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

115 results found

Bond T, Tse Q, Chambon CL, Fennell P, Fowler GD, Krueger BC, Templeton MRet al., 2018, The feasibility of char and bio-oil production from pyrolysis of pit latrine sludge, ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY, Vol: 4, Pages: 253-264, ISSN: 2053-1400

JOURNAL ARTICLE

Boot-Handford ME, Virmond E, Florin NH, Kandiyoti R, Fennell PSet al., 2018, Simple pyrolysis experiments for the preliminary assessment of biomass feedstocks and low-cost tar cracking catalysts for downdraft gasification applications, BIOMASS & BIOENERGY, Vol: 108, Pages: 398-414, ISSN: 0961-9534

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

Vuppaladadiyam AK, Yao JG, Florin N, George A, Wang X, Labeeuw L, Jiang Y, Davis RW, Abbas A, Ralph P, Fennell PS, Zhao Met al., 2018, Impact of Flue Gas Compounds on Microalgae and Mechanisms for Carbon Assimilation and Utilization, CHEMSUSCHEM, Vol: 11, Pages: 334-355, ISSN: 1864-5631

JOURNAL ARTICLE

Zhang Z, Yao JG, Boot-Handford ME, Fennell PSet al., 2018, Pressurised chemical-looping combustion of an iron-based oxygen carrier: Reduction kinetic measurements and modelling, Fuel Processing Technology, Vol: 171, Pages: 205-214, ISSN: 0378-3820

© 2017 Chemical-looping combustion (CLC) is a novel combustion techology offering the potential to provide uninterrupted and reliable heat and power production from fossil or bio-derived fuels with integrated, intrinsic CO 2 capture and minimal energy penalty. Operation of CLC at elevated pressures provides the potential for integration with a combined cycle, which makes the use of solid fuels significantly more feasible. To date, only a few experimental studies investigating CLC processes and oxygen carrier performance under pressurised conditions have been reported in the open literature. This article reports findings from investigations into the effect of pressure, temperature and CO concentration on the intrinsic reaction kinetics of an Al 2 O 3 -supported Fe-based oxygen carrier. Our study employed an innovative pressurised fluidised-bed reactor, designed for operation at temperatures up to 1273 K and pressures up to 20 bara, to simulate ex-situ gasification of solid fuels at elevated pressures. An intrinsic reaction model was developed and pseudo-intrinsic rate constants were derived. Differences in the activation energies and pre-exponential fact ors of the Al 2 O 3 -supported Fe 2 O 3 and a pure Fe 2 O 3 oxygen carriers were observed, indicating a change in reaction mechanism when Al 2 O 3 was present. Subsequently, an adapted random pore model was developed to describe the variation of reaction rate with solid conversion. The good agreement between the adapted random pore model and empirical measurements indicated that the change in mechanism was due to a significantly higher product layer diffusivity for the Al 2 O 3 -supported Fe 2 O 3 oxygen carrier compared with the pure Fe 2 O 3 material. When pressurised, the observed reaction order with respect to CO was slightly lower than 1. The model developed using atmospheric pressure measurements was successfully applied to predict reaction kinetics at elevated pressures up to 5 bara providing further vali

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 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

Hills TP, Sceats M, Rennie D, Fennell Pet al., 2017, LEILAC: Low Cost CO<inf>2</inf> Capture for the Cement and Lime Industries, Pages: 6166-6170, ISSN: 1876-6102

© 2017 The Authors. The LEILAC project will apply a revolutionary carbon capture technology to the cement and lime industries. It aims to enable the capture of unavoidable process CO 2 from limestone calcination for no energy cost and no extra capital cost (apart from compression). It is being developed by a consortium in a €21 M five-year Horizon 2020 project. A 240 t/d pilot will be built at HeidelbergCement's plant in Lixhe, Belgium, demonstrating that 95% of a plant's process CO 2 emissions could be captured (around 60% of a plant's total direct CO 2 emissions), and on-going R & D activities are reducing the uncertainties and risks involved.

CONFERENCE PAPER

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, Fennell P, Shah N, Petit C, Mac Dowell Net 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., 13th International Conference on Greenhouse Gas Control Technologies (GHGT), Publisher: ELSEVIER SCIENCE BV, Pages: 6297-6302, ISSN: 1876-6102

CONFERENCE PAPER

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, Mac Dowell N, 2017, Flexible operation strategies for coal- and gas-CCS power stations under the UK and USA markets, 13th International Conference on Greenhouse Gas Control Technologies (GHGT), Publisher: ELSEVIER SCIENCE BV, Pages: 6543-6551, ISSN: 1876-6102

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

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