS, Vol: 93, Pages: 392-403, ISSN: 0021-9614

JOURNAL ARTICLE

Lee J-SM, Rochelle G, Styring P, Fennell P, Wilson G, Trusler M, Clough P, Blamey J, Dunstan M, MacDowell N, Lyth S, Yao J, Hills T, Gazzani M, Brandl P, Anantharaman R, Brandani S, Stolaroff J, Mazzotti M, Maitland G, Muller C, Dowson G, Gibbins J, Ocone R, Campbell KS, Erans M, Zheng L, Sutter D, Armutlulu A, Smit Bet al., 2016, CCS - A technology for now: general discussion, FARADAY DISCUSSIONS, Vol: 192, Pages: 125-151, ISSN: 1359-6640

JOURNAL ARTICLE

Maitland G, 2016, Importance of CCS, CHEMISTRY & INDUSTRY, Vol: 80, Pages: 32-32, ISSN: 0009-3068

JOURNAL ARTICLE

Maitland GC, 2016, Carbon Capture and Storage: concluding remarks, FARADAY DISCUSSIONS, Vol: 192, Pages: 581-599, ISSN: 1359-6640

JOURNAL ARTICLE

Peng C, Anabaraonye BU, Crawshaw JP, Maitland GC, Trusler JPMet al., 2016, Kinetics of carbonate mineral dissolution in CO2-acidified brines at storage reservoir conditions, FARADAY DISCUSSIONS, Vol: 192, Pages: 545-560, ISSN: 1359-6640

JOURNAL ARTICLE

Rufai A, Crawshaw J, Maitland G, 2016, Capillary disconnect during evaporation in porous media: Visualization of transition from stage-1 to stage-2 evaporation regime

CONFERENCE PAPER

Schmidt KAG, Pagnutti D, Curran MD, Singh A, Trusler JPM, Maitland GC, McBride-Wright Met al., 2016, New Experimental Data and Reference Models for the Viscosity and Density of Squalane (vol 60, pg 137, 2015), JOURNAL OF CHEMICAL AND ENGINEERING DATA, Vol: 61, Pages: 698-698, ISSN: 0021-9568

JOURNAL ARTICLE

Smit B, Graham R, Styring P, Yao J, Clough P, Lee J-SM, MacDowell N, Lyth S, Rochelle G, Hills T, Wilson G, Petit C, Kemper J, Cuellar-Franca R, Dowson G, Gazzani M, Fennell P, Sutter D, Scholes C, Azapagic A, Bell R, Gibbins J, Mazzotti M, Maitland G, Brandani S, Ocone R, Mota-Martinez M, Dunstan M, Liang P, Anantharaman R, Joss L, Stolaroff Jet al., 2016, CCS - A technology for the future: general discussion, FARADAY DISCUSSIONS, Vol: 192, Pages: 303-335, ISSN: 1359-6640

JOURNAL ARTICLE

Smit B, Styring P, Wilson G, Rochelle G, Donat F, Yao J, Trusler M, Adjiman C, Lyth S, Lee J-SM, Hills T, Brandl P, Gazzani M, Cuellar-Franca R, Fennell P, Sutter D, Bui M, Scholes C, Dowson G, Gibbins J, Joss L, Maitland G, Brandani S, Garcia-Gutierrez P, Zhang Y, Muller C, Jackson G, Ocone R, Joos L, Bell R, Graham Ret al., 2016, Modelling - from molecules to megascale: general discussion, FARADAY DISCUSSIONS, Vol: 192, Pages: 493-509, ISSN: 1359-6640

JOURNAL ARTICLE

Al Ghafri SZS, Forte E, Galindo A, Maitland GC, Trusler JPMet al., 2015, Experimental and Modeling Study of the Phase Behavior of (Heptane plus Carbon Dioxide plus Water) Mixtures, JOURNAL OF CHEMICAL AND ENGINEERING DATA, Vol: 60, Pages: 3670-3681, ISSN: 0021-9568

JOURNAL ARTICLE

Bailey L, Lekkerkerker HNW, Maitland GC, 2015, Smectite clay - inorganic nanoparticle mixed suspensions: phase behaviour and rheology, SOFT MATTER, Vol: 11, Pages: 222-236, ISSN: 1744-683X

