Dennys Angove

Dennys Angove

BSc(Hons), G.DipEd., PhD
Provision of outreach talks on the science of climate change and air quality to a wide range of community groups

About

39
Publications
3,076
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
600
Citations
Introduction
Retired as a Principal Research Scientist from the CSIRO in August 2014 where I was a research project leader as well as the manager of the indoor smog chamber lab which was set up to study tropospheric ozone and secondary organic aerosol formation. Joined the UNSW as a course convener in the MEM program for the 2017-2018 summer session and continued as a casual lecturer until March 2022 as well as providing educational outreach talks on air quality and the science of climate change.
Additional affiliations
July 2019 - December 2021
Hornsby Shire Council
Position
  • Consultant
Description
  • Contribution to Climate Wise Strategy and provision of related environmental advice as a volunteer
July 2018 - July 2021
Workers' Educational Association ( WEA Sydney)
Position
  • Lecturer
Description
  • Science of climate change, air quality and carbon pricing policy
July 2018 - July 2021
UNSW Sydney
Position
  • Lecturer (casual)

Publications

Publications (39)
Chapter
The capture of CO2 produced during fossil fuel combustion is problematic. The use of amines, such as monoethanolamine (MEA), to absorb CO2 is one strategy widely considered to be a viable solution to this problem. Given the scale of the carbon capture process and the mass of MEA required to facilitate CO2 capture, investigations into the environmen...
Article
Full-text available
A new smog chamber was constructed at CSIRO following the decommissioning of the previous facility. The new chamber has updated instrumentation, is 35 % larger, and has been designed for chemical mechanism and aerosol formation studies. To validate its performance, characterisation experiments were conducted to determine wall loss and radical forma...
Technical Report
This report describes an experimental and modelling study of the impact of ethanolamine (MEA) emissions from the CSIRO Loy Yang pilot scale PCC plant. A chemical transport modelling system was used to simulate the likely impact of retrofitting a PCC installation to Loy Yang power station. A representative month (March 2005) was selected on the basi...
Article
Full-text available
Amine-based Post Combustion Capture (PCC) of CO2 is a readily available technology that can be deployed to reduce CO2 emissions from coal fired power plants. However, PCC plants will likely release small quantities of amine and amine degradation products to the atmosphere along with the treated flue gas. The possible environmental effects of these...
Article
Full-text available
A measurement program designed to evaluate health impacts or benefits of using ethanol blend petrol examined exhaust and evaporative emissions from 21 vehicles representative of the current Australian light duty petrol (gasoline) vehicle fleet using a composite urban emissions drive cycle. The fuels used were unleaded petrol (ULP), ULP blended with...
Article
The photooxidation of fuel vapour was investigated in a smog chamber and simulated using three chemical mechanisms, the Master Chemical Mechanism (MCMv3.1), SAPRC-99 and the Carbon Bond chemical mechanism (CB05). Three varieties of fuel were used, unleaded petrol (ULP) and two ULP-ethanol blends which contained 5% and 10% ethanol (E5, E10). The fue...
Article
The updated SAPRC-07 mechanism was evaluated against data from experiments performed in the CSIRO smog chamber. The mechanism predictions have been compared to experimental results as well as predictions by SAPRC-99.Experiments were performed using either toluene or m-xylene in the presence of NOx at sub-0.1 ppmv concentrations. For the majority of...
Technical Report
Full-text available
This Clean Air Research Program (CARP) report presents an account of 39 smog chamber experiments performed using toluene and m-xylene vapour. These experiments included a reactive organic carbon (ROC) matrix study comprising ROC/NOx regime/threshold experiments at three NOx concentrations of ~69, ~50, and 34 ppbv and four hydrocarbon concentrations...
Technical Report
http://www.arb.ca.gov/research/reactivity/3-25-2009/azzi-review.pdf
Article
Effects of phosphorus poisoning on the activity of powdered exhaust gas catalyst components containing different oxides and platinum were studied. The decrease in the catalytic activity was associated with phosphorus compounds formed with the catalyst components. The poisoned samples were studied using XRD and FTIR-ATR techniques. The same compound...
Article
The formation of secondary organic aerosol (SOA) at yields of 0.4-0.5% and having a geometric mean diameter < 100nm has been observed during indoor environmental chamber experiments on 1.0-2.2 ppmv 1,3-butadiene in the presence of 0.5-1.1 ppmv NO. The SOA was collected on glass fibre filters, some of which were acetylated using a pyridine/ acetic a...
Article
Photo-oxidation experiments on propene-NOx-air and 1-butene-NOx-air mixtures were performed in the CSIRO indoor environmental chamber. These data were used to test the alkene sub-mechanisms from the Master Chemical Mechanism version 3.1 (MCM v3.1). A comparison of measured and modelled propene-NOx data showed that the mechanisms required the inclus...
Conference Paper
Understanding which factors most influence the level and type of pollution that is emitted from vehicle exhaust is important for environmental protection, health and transport planning. Most research in this area has been limited to a programmed drive cycle using a vehicle dynamometer to simulate real-world driving conditions. However, previous stu...
