All Outputs (23)

Chlorine Fixing Ability of Electric Arc Furnace Dust During the Thermal Degradation of Polyvinyl Chloride under Oxidative Conditions (2023)
Journal Article
Al-Harahsheh, M., Altarawneh, S., Al-Omari, M., Altarawneh, M., Kingman, S., & Dodds, C. (2023). Chlorine Fixing Ability of Electric Arc Furnace Dust During the Thermal Degradation of Polyvinyl Chloride under Oxidative Conditions. Jordanian Journal of Engineering and Chemical Industries, 6(3), 39-46. https://doi.org/10.48103/jjeci672023

Electric arc furnace dust (EAFD) and polyvinyl chloride (PVC) are two hazardous wastes that are accumulated world-wide at an alarming rate. Utilising these two wastes simultaneously towards a sustainable recycling loop can greatly mitigate their envi... Read More about Chlorine Fixing Ability of Electric Arc Furnace Dust During the Thermal Degradation of Polyvinyl Chloride under Oxidative Conditions.

A thermo-kinetic investigation on the thermal degradation of polyvinyl chloride in the presence of magnetite and hematite (2022)
Journal Article
Altarawneh, S., Al-Harahsheh, M., Buttress, A., Dodds, C., & Kingman, S. (2022). A thermo-kinetic investigation on the thermal degradation of polyvinyl chloride in the presence of magnetite and hematite. Thermochimica Acta, 718, Article 179390. https://doi.org/10.1016/j.tca.2022.179390

Electric arc furnace dust (EAFD) which is accumulated in large amounts world-wide contains hematite (Fe2O3) and significant quantities of magnetite (Fe3O4). Waste polyvinyl chloride (PVC) also poses a great environmental threat aside to accumulated E... Read More about A thermo-kinetic investigation on the thermal degradation of polyvinyl chloride in the presence of magnetite and hematite.

Thermodynamic, pyrolytic, and kinetic investigation on the thermal decomposition of polyvinyl chloride in the presence of franklinite (2022)
Journal Article
Altarawneh, S., Al-Harahsheh, M., Dodds, C., Buttress, A., & Kingman, S. (2022). Thermodynamic, pyrolytic, and kinetic investigation on the thermal decomposition of polyvinyl chloride in the presence of franklinite. Process Safety and Environmental Protection, 168, 558-569. https://doi.org/10.1016/j.psep.2022.10.028

Thermal co-treatment of Electric Arc Furnace Dust (EAFD) and polyvinyl chloride (PVC) may provide a viable route for reprocessing these hazardous materials within the circular economy. To develop and optimise a commercial treatment process, the compl... Read More about Thermodynamic, pyrolytic, and kinetic investigation on the thermal decomposition of polyvinyl chloride in the presence of franklinite.

S-band elliptical–cylindrical cavity resonator for material processing (2022)
Journal Article
Rodriguez, J., Ampuero, J., Valderrama, W., Buttress, A., Dodds, C., Kingman, S., & Carrasco, H. (2022). S-band elliptical–cylindrical cavity resonator for material processing. Microwave and Optical Technology Letters, 64(12), 2160-2164. https://doi.org/10.1002/mop.33431

The development of an elliptical–cylindrical cavity for microwave thermal processing of materials at high electric field strengths is reported. The design methodology based on numerical modeling is validated by experimental measurements. The system c... Read More about S-band elliptical–cylindrical cavity resonator for material processing.

Simultaneous conventional and microwave heating for the synthesis of adsorbents for CO2 capture: Comparative study to pristine technologies (2022)
Journal Article
Durán-Jiménez, G., Rodriguez, J., Kostas, E. T., Stevens, L. A., Lozada-Rodríguez, L., Binner, E., & Dodds, C. (2022). Simultaneous conventional and microwave heating for the synthesis of adsorbents for CO2 capture: Comparative study to pristine technologies. Chemical Engineering Journal, 438, Article 135549. https://doi.org/10.1016/j.cej.2022.135549

Microwave has become an attractive technology in the valorisation of renewable biomass and in the mitigation of challenges of climate change. In this work, the synergic effects of coupling microwave and mild conventional heating conditions has been i... Read More about Simultaneous conventional and microwave heating for the synthesis of adsorbents for CO2 capture: Comparative study to pristine technologies.

