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Browsing by Author "North, Brian C"

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Analysis of clean coal technology in Nigeria for energy generation

Author: Oboirien, BO ; North, Brian C ; Obayopo, SO ; Odusote, JK ; Sadiku, ER Date: Apr 2018 An analysis of clean coal technologies for the recovery of energy from Nigerian coals was carried out. The coal mines studied are Onyeama, Ogwashi, Ezimo, Inyi, Amasiodo, Okaba, Lafia-Obi, Owukpa Owukpa, Ogboyoga and Okpara. The estimated ... Read more
Challenges in hydrogen RCS' stakeholder engagement in South Africa

Author: North, Brian C ; Langmi, Henrietta W ; Swartbooi, Ashton M Date: Sep 2019 There is a great deal of knowledge and experience on the safe handling of hydrogen, and the safe operation and management of hydrogen systems in South Africa. This knowledge and experience mostly sits within large gas supply companies and ... Read more
Characterisation of coal and chars in fluidised bed gasification

Author: Oboirien, BO ; Engelbrecht, AD ; North, Brian C ; Du Cann, VM ; Falcon, R Date: Mar 2009 There is currently a gap in the understanding of the morphological transformations experienced by high ash and intertinite-rich coals undergoing conversion to char during atmospheric gasification. In this study, work has been carried to ... Read more
The Circular Economy as Development Opportunity: Exploring Circular Economy Opportunities across South Africa’s Economic Sectors

Author: Godfrey, Linda K ; Nahman, Anton ; Oelofse, Suzanna HH ; Trotter, Douglas ; Khan, Sumaya ; Nontso, Zintle ; Magweregwede, Fleckson ; Sereme, Busisiwe V ; Okole, Blessed N ; Gordon, Gregory ER ; Brown, Bernadette ; Pillay, Boyse ; Schoeman, Chanel ; Fazluddin, Shahed ; Ojijo, Vincent O ; Cooper, Antony K ; Kruger, Daniel M ; Napier, Mark ; Mokoena, Refiloe ; Steenkamp, Anton J ; Msimanga, Xolile P ; North, Brian C ; Seetal, Ashwin R ; Mathye, Salamina M Date: Dec 2021 The intention of this book is to present the CSIR’s position and interpretation of the circular economy, and to use it to drive discussions on where immediate circular economy opportunities are achievable in South Africa. Opportunities that ... Read more
Clean coal technology: gasification of South African coals - 2nd CSIR Biennial Conference

Author: Engelbrecht, AD ; North, Brian C ; Hadley, TD Date: Nov 2008 Electricity demand in South Africa is increasing at a rate of 1000 MW per year. Whilst there is increasing pressure to adopt non-fossil fuel electricity generating technologies, the abundant reserves and low cost of coal make it the preferred ... Read more
Clean coal technology: gasification of South African coals - IFSA 2008

Author: Engelbrecht, AD ; North, Brian C ; Hadley, TD Date: Nov 2008 Electricity demand in South Africa is increasing at a rate of 1000 MW per year. Whilst there is increasing pressure to adopt non-fossil fuel electricity generating technologies, the abundant reserves and low cost of coal make it the preferred ... Read more
Co-firing coal and biomass in a fluidised bed boiler

Author: North, Brian C ; Engelbrecht, AD ; Hadley, TD Date: Nov 2005 It is generally accepted that global warming is a reality, and that anthropogenic CO2 emissions are the cause of the warming. One method to reduce the effective CO2 release from boilers is to replace some of the coal with biomass, as combustion ... Read more
A comparison of hydrogen storage capacity of commercial and fly ash-derived zeolite X together with their respective templated carbon derivatives

Author: Musyoka, Nicholas M ; Ren, Jianwei ; Langmi, Henrietta W ; North, Brian C ; Mathe, Mahlanyane K Date: Oct 2015 This paper presents comparative results of structural, morphological and hydrogen sorption properties between commercial and fly ash-derived zeolite X including their respective templated carbon derivatives. The surface area of commercial ... Read more
Electrospun MOF nanofibers as hydrogen storage media

Author: Ren, Jianwei ; Musyoka, Nicholas M ; Annamalai, P ; Langmi, Henrietta W ; North, Brian C ; Mathe, Mahlanyane K Date: Jun 2015 In this study, Zr-MOF and Cr-MOF were chosen as representatives of the developed MOFs in our laboratory and were incorporated into electrospun nanofibers. The obtained MOF nanofibers composites were evaluated as hydrogen storage media. The ... Read more
Enrichment of trace elements in bottom ash from coal oxy-combustion: Effect of coal types

