WorldCat Identities

Mattisson, Tobias

Works: 12 works in 16 publications in 2 languages and 17 library holdings
Genres: Academic theses 
Roles: Author
Publication Timeline
Most widely held works by Tobias Mattisson
Sulfur capture during combustion of coal in circulating fluidized bed boilers by Tobias Mattisson( Book )

5 editions published in 1998 in English and held by 6 WorldCat member libraries worldwide

Synthesis and upscaling of perovskite Mn-based oxygen carrier by industrial spray drying route( )

1 edition published in 2018 in English and held by 1 WorldCat member library worldwide

Highlights: Perovskite Mn-based oxygen carriers for CLC are manufactured by spray drying. The effect of commercial raw Mn oxides as Mn source is investigated. Particles with strength of 2.8N and 0.94 methane conversion at 950°C were obtained. Production method of particles at lab-scale is transferred to industrial scale. Particles with good mechanical strength and reactivity were produced at tonne scale. Abstract: Chemical looping combustion (CLC) has inherent separation of the greenhouse gas CO2 by avoiding direct contact between air and fuel. The transfer of oxygen is realised by metal oxide particles that continuously circulate between the air and fuel reactors. Promising particles are perovskite Mn-based oxygen carrier materials, which have proven their performance at lab-scale. To test these particles at an industrial scale, it is necessary to use more raw materials that are widely and cheaply available in bulk quantities. The development of these Mn-based oxygen carriers by the spray drying method was investigated in this study. Furthermore, the production method is transferred to industrial scale so that several tonnes of oxygen carriers could be produced. The characterization and the performance of these particles at lab and industrial scale is discussed. Different Mn ores and oxides were selected to study the effect of the used Mn source on the oxygen carrier performance. Particles suitable for chemical looping were made based on diverse Mn sources with different Mn oxidation states. The performance of the oxygen carrier was found to be heavily impacted by impurities in the raw materials. The best performing Mn oxide was selected for up-scaling and each step of the spray drying process was optimized at large scale. The thermal treatment of the particles at tonne scale remains a challenge, but particles with a good mechanical strength, sphericity and sufficient reactivity for methane were manufactured
The EU-FP7 Project SUCCESS - Scale-up of Oxygen Carrier for Chemical Looping Combustion using Environmentally Sustainable Materials( )

1 edition published in 2017 in English and held by 1 WorldCat member library worldwide

Abstract: The paper gives a high level overview of the work performed in the EU-FP7 funded project SUCCESS (Scale-up of oxygen carrier for chemical looping combustion using environmentally sustainable materials). The project is the most recent one in a series of successful EU-funded research projects on the chemical looping combustion (CLC) technology. Its main objective is to perform the necessary research in order to demonstrate the CLC technology in the range of 10MW fuel power input. The main focus is on scale-up of production of two different oxygen carrier materials using large scale equipment and industrially available raw materials. This will guarantee availability of oxygen carrier material at tonne scale. The scale-up of the two materials, a Cu and a Mn based, was successful and first tests with the Cu material have already been performed in four different pilot units up to 150kW where the material showed excellent performance regarding fuel conversion. In addition to technology scale-up, extensive end-user evaluation is performed. This evaluation includes investigations on health, security and environmental impacts (HSE), a life cycle analysis and a techno-economic analysis to compare the CLC technology for steam generation against the current state-of-the-art technologies
Kompendium i energiteknik by Erik Ahlgren( Book )

1 edition published in 2001 in Swedish and held by 1 WorldCat member library worldwide

Oxygen carrier aided combustion (OCAC) of two waste fuels experimental and theoretical study of the interaction between ilmenite and zinc, copper and lead by Ivana Staničić( )

1 edition published in 2021 in English and held by 1 WorldCat member library worldwide

Zinc, copper and lead are amongst the more abundant trace metals in waste fuels such as municipal solid waste and recovered waste wood. The ashes from waste fuels could contain high contents of these metals, which could be valuable but also toxic in certain environments. Oxygen carrier aided combustion, OCAC, is a novel technology for combustion of biomass and waste. Utilizing oxygen carriers could affect the fate of these metals and have implications for stability and recycling. The aim of this work is to study the fate of zinc, copper and lead during oxygen carrier aided combustion of two waste fuels utilizing ilmenite as an oxygen carrier. In total, four samples have been obtained from two different industrial fluidized bed boilers using ilmenite as bed material. Due to low concentrations, bulk analysis methods are not suitable for speciation, i.e. SEM/EDX and XRD. Hence