Imperial College London

Paul Fennell

Faculty of EngineeringDepartment of Chemical Engineering

Professor of Clean Energy
 
 
 
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Contact

 

+44 (0)20 7594 6637p.fennell

 
 
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Location

 

228aBone BuildingSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

110 results found

Fan Y, Yao JG, Zhang Z, Sceats M, Zhuo Y, Li L, Maitland GC, 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

© 2017 The Authors Calcium looping is a high-temperature solid-looping process for CO 2 capture, exploiting cyclical carbonation of CaO. Previous work investigating the effects of steam on the carbonation reaction has produced conflicting results, with the majority of work conducted using thermogravimetric analyzers (TGA). Here, pressurized carbonation kinetics in the presence of steam in a 3 kW e pressurized spout-fluidized bed reactor, gives a rigorous insight into the effects of steam. Pseudo-intrinsic kinetics were determined using an effectiveness factor model along with activation energies and kinetic expressions. The mechanism in which steam promotes CO 2 adsorption on the surface of CaO was investigated using density functional theory (DFT). The molecular-scale changes on the CaO surface owing to the presence of steam compared to the base case of CO 2 adsorption on a ‘clean’ (without steam) surface were simulated with the Cambridge Serial Total Energy Package (CASTEP) software. The results suggest that steam promotes CO 2 adsorption via the formation of surface OH groups on the CaO surface.

JOURNAL ARTICLE

Bhave A, Taylor RHS, Fennell P, Livingston WR, Shah N, Mac Dowell N, Dennis J, Kraft M, Pourkashanian M, Insa M, Jones J, Burdett N, Bauen A, Beal C, Smallbone A, Akroyd Jet al., 2017, Screening and techno-economic assessment of biomass-based power generation with CCS technologies to meet 2050 CO2 targets, APPLIED ENERGY, Vol: 190, Pages: 481-489, ISSN: 0306-2619

JOURNAL ARTICLE

Bond T, Tse Q, Chambon C, Fennell P, Fowler GD, Krueger BC, Templeton MRet al., 2017, The feasibility of char and bio-oil production from pyrolysis of pit latrine sludge, Environmental Science: Water Research and Technology, Vol: in press

JOURNAL ARTICLE

Bond T, Tse Q, Chambon CL, Fennell P, Fowler GD, Templeton MRet al., 2017, Retracted Article: The feasibility of char and bio-oil production from pyrolysis of pit latrine sludge, Environ. Sci.: Water Res. Technol., ISSN: 2053-1400

JOURNAL ARTICLE

Brandl P, Soltani SM, Fennell PS, Mac Dowell Net al., 2017, Evaluation of cooling requirements of post-combustion CO2 capture applied to coal-fired power plants, CHEMICAL ENGINEERING RESEARCH & DESIGN, Vol: 122, Pages: 1-10, ISSN: 0263-8762

JOURNAL ARTICLE

Brandt-Talbot A, Gschwend FJV, Fennell PS, Lammens TM, Tan B, Weale J, Hallett JPet al., 2017, An economically viable ionic liquid for the fractionation of lignocellulosic biomass, GREEN CHEMISTRY, Vol: 19, Pages: 3078-3102, ISSN: 1463-9262

JOURNAL ARTICLE

Leeson D, Fennell P, Mac Dowell N, Shah Net al., 2017, Simultaneous design of separation sequences and whole process energy integration, CHEMICAL ENGINEERING RESEARCH & DESIGN, Vol: 125, Pages: 166-180, ISSN: 0263-8762

JOURNAL ARTICLE

Leeson D, Mac Dowell N, Shah N, Petit C, Fennell PSet al., 2017, A Techno-economic analysis and systematic review of carbon capture and storage (CCS) applied to the iron and steel, cement, oil refining and pulp and paper industries, as well as other high purity sources, INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL, Vol: 61, Pages: 71-84, ISSN: 1750-5836

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

Mechleri E, Brown S, Fennell PS, Mac Dowell Net al., 2017, CO2 capture and storage (CCS) cost reduction via infrastructure right-sizing, CHEMICAL ENGINEERING RESEARCH & DESIGN, Vol: 119, Pages: 130-139, ISSN: 0263-8762

JOURNAL ARTICLE

Mechleri E, Fennell PS, Dowell NM, 2017, Flexible Operation Strategies for Coal- and gas-CCS Power Stations under the UK and USA Markets, Pages: 6543-6551, ISSN: 1876-6102

© 2017 The Authors. The increased penetration of the intermittent renewable energy has increased the demand for flexible electricity supply. In this work, we evaluate four distinct strategies for flexible operation of CCS power plants: load following, solvent storage, exhaust gas by-pass and variable solvent regeneration (VSR) for coal- and gas-CCS power stations. With the aim to decoupling the power and capture plants in order to maximize profits, a multi-period dynamic optimisation problem was formulated and solved in the context of UK- and US-type markets. It was found that whilst the flexible operation strategies are strongly affected by the different markets, in all cases the variable solvent regeneration strategy was found to be the most profitable.