Conference Paper
The use of ethanol blended motor vehicle fuels in Australia continues to be an important issue on many fronts, including production sources, economics, affect on vehicles and impacts on air quality. This paper reports the results of a preliminary study performed with the CSIRO indoor smog chamber to compare ozone formation of fuel vapour derived fr...
Conference Paper
Dusts collected from the verges of roads in Sydney, Australia have been analysed for platinum, palladium, rhodium, cerium and lanthanum. The dusts were extracted with aqua regia and the concentrations of the selected trace elements determined by ICP-MS. The highest concentrations of platinum group elements (PGEs) were found in two samples taken fro...
Conference Paper
A low cost system capable of logging vehicle parameters and exhaust composition has been implemented on an Australian car. Data obtained with it show that short sharp increases in emissions occur when throttle openings exceed particular values under load. They occur because the engine management system has commanded very rich operation. Carbon mono...
Article
The oxidation of a mixture of benzene, toluene, 1-hexene and isooctane in the absence and presence of carbon monoxide has been studied over Pt/Al2O3 and Rh/Al2O3 monolith catalysts arranged singly and in various 1:1 and 4:1 combinations. Physical mixtures with both ratios are much more active than either single metal catalyst for complete removal o...
Article
The extent to which isocyanic acid (HNCO) is formed during the reaction of NO/CO/H2 mixtures over silica-supported Pt, Rh, and Pd has been investigated together with the subsequent hydrolysis of HNCO on oxide systems placed downstream. The yield of HNCO from NO is highest for Pt/SiO2 exceeding 35% at 315°C with a standard 2800/3400/1200 ppm NO/CO/H...
Article
The reactions of propane with O2, N20 and NO over Pt, Pd and Rh catalysts have been investigated under near-stoichiometric conditions. In general, Pt is the most active catalyst for propane oxidation, followed by Pd and Rh. In individual tests, the reactivity of the oxidants varies widely, the order being O2 >> N20 > NO for Pt, O2 ≈ N2O >> NO for R...
Article
Mapping procedures have been developed to characterise some of the position dependent phenomena occurring in three-way catalytic converters. The activity of small samples for the removal of CO, NO, propene and propane from a simulated mixture under slightly lean conditions was measured in a flow system and correlated with surface area. Contaminatio...
Conference Paper
CSIRO Energy Technology is developing a new indoor environmental chamber to study the photochemistry of air toxics and fine particle formation at realistic concentrations. The chamber has a volume of 18090 litres. It is constructed out of 3 mil PTFE Teflon, which is supported on a light aluminium frame. The chamber is covered with a highly reflecti...
Article
The oxidations of benzene, toluene and 1-hexene, alone and in mixtures with isooctane and carbon monoxide, have been investigated over alumina-supported platinum, palladium and rhodium under three different conditions. In the absence of CO, oxidation of all hydrocarbons is complete at the lowest temperature with platinum. However, inclusion of CO g...
Article
XRD and surface area determinations have been carried out on samples of a commercial ceria–baria–alumina on cordierite monolith heated in air or H2/He at temperatures from 500 to 1200°C. Below 700°C the fall in surface area is slightly greater in the reducing atmosphere but stability is better above 1000°C. Sintering in air proceeds with continuous...
Article
The oxidation of toluene and benzene in a four hydrocarbon mixture with and without carbon monoxide present has been investigated over Rh/Al2O3 and Rh/CeO2/Al2O3 catalysts containing residual chlorine. Up to 12% of toluene can be converted to benzene with a near stoichiometric feed containing carbon monoxide. Much less benzene is formed in the abse...
Article
The oxidation of a mixture of four hydrocarbons and carbon monoxide has been studied over alumina-supported palladium, platinum and rhodium catalysts made using chloride precursor salts. The order of the light-off temperatures for the hydrocarbons is the same for each metal (1-hexene, toluene, benzene and finally iso-octane) but the separation betw...
Article
The formation of nitrous oxide during the reaction of a mixture of CO, NO, C3H6, C3H8, H2 and O2 over supported rhodium, platinum and palladium catalysts has been investigated under near-stoichiometric conditions. Rhodium gives the highest amount of N2O with a peak selectivity near 70% at 250°C followed by a steady decline to low levels by 400°C. W...
Article
Automotive catalytic converters lose activity whilst in service. The degree of deactivation depends upon a number of factors including contamination by residues of additives or trace elements in fuel and/or engine oil, which generally reduces the surface area of the catalyst. In this initial investigation, PIXE was used to map contaminant depositio...
Conference Paper
Catalytic converters are the preferred method for reducing emissions of carbon monoxide and nirogen oxides from automobiles. The purpose of this study is to examine the performance of converters which have seen extensive use on vehicles and to determine the causes of deterioration in any samples showing loss of performance. An initial survey of sev...
Article
Full-text available
balancing chemical equations

Network

Cited By

Projects

Projects (2)
Project
Providing talks to members of the public and/or groups of people who are interested in improving their understanding of the science of climate change