JOURNAL ARTICLE

Cadogan S, Maitland GC, Mistry B, Trusler JPM, Wong Tet al., 2015, Diffusion coefficients of carbon dioxide in liquid hydrocarbons at high pressures: Experiment and modeling, Pages: 69-75

CONFERENCE PAPER

Cadogan S, Maitland GC, Mistry B, Trusler JPM, Wong Tet al., 2015, Diffusion coefficients of carbon dioxide in liquid hydrocarbons at high pressures: Experiment and modeling, Pages: 144-150

In this work we have: • Obtained new experimental data for CO2 diffusion in normal alkanes from C6 to C16 and in squalane (C30H62) • Developed a universal correlation for the n-alkane systems in terms of temperature, solvent molar volume and carbon number • Squalane data suggests that the correlation should become nonlinear at high densities.

CONFERENCE PAPER

Cadogan SP, Hallett JP, Maidand GC, Trusler JPMet al., 2015, Diffusion Coefficients of Carbon Dioxide in Brines Measured Using C-13 Pulsed-Field Gradient Nuclear Magnetic Resonance, JOURNAL OF CHEMICAL AND ENGINEERING DATA, Vol: 60, Pages: 181-184, ISSN: 0021-9568

JOURNAL ARTICLE

Dechatiwongse P, Maitland G, Hellgardt K, 2015, Demonstration of a two-stage aerobic/anaerobic chemostat for the enhanced production of hydrogen and biomass from unicellular nitrogen-fixing cyanobacterium, ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS, Vol: 10, Pages: 189-201, ISSN: 2211-9264

JOURNAL ARTICLE

Hou S-X, Maitland GC, Trusler JPM, 2015, Phase equilibria of (CO2 + butylbenzene) and (CO2 + butylcyclohexane) at temperatures between (323.15 and 423.15) K and at pressures up to 21 MPa, FLUID PHASE EQUILIBRIA, Vol: 387, Pages: 111-116, ISSN: 0378-3812

JOURNAL ARTICLE

Maitland G, 2015, Refining in the reservoir, TCE The Chemical Engineer, Pages: 32-35, ISSN: 0302-0797

JOURNAL ARTICLE

McBride-Wright M, Maitland GC, Trusler JPM, 2015, Viscosity and Density of Aqueous Solutions of Carbon Dioxide at Temperatures from (274 to 449) K and at Pressures up to 100 MPa, JOURNAL OF CHEMICAL AND ENGINEERING DATA, Vol: 60, Pages: 171-180, ISSN: 0021-9568

JOURNAL ARTICLE

Peng C, Crawshaw JP, Maitland GC, Trusler JPMet al., 2015, Kinetics of calcite dissolution in CO2-saturated water at temperatures between (323 and 373) K and pressures up to 13.8 MPa, Chemical Geology, Vol: 403, Pages: 74-85, ISSN: 1872-6836

We report measurements of the calcite dissolution rate in CO2-saturated water at pressures ranging from (6.0 to 13.8) MPa and temperatures from (323 to 373) K. The rate of calcite dissolution in HCl(aq) at temperatures from (298 to 353) K was also measured at ambient pressure with pH between 2.0 and 3.3. A specially-designed batch reactor system, implementing a rotating disc technique, was used to obtain the dissolution rate at the solid/liquid interface of a single crystal, free of mass transfer effects. We used vertical scanning interferometry to examine the texture of the calcite surface produced by the experiment and the results suggested that at far-from-equilibrium conditions, the measured calcite dissolution rate was independent of the initial defect density due to the development of a dynamic dissolution pattern which became steady-state shortly after the onset of dissolution. The results of this study indicate that the calcite dissolution rate under surface-reaction-controlled conditions increases with the increase of temperature from (323 to 373) K and CO2 partial pressure from (6.0 to 13.8) MPa. Fitting the conventional first order transition state kinetic model to the observed rate suggested that, although sufficient to describe calcite dissolution in CO2-free HCl(aq), this model clearly underestimate the calcite dissolution rate in the (CO2 + H2O) system over the range of conditions studied. A kinetic model incorporating both pH and the activity of CO2(aq) has been developed to represent the dissolution rates found in this study. We report correlations for the corresponding reaction rate coefficients based on the Arrhenius equation and compare the apparent activation energies with values from the literature. The results of this study should facilitate more rigorous modelling of mineral dissolution in deep saline aquifers used for CO2 storage.

JOURNAL ARTICLE

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