All Outputs (58)

Microwave treatment of electric arc furnace dust with Tetrabromobisphenol A: Dielectric characterization and pyrolysis-leaching (2017)
Journal Article
Al-Harahsheh, M., Kingman, S., & Hamilton, I. S. (2017). Microwave treatment of electric arc furnace dust with Tetrabromobisphenol A: Dielectric characterization and pyrolysis-leaching. Journal of Analytical and Applied Pyrolysis, 128, https://doi.org/10.1016/j.jaap.2017.10.013

In the present work microwave treatment of electric arc furnace dust (EAFD) mixed with tetrabromobisphenol A (TBBPA) was investigated. A range of characterization techniques were used to understand the thermal behaviour of TBBPA-EAFD mixtures under m... Read More about Microwave treatment of electric arc furnace dust with Tetrabromobisphenol A: Dielectric characterization and pyrolysis-leaching.

Benefits of dry comminution of biomass pellets in a knife mill (2017)
Journal Article
Williams, O., Lester, E., Kingman, S., Giddings, D., Lormor, S., & Eastwick, C. (in press). Benefits of dry comminution of biomass pellets in a knife mill. Biosystems Engineering, 160, https://doi.org/10.1016/j.biosystemseng.2017.05.011

The potential benefits of dry comminution in a knife mill for a diverse range of biomass 6 pellets are explored. The impact of dry comminution on energy consumption, particle size and shape, 7 is examined as well as the link between milling and mecha... Read More about Benefits of dry comminution of biomass pellets in a knife mill.

Towards large scale microwave treatment of ores: Part 2 - Metallurgical testing (2017)
Journal Article
Batchelor, A., Buttress, A., Jones, D., Katrib, J., Way, D., Chenje, T., …Kingman, S. (2017). Towards large scale microwave treatment of ores: Part 2 - Metallurgical testing. Minerals Engineering, 111, 5-24. https://doi.org/10.1016/j.mineng.2017.05.003

© 2017 A pilot scale microwave treatment system capable of treating 10–150t/h of material at 10–200kW was designed, constructed and commissioned in order to understand the engineering challenges of microwave-induced fracture of ores at scale and gene... Read More about Towards large scale microwave treatment of ores: Part 2 - Metallurgical testing.

Microwave fluidized bed for biomass pyrolysis. Part II: Effect of process parameters (2017)
Journal Article
Adam, M., Beneroso, D., Katrib, J., Kingman, S., & Robinson, J. P. (in press). Microwave fluidized bed for biomass pyrolysis. Part II: Effect of process parameters. Biofuels, Bioproducts and Biorefining, https://doi.org/10.1002/bbb.1781

The microwave fluidized bed process developed in Part I (DOI: 10.1002/bbb.1780), in which the heating heterogeneity issues are overcome, has been applied to the pyrolysis of biomass. The degree of pyrolysis was established by studying the behavior of... Read More about Microwave fluidized bed for biomass pyrolysis. Part II: Effect of process parameters.

Microwave fluidized bed for biomass pyrolysis. Part I: Process design (2017)
Journal Article
Adam, M., Beneroso, D., Katrib, J., Kingman, S., & Robinson, J. P. (in press). Microwave fluidized bed for biomass pyrolysis. Part I: Process design. Biofuels, Bioproducts and Biorefining, https://doi.org/10.1002/bbb.1780

The production of bio-oils from microwave pyrolysis has received increasing attention from bioenergy researchers, but no studies reported to date have proposed reliable solutions to avoid thermal runaway. The motivation of this paper is to develop an... Read More about Microwave fluidized bed for biomass pyrolysis. Part I: Process design.

Towards large scale microwave treatment of ores: Part 1 – Basis of design, construction and commissioning (2017)
Journal Article
Buttress, A., Katrib, J., Batchelor, A., Jones, D., Craig, D., Royal, T., …Kingman, S. (2017). Towards large scale microwave treatment of ores: Part 1 – Basis of design, construction and commissioning. Minerals Engineering, 109, https://doi.org/10.1016/j.mineng.2017.03.006

Despite over thirty years of work, microwave pre-treatment processes for beneficiation of ores have not progressed much further than laboratory testing. In this paper we present a scaleable pilot-scale system for the microwave treatment of ores capab... Read More about Towards large scale microwave treatment of ores: Part 1 – Basis of design, construction and commissioning.

Metal-organic frameworks in seconds via selective microwave heating (2017)
Journal Article
Laybourn, A., Katrib, J., Ferrari-John, R. S., Morris, C. G., Yang, S., Udoudo, O., …Schröder, M. (2017). Metal-organic frameworks in seconds via selective microwave heating. Journal of Materials Chemistry A, 5(16), 7333-7338. https://doi.org/10.1039/C7TA01493G

© The Royal Society of Chemistry. Synthesis of metal-organic framework (MOF) materials via microwave heating often involves shorter reaction times and offers enhanced control of particle size compared to conventional heating. However, there is little... Read More about Metal-organic frameworks in seconds via selective microwave heating.