CONFERENCE PAPER

Mechleri E, Fennell PS, Mac Dowell N, 2017, Optimisation and evaluation of flexible operation strategies for coal- and gas-CCS power stations with a multi-period design approach, INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL, Vol: 59, Pages: 24-39, ISSN: 1750-5836

JOURNAL ARTICLE

Patzschke CF, Zhang J, Fennell PS, Trusler JPMet al., 2017, Density and Viscosity of Partially Carbonated Aqueous Solutions Containing a Tertiary Alkanolamine and Piperazine at Temperatures between 298.15 and 353.15 K, JOURNAL OF CHEMICAL AND ENGINEERING DATA, Vol: 62, Pages: 2075-2083, ISSN: 0021-9568

JOURNAL ARTICLE

Sikarwar VS, Zhao M, Fennell PS, Shah N, Anthony EJet al., 2017, Progress in biofuel production from gasification, PROGRESS IN ENERGY AND COMBUSTION SCIENCE, Vol: 61, Pages: 189-248, ISSN: 0360-1285

JOURNAL ARTICLE

Soltani SM, Fennell PS, Mac Dowell N, 2017, A parametric study of CO2 capture from gas-fired power plants using monoethanolamine (MEA), INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL, Vol: 63, Pages: 321-328, ISSN: 1750-5836

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

Zhao X, Zhou H, Sikarwar VS, Zhao M, Park A-HA, Fennell PS, Shen L, Fan L-Set al., 2017, Biomass-based chemical looping technologies: the good, the bad and the future, ENERGY & ENVIRONMENTAL SCIENCE, Vol: 10, Pages: 1885-1910, ISSN: 1754-5692

JOURNAL ARTICLE

Blamey J, Al-Jeboori MJ, Manovic V, Fennell PS, Anthony EJet al., 2016, CO2 capture by calcium aluminate pellets in a small fluidized bed, FUEL PROCESSING TECHNOLOGY, Vol: 142, Pages: 100-106, ISSN: 0378-3820

JOURNAL ARTICLE

Blarney J, Zhao M, Manovic V, Anthony EJ, Dugwell DR, Fennell PSet al., 2016, A shrinking core model for steam hydration of CaO-based sorbents cycled for CO2 capture, CHEMICAL ENGINEERING JOURNAL, Vol: 291, Pages: 298-305, ISSN: 1385-8947

JOURNAL ARTICLE

Boot-Handford ME, Florin N, Fennell PS, 2016, Investigations into the effects of volatile biomass tar on the performance of Fe-based CLC oxygen carrier materials, ENVIRONMENTAL RESEARCH LETTERS, Vol: 11, ISSN: 1748-9326

JOURNAL ARTICLE

Clough PT, Boot-Handford ME, Zhao M, Fennell PSet al., 2016, Degradation study of a novel polymorphic sorbent under realistic post-combustion conditions, FUEL, Vol: 186, Pages: 708-713, ISSN: 0016-2361

JOURNAL ARTICLE

Gonzalez B, Blamey J, Al-Jeboori MJ, Florin NH, Clough PT, Fennell PSet al., 2016, Additive effects of steam addition and HBr doping for CaO-based sorbents for CO2 capture, CHEMICAL ENGINEERING AND PROCESSING, Vol: 103, Pages: 21-26, ISSN: 0255-2701

JOURNAL ARTICLE

Hills T, Florin N, Fennell PS, 2016, Decarbonising the cement sector: A bottom-up model for optimising carbon capture application in the UK, JOURNAL OF CLEANER PRODUCTION, Vol: 139, Pages: 1351-1361, ISSN: 0959-6526

JOURNAL ARTICLE

Hills T, Leeson D, Florin N, Fennell Pet al., 2016, Carbon Capture in the Cement Industry: Technologies, Progress, and Retrofitting, ENVIRONMENTAL SCIENCE & TECHNOLOGY, Vol: 50, Pages: 368-377, ISSN: 0013-936X

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

Sikarwar VS, Zhao M, Clough P, Yao J, Zhong X, Memon MZ, Shah N, Anthony EJ, Fennell PSet al., 2016, An overview of advances in biomass gasification, ENERGY & ENVIRONMENTAL SCIENCE, Vol: 9, Pages: 2939-2977, ISSN: 1754-5692

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

Wilson G, Trusler M, Yao J, Lee J-SM, Graham R, Mac Dowell N, Cuellar-Franca R, Dowson G, Fennell P, Styring P, Gibbins J, Mazzotti M, Brandani S, Muller C, Hubble Ret al., 2016, End use and disposal of CO2 - storage or utilisation?: general discussion, FARADAY DISCUSSIONS, Vol: 192, Pages: 561-579, ISSN: 1359-6640

JOURNAL ARTICLE

Zhang Z, Hills TP, Scott SA, Fennell PSet al., 2016, Spouted bed reactor for kinetic measurements of reduction of Fe2O3 in a CO2/CO atmosphere Part I: Atmospheric pressure measurements and equipment commissioning, CHEMICAL ENGINEERING RESEARCH & DESIGN, Vol: 114, Pages: 307-320, ISSN: 0263-8762

JOURNAL ARTICLE

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