Author: Oboirien, BO ; Thulari, V ; North, Brian C Date: Sep 2016 In this study, the enrichment of trace elements in two coals under air and oxy-combustion conditions was studied. Twenty-one trace elements were evaluated. The two coal samples had a different concentration for the 21 trace elements, which ... Read more
Evaluation of ilmenite as a possible medium in a dry dense medium fluidized bed

Author: Kalenda, TN ; North, Brian C ; Naude, N Date: Oct 2017 Alternative dry coal beneficiation method is in high demand, especially in arid geographical environments. This dry process eliminates the need for water usage and there are suggestions that it has the benefits of high separation precision ... Read more
Evaluation of Ilmenite as dense medium for dry coal fluidized bed beneficiation

Author: Kalenda, TN ; North, Brian C ; Naude, N Date: Jul 2019 Published work on dry dense medium fluidized beds has mainly used magnetite and fine coal to make up the dense medium. Magnetite is used to achieve the required cut densities, but its recovery and reuse are problematic because it attaches to ... Read more
Experience gained in bench scale and pilot scale fluidised bed processing

Author: Hadley, TD ; North, Brian C Date: 2005 The CSIR has had a strong drive in fluidised bed technology for over two decades. During this period collaboration has been fostered with numerous partners and clients. By being able to draw on their resources, skills, test and other facilities, ... Read more
Experience gained in pilot-scale and bench-scale fluidised beds processing

Author: Hadley, TD ; North, Brian C Date: Feb 2006 The CSIR has had a strong drive in fluidised bed technology for over two decades. During this period collaboration has been fostered with numerous partners and clients. By being able to draw on their resources, skills, test and other facilities, ... Read more
Fabrication of core-shell MIL-101(Cr)@UiO-66(Zr) nanocrystals for hydrogen storage

Author: Ren, Jianwei ; Musyoka, Nicholas M ; Langmi, Henrietta W ; North, Brian C ; Mathe, Mahlanyane K ; Kang, X Date: Sep 2014 The fabrication of coreeshell nanocrystals by incorporating microporous UiO-66 into mesoporous MIL-101 is reported. The growth of the coreeshell MIL-101@UiO-66 nanocrystals was observed and supported by TEM and PXRD. The accessible pore volumes ... Read more
Feasibility study of electricity generation from discard coal

Author: North, Brian C ; Engelbrecht, AD ; Oboirien, B Date: Jul 2015 A techno-economic assessment was undertaken in two phases. The first is essentially a material and energy balance, in which fuel and sorbent requirements are calculated using input data such as plant size, plant efficiency, fuel CV, Ca/S ... Read more
Fluidised bed gasification of high-ash South African coals: An experimental and modelling study

Author: Engelbrecht, AS ; North, Brian C ; Oboirien, BO ; Everson, RC ; Neomagus, HWPJ Date: Nov 2011 The gasification of two high-ash coals were studied using a pilot scale fluidised bed gasifier using oxygen enrich air and steam as the gasification agents. The results of the tests show that the fixed carbon conversion and calorific value ... Read more
Fluidised bed gasification of low grade South African coals

Author: North, Brian C ; Engelbrecht, AD ; Hadley, TD Date: Sep 2006 To cope with increasing electricity demand, South Africa will need to install approximately 1000 MW of generating capacity per year for the foreseeable future. Whilst there is increasing pressure to adopt non-fossil fuel electricity generating ... Read more
Fluidised bed gasification of South African coals – experimental results and process integration

Author: Engelbrecht, A ; North, Brian C ; Oboirien, B ; Majozi, T ; Madzivhandila, V Date: Jun 2011 South Africa has abundant resources of high-ash and other low-quality coals. The aim of this work is to investigate the possibility of using fluidised bed gasification technology to convert these coals at a high efficiency into clean fuel gas ... Read more
Fluidised bed technology – Applications and R&D in Southern Africa

Author: North, Brian C ; Hadley, TD ; Engelbrecht, AD Date: 28 Jun 2007 This conference presentation discusses fluidisation fundamentals; fluidised bed technology; the wide range of applications for example in minerals treatment, but emphasis will be on combustion and gasification; applications of fluidised bed ... Read more

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