Overcoming the caking phenomenon in olive mill wastes (2017)
Journal Article
Williams, O., Eastwick, C., Kingman, S., Giddings, D., Lormor, S., & Lester, E. (2017). Overcoming the caking phenomenon in olive mill wastes. Industrial Crops and Products, 101, https://doi.org/10.1016/j.indcrop.2017.02.036

The use of olive mill wastes (orujillo) within coal fired power stations in the UK has led to unexpected difficulties with material caking within the fuel handling plant. This study replicated orujillo caking on a laboratory scale using a planetary b... Read More about Overcoming the caking phenomenon in olive mill wastes.

New insights into microwave pyrolysis of biomass: preparation of carbon-based products from pecan nutshells and their application in wastewater treatment (2017)
Journal Article
Duran Jimenez, G., Monti, T., Titman, J. J., Hernandez-Montoya, V., Kingman, S., & Binner, E. (2017). New insights into microwave pyrolysis of biomass: preparation of carbon-based products from pecan nutshells and their application in wastewater treatment. Journal of Analytical and Applied Pyrolysis, 124, https://doi.org/10.1016/j.jaap.2017.02.013

Microwave pyrolysis of pecan nutshell (Carya illinoinensis) biomass was used to produce carbon-based solid products with potential application in contaminated water treatment. A range of analytical techniques were applied to characterize the inter... Read More about New insights into microwave pyrolysis of biomass: preparation of carbon-based products from pecan nutshells and their application in wastewater treatment.

Statistical description of inhomogeneous samples by scanning microwave microscopy (2017)
Journal Article
Monti, T., Udoudo, O., Sperin, K. A., Dodds, C., Kingman, S., & Jackson, T. J. (2017). Statistical description of inhomogeneous samples by scanning microwave microscopy. IEEE Transactions on Microwave Theory and Techniques, 65(6), https://doi.org/10.1109/TMTT.2016.2642940

A quantitative analysis of the dielectric properties of a multiphase sample using a scanning microwave microscope (SMM) is proposed. The method is demonstrated using inhomogeneous samples composed of a resin containing micrometric inclusions of a kno... Read More about Statistical description of inhomogeneous samples by scanning microwave microscopy.

Electromagnetic heating for industrial kilning of malt: a feasibility study (2016)
Journal Article
Ferrari-John, R., Katrib, J., Zerva, E., Davies, N., Cook, D. J., Dodds, C., & Kingman, S. (in press). Electromagnetic heating for industrial kilning of malt: a feasibility study. Food and Bioprocess Technology, https://doi.org/10.1007/s11947-016-1849-0

Industrial malting operations use ~800kWh/t of energy to produce the heat required to kiln malt. Electromagnetic heating technologies are suggested as a way to potentially improve the energy efficiency of the kilning processing. In this work, the pot... Read More about Electromagnetic heating for industrial kilning of malt: a feasibility study.

Influence of mill type on densified biomass comminution (2016)
Journal Article
Williams, O., Newbolt, G., Eastwick, C., Kingman, S. W., Giddings, D., Lormor, S., & Lester, E. (2016). Influence of mill type on densified biomass comminution. Applied Energy, 182, 219-231. https://doi.org/10.1016/j.apenergy.2016.08.111

The impact of different mill fracture mechanisms were examined for a wide range of densified biomass pellets to provide a comprehensive analysis of biomass milling behaviour for pulverised fuel combustion. The milling behaviour of 7 woody, herbaceous... Read More about Influence of mill type on densified biomass comminution.

Understanding selectivity in radio frequency and microwave sorting of porphyry copper ores (2016)
Journal Article
Ferrari-John, R., Batchelor, A., Katrib, J., Dodds, C., & Kingman, S. (in press). Understanding selectivity in radio frequency and microwave sorting of porphyry copper ores. International Journal of Mineral Processing, 155, https://doi.org/10.1016/j.minpro.2016.08.011

Continuous high-throughput microwave treatment followed by infrared thermal imaging (MW-IR) has previously been shown to provide attractive separations for a number of porphyry copper ores, leading to rejection of a large proportion of barren fragmen... Read More about Understanding selectivity in radio frequency and microwave sorting of porphyry copper ores.