Thermal degradation kinetics of polyvinyl chloride in presence of zinc oxide (2021)
Journal Article
Altarawneh, S., Al-Harahsheh, M., Dodds, C., Buttress, A., & Kingman, S. (2022). Thermal degradation kinetics of polyvinyl chloride in presence of zinc oxide. Thermochimica Acta, 707, Article 179105. https://doi.org/10.1016/j.tca.2021.179105

This work investigates the degradation kinetics and the pyrolysis behavior of Poly (vinyl chloride) (PVC) and its mixture with ZnO using thermogravimetric analysis under an inert atmosphere. The investigation was carried out due to the increased inte... Read More about Thermal degradation kinetics of polyvinyl chloride in presence of zinc oxide.

Leaching behavior of zinc and lead from electric arc furnace dust – Poly(vinyl) chloride residues after oxidative thermal treatment (2021)
Journal Article
Al-Harahsheh, M., Altarawneh, S., Al-Omari, M., Altarawneh, M., Kingman, S., & Dodds, C. (2021). Leaching behavior of zinc and lead from electric arc furnace dust – Poly(vinyl) chloride residues after oxidative thermal treatment. Journal of Cleaner Production, 328, Article 129622. https://doi.org/10.1016/j.jclepro.2021.129622

Oxidative thermal treatment of electric arc furnace dust (EAFD) mixed with poly(vinyl) chloride (PVC) was carried out to study the impact of oxidizing environment on the extraction of valuable metals. The effect of oxygen partial pressure, temperatur... Read More about Leaching behavior of zinc and lead from electric arc furnace dust – Poly(vinyl) chloride residues after oxidative thermal treatment.

Microwave selective heating of electric arc furnace dust constituents toward sustainable recycling: Contribution of electric and magnetic fields (2021)
Journal Article
Altarawneh, S., Al-Harahsheh, M., Buttress, A., Dodds, C., Rodriguez, J., & Kingman, S. (2021). Microwave selective heating of electric arc furnace dust constituents toward sustainable recycling: Contribution of electric and magnetic fields. Journal of Industrial and Engineering Chemistry, 104, 521-528. https://doi.org/10.1016/j.jiec.2021.09.001

Microwave heating of waste electric arc furnace dust (EAFD) for the purpose of its remediation has been studied extensively. However, these studies considered EAFD as a bulk material without addressing either the relative response of its individual c... Read More about Microwave selective heating of electric arc furnace dust constituents toward sustainable recycling: Contribution of electric and magnetic fields.

Microwave digestion of gibbsite and bauxite in sodium hydroxide (2020)
Journal Article
Dillinger, B., Batchelor, A., Katrib, J., Dodds, C., Suchicital, C., Kingman, S., & Clark, D. (2020). Microwave digestion of gibbsite and bauxite in sodium hydroxide. Hydrometallurgy, 192, Article 105257. https://doi.org/10.1016/j.hydromet.2020.105257

It was hypothesized that bauxite digestion may be improved by using microwave heating as it has been shown in literature that some material processes have improved efficiency. To test this hypothesis, a set of digestion experiments were conducted usi... Read More about Microwave digestion of gibbsite and bauxite in sodium hydroxide.

Formation of Metallurgical Coke within Minutes through Coal Densification and Microwave Energy (2019)
Journal Article
Williams, O., Ure, A., Stevens, L., Binner, E., Dodds, C., Kingman, S., …Lester, E. (2019). Formation of Metallurgical Coke within Minutes through Coal Densification and Microwave Energy. Energy and Fuels, 33(7), 6817-6828. https://doi.org/10.1021/acs.energyfuels.9b00511

This paper shows how feedstock densification gives rise to a step change in the time required to create a metallurgical grade coke using microwave energy. Five densified coking and non-coking coals were heated in a multi-mode microwave 2450 MHz cavit... Read More about Formation of Metallurgical Coke within Minutes through Coal Densification and Microwave Energy.

