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Browsing by Author "Nyombi, Antony"

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Catalytic effects on the nonisothermal oxidation of solid fuels by oxygen: an experimental study

Nyombi, Antony; Williams, Mike; Wessling, Roland (American Chemical Society, 2019-09-24)

The role played by catalysts in solid fuel reactivity toward oxygen as a viable method for reducing toxic combustion emissions was studied. Catalyst (1 wt % Pd–Sn/alumina) treated and untreated solid fuels were analyzed ...
Determination of kinetic parameters and thermodynamic properties for Ash (Fraxinus) wood sawdust slow pyrolysis by thermogravimetric analysis

Nyombi, Antony; Williams, Mike; Wessling, Roland (Taylor and Francis, 2018-08-15)

Ash (Fraxinus) wood sawdust pyrolysis under nitrogen was conducted using 2, 5, 10, 15, and 20°C/min heating rates. Friedman and Starink methods were used for kinetic analysis while y(α) master plots were used for pyrolysis ...
Energy-dispersive X-ray diffraction mapping on a benchtop X-ray fluorescence system

Lane, David W.; Nyombi, Antony; Shackel, J. (Blackwell Publishing Ltd, 2014-12-31)

A method for energy-dispersive X-ray diffraction mapping is presented, using a conventional low-power benchtop X-ray fluorescence spectrometer, the Seiko Instruments SEA6000VX. Hyper spectral X-ray maps with a 10µm step ...
Mechanical impregnation of Pd-Sn/alumina and Cu-Mn/graphite on charcoal to minimise carbon monoxide emissions

Nyombi, Antony; Williams, Mike; Wessling, Roland (Elsevier, 2018-11-23)

This study investigated how to minimize carbon monoxide (CO) emissions from charcoal by impregnating with Pd-Sn/alumina and Cu-Mn/graphite. Samples were heated isothermally with continuous monitoring of residual CO using ...
Reactivity and free radical chemistry of lilac (Syringa vulgaris) charcoal

Nyombi, Antony; Williams, Mike; Wessling, Roland (American Chemical Society, 2019-01-28)

The reactivity, and surface chemistry of charcoal determine its combustion behaviour, and these properties depend on the source of the original wood, production conditions and treatment. Here we studied the properties of ...
Real time analysis of combustion emissions: a comparison of catalyst treated and untreated solid fuels

Nyombi, Antony; Williams, Michael; Wessling, Roland (Cranfield University, 2019-07-25)

Carbon monoxide (CO) from combustion of solid fuels causes some deaths worldwide every year. This study has been undertaken to evaluate the amount of carbon monoxide, (and carbon dioxide, nitrogen oxide & methane) evolved ...
Thermal and catalytic processing of solid fuels to minimise carbon monoxide emissions

Nyombi, Antony (2019-11)

This research was conducted to evaluate the amount of carbon monoxide (CO) emissions from the incomplete combustion of solid fuels, the factors responsible for its release and methods to minimize its release and thus the ...
Toxic emissions from smouldering combustion of woody biomass and derived char with a case study of CO build-up in an ISO container

Nyombi, Antony; Williams, Mike; Wessling, Roland (Taylor & Francis, 2019-05-30)

Carbon monoxide (CO) from the use of biomass products causes some deaths in the United Kingdom every year. This study was undertaken to evaluate the amount of CO from five species of wood sawdust, and charcoal with a case ...
When is carbon monoxide most dangerous: Safety concerns at Festivals

Nyombi, Antony; Williams, Mike; Wessling, Roland (2017-01-11)

This study investigated the effect of temperature & air flow on CO evolved from barbecue charcoal. The amounts of CO were analysed using FTIR and Electrochemical sensors and the colours of charcoal at different temperatures ...

Browsing by Author "Nyombi, Antony"

Browsing by Author "Nyombi, Antony"

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