Pilot scale microwave sorting of porphyry copper ores: Part 1 – Laboratory investigations (2016)
Journal Article
Batchelor, A., Ferrari-John, R., Katrib, J., Udoudo, O., Jones, D., Dodds, C., & Kingman, S. (2016). Pilot scale microwave sorting of porphyry copper ores: Part 1 – Laboratory investigations. Minerals Engineering, 98, 303-327. https://doi.org/10.1016/j.mineng.2016.07.007

Microwave treatment followed by infrared thermal imaging (MW–IRT) has been proposed as a potential excitation-discrimination technique to facilitate sorting of porphyry copper ores. A continuous, high throughput (up to 100t/h), belt–based microwave c... Read More about Pilot scale microwave sorting of porphyry copper ores: Part 1 – Laboratory investigations.

Pilot scale microwave sorting of porphyry copper ores: Part 2 – Pilot plant trials (2016)
Journal Article
Batchelor, A., Ferrari-John, R., Dodds, C., & Kingman, S. (2016). Pilot scale microwave sorting of porphyry copper ores: Part 2 – Pilot plant trials. Minerals Engineering, 98, 328-338. https://doi.org/10.1016/j.mineng.2016.07.009

An experimental pilot plant was constructed, commissioned and operated at a major porphyry copper mine to understand the challenges of microwave infrared thermal (MW-IRT) sorting at scale and to compare batch laboratory performance with pilot-scale c... Read More about Pilot scale microwave sorting of porphyry copper ores: Part 2 – Pilot plant trials.

A tool for predicting heating uniformity in industrial radio frequency processing (2016)
Journal Article
Ferrari-John, R., Katrib, J., Palade, P., Batchelor, A., Dodds, C., & Kingman, S. (in press). A tool for predicting heating uniformity in industrial radio frequency processing. Food and Bioprocess Technology, https://doi.org/10.1007/s11947-016-1762-6

Radio frequency energy is utilised for heating in a wide range of applications, particularly in the food industry. A major challenge of RF processing is non-uniform heating in loads of variable and angular geometry, leading to reduced quality and pro... Read More about A tool for predicting heating uniformity in industrial radio frequency processing.

Increasing the grind size for effective liberation and flotation of a porphyry copper ore by microwave treatment (2016)
Journal Article
Batchelor, A., Jones, D., Plint, S., & Kingman, S. (2016). Increasing the grind size for effective liberation and flotation of a porphyry copper ore by microwave treatment. Minerals Engineering, 94, https://doi.org/10.1016/j.mineng.2016.05.011

In this paper, mineralogy, grain size, dissemination, textural consistency and mineral associations were determined for a commercially exploited porphyry copper ore using a Mineral Liberation Analyser (MLA). The ore was subjected to high power densit... Read More about Increasing the grind size for effective liberation and flotation of a porphyry copper ore by microwave treatment.

High-resolution dielectric characterization of minerals: a step towards understanding the basic interactions between microwaves and rocks (2016)
Journal Article
Monti, T., Tselev, A., Ofonime, U., Ivanov, I. N., Dodds, C., & Kingman, S. (2016). High-resolution dielectric characterization of minerals: a step towards understanding the basic interactions between microwaves and rocks. International Journal of Mineral Processing, 151, https://doi.org/10.1016/j.minpro.2016.04.003

Microwave energy was demonstrated to be potentially beneficial for reducing the cost of several steps of the mining process. Significant literature was developed about this topic but few studies are focused on understanding the interaction between mi... Read More about High-resolution dielectric characterization of minerals: a step towards understanding the basic interactions between microwaves and rocks.

Characterisation of potato crisp effective porosity using micro-CT (2016)
Journal Article
Renshaw, R. C., Robinson, J. P., Dimitrakis, G., Bows, J. R., & Kingman, S. W. (2016). Characterisation of potato crisp effective porosity using micro-CT. Journal of the Science of Food and Agriculture, 96(13), 4440-4448. https://doi.org/10.1002/jsfa.7655

Background The effective porosity is an important quantitative parameter for food products that has a significant effect on taste and quality. It is challenging to quantify the apparent porosity of fried potato crisps as they have a thin irregular... Read More about Characterisation of potato crisp effective porosity using micro-CT.

Understanding the electromagnetic interaction of metal organic framework reactants in aqueous solution at microwave frequencies (2016)
Journal Article
Laybourn, A., Katrib, J., Palade, P. A., Easun, T. L., Champness, N. R., Schröder, M., & Kingman, S. W. (2016). Understanding the electromagnetic interaction of metal organic framework reactants in aqueous solution at microwave frequencies. Physical Chemistry Chemical Physics, 18(7), https://doi.org/10.1039/C5CP05426E

Preparation of metal organic frameworks (MOFs) via microwave heating is becoming increasingly popular due to reduced reaction times and enhanced control of MOF particle size. However, there is little understanding about the detailed interaction of th... Read More about Understanding the electromagnetic interaction of metal organic framework reactants in aqueous solution at microwave frequencies.