Production of high purity silica by microfluidic-inclusion fracture using microwave pre-treatment (2018)
Journal Article
Buttress, A., Rodriguez, J., Ure, A., Ferrari, R., Dodds, C., & Kingman, S. (2019). Production of high purity silica by microfluidic-inclusion fracture using microwave pre-treatment. Minerals Engineering, 131, 407-419. https://doi.org/10.1016/j.mineng.2018.11.025

© 2018 Demand for high purity silica used in component manufacture is set to outstrip current supply in the near future. As such, alternative processing routes to feed-stock materials suitable for use in lighting and solar cell fabrication are requir... Read More about Production of high purity silica by microfluidic-inclusion fracture using microwave pre-treatment.

Realising the environmental benefits of metal–organic frameworks: recent advances in microwave synthesis (2018)
Journal Article
Thomas-Hillman, I., Laybourn, A., Dodds, C., & Kingman, S. W. (in press). Realising the environmental benefits of metal–organic frameworks: recent advances in microwave synthesis. Journal of Materials Chemistry A, https://doi.org/10.1039/c8ta02919a

Metal–organic frameworks (MOFs) are a broad class of porous crystalline materials that show great potential for a wide-range of applications in areas such as energy and environmental sustainability. MOFscan show significant advantages in gas selectiv... Read More about Realising the environmental benefits of metal–organic frameworks: recent advances in microwave synthesis.

Calibrated X-ray micro-tomography for mineral ore quantification (2017)
Journal Article
Reyes, F., Lin, Q., Udoudo, O., Dodds, C., Lee, P., & Neethling, S. (2017). Calibrated X-ray micro-tomography for mineral ore quantification. Minerals Engineering, 110, https://doi.org/10.1016/j.mineng.2017.04.015

Scanning Electron Microscopy (SEM) based assessments are the most widely used and trusted imaging technique for mineral ore quantification. X-ray micro tomography (XMT) is a more recent addition to the mineralogy toolbox, but with the potential to ex... Read More about Calibrated X-ray micro-tomography for mineral ore quantification.

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.

New insights into the role of selective and volumetric heating during microwave extraction: investigation of the extraction of polyphenolic compounds from sea buckthorn leaves using microwave-assisted extraction and conventional solvent extraction (2017)
Journal Article
Galan, A., Calinescu, I., Trifan, A., Winkworth-Smith, C., Calvo-Carrascal, M., Dodds, C., & Binner, E. (2017). New insights into the role of selective and volumetric heating during microwave extraction: investigation of the extraction of polyphenolic compounds from sea buckthorn leaves using microwave-assisted extraction and conventional solvent extraction. Chemical Engineering and Processing: Process Intensification, 116, 29-39. https://doi.org/10.1016/j.cep.2017.03.006

We report a direct comparison of microwave heating and conventional heating in solvent extraction by using exactly the same reaction conditions (including heating rate) in the extraction of polyphenols from dried sea buckthorn leaves. We have for the... Read More about New insights into the role of selective and volumetric heating during microwave extraction: investigation of the extraction of polyphenolic compounds from sea buckthorn leaves using microwave-assisted extraction and conventional solvent extraction.

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.

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.

Understanding the performance of a pilot vermiculite exfoliation system through process mineralogy (2015)
Journal Article
Udoudo, O., Folorunso, O., Dodds, C., Kingman, S., & Ure, A. (2015). Understanding the performance of a pilot vermiculite exfoliation system through process mineralogy. Minerals Engineering, 82, 84-91. doi:10.1016/j.mineng.2015.03.023

This paper reports on the application of process mineralogy to understand the experimental performance of a microwave based system for the exfoliation of vermiculite type minerals. When montmorillonite type clay structures are exposed to high intensi... Read More about Understanding the performance of a pilot vermiculite exfoliation system through process mineralogy.

Understanding the scabbling of concrete using microwave energy (2015)
Journal Article
Buttress, A., Jones, D., Dodds, C., Dimitrakis, G., Dawson, A., & Kingman, S. (in press). Understanding the scabbling of concrete using microwave energy. Cement and Concrete Research, 75, https://doi.org/10.1016/j.cemconres.2015.04.009

This paper reports on the use of microwave energy to scabble concrete. While the technique is not new, little information exists relating to the controllability of the process, the effect of different types of concrete and the performance and durabil... Read More about Understanding the scabbling of concrete using microwave energy.