All Outputs (60)

Thermal degradation of polyvinyl chloride in the presence of lead oxide: A kinetic and mechanistic investigation (2024)
Journal Article

The elimination of toxic heavy metals from metallurgical wastes before its recycling to steel furnaces is essential. Lead oxide (PbO) is a major toxic heavy metal present in electric arc furnace dust (EAFD). The co-recycling of EAFD with Polyvinyl ch... Read More about Thermal degradation of polyvinyl chloride in the presence of lead oxide: A kinetic and mechanistic investigation.

Solving the microwave heating uniformity conundrum for scalable high-temperature processes via a toroidal fluidised-bed reactor (2024)
Journal Article

Challenges exist to implementing high-temperature microwave processes with changing dielectric properties that achieve uniform processing. This paper presents a new high-temperature hybrid microwave processing system which overcomes these challenges... Read More about Solving the microwave heating uniformity conundrum for scalable high-temperature processes via a toroidal fluidised-bed reactor.

Chlorine Fixing Ability of Electric Arc Furnace Dust During the Thermal Degradation of Polyvinyl Chloride under Oxidative Conditions (2023)
Journal Article

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

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

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

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.

Thermal degradation kinetics of polyvinyl chloride in presence of zinc oxide (2021)
Journal Article

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

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

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

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.

Developing a sustainable route to environmentally relevant metal-organic frameworks: ultra-rapid synthesis of MFM-300(Al) using microwave heating (2019)
Journal Article

NO2, SO2 and CO2 are major air pollutants causing significant environmental and health problems. Metal-organic frameworks (MOFs), in particular [Al2(OH)2(C16O8H6)](H2O)6 (trivial names: NOTT-300/MFM-300(Al)), have shown great promise for capturing th... Read More about Developing a sustainable route to environmentally relevant metal-organic frameworks: ultra-rapid synthesis of MFM-300(Al) using microwave heating.

Methodology for the synthesis of methacrylate monomers using designed single mode microwave applicators (2019)
Journal Article

© 2019 The Royal Society of Chemistry. A novel single-well prototype high throughput microwave reactor geometry has been produced and shown to be capable of synthesizing an array of non-commercially available methacrylate monomers. The reactor, which... Read More about Methodology for the synthesis of methacrylate monomers using designed single mode microwave applicators.

Formation of Metallurgical Coke within Minutes through Coal Densification and Microwave Energy (2019)
Journal Article

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.

Predicting the Behaviour of Near-Critical and Supercritical Alcohols at Microwave Frequencies: Validation of Molecular Dynamic Simulations as a Tool that can Substitute for Measurements under Extreme Experimental Conditions (2019)
Journal Article

Equilibrium and non-equilibrium molecular dynamic simulations, predicting the dielectric properties of near-critical and supercritical methanol and ethanol at microwave frequencies have been carried out. The autocorrelation functions of the dielectri... Read More about Predicting the Behaviour of Near-Critical and Supercritical Alcohols at Microwave Frequencies: Validation of Molecular Dynamic Simulations as a Tool that can Substitute for Measurements under Extreme Experimental Conditions.

Production of high purity silica by microfluidic-inclusion fracture using microwave pre-treatment (2018)
Journal Article

© 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.

Microwave pyrolysis of pecan nut shell and thermogravimetric, textural and spectroscopic characterization of carbonaceous products (2018)
Journal Article

In the present work, the pyrolysis of pecan nut shell was studied using microwave technology at different input power and exposure time. The carbonaceous products were characterized using elemental analysis, potentiometric titration, thermogravimetri... Read More about Microwave pyrolysis of pecan nut shell and thermogravimetric, textural and spectroscopic characterization of carbonaceous products.

The relationship of dielectric response and water activity in food (2018)
Journal Article

This study has deduced a correlation between points of inflection of water activity and loss factor with respect to moisture content. A point of inflection in loss factor with respect to moisture content was found to coincide with the sorption isothe... Read More about The relationship of dielectric response and water activity in food.

Combining continuous flow oscillatory baffled reactors and microwave heating: Process intensification and accelerated synthesis of metal-organic frameworks (2018)
Journal Article

We have constructed a continuous flow oscillatory baffled reactor (CF-OBR) equipped with a homogeneous and controllable microwave applicator in an entirely novel design. This affords a new route to chemical production incorporating many of the princi... Read More about Combining continuous flow oscillatory baffled reactors and microwave heating: Process intensification and accelerated synthesis of metal-organic frameworks.

Applicability of mechanical tests for biomass pellet characterisation for bioenergy applications (2018)
Journal Article

In this paper, the applicability of mechanical tests for biomass pellet characterisation was investigated. Pellet durability, quasi-static (low strain rate), and dynamic (high strain rate) mechanical tests were applied to mixed wood, eucalyptus, sunf... Read More about Applicability of mechanical tests for biomass pellet characterisation for bioenergy applications.

Realising the environmental benefits of metal–organic frameworks: recent advances in microwave synthesis (2018)
Journal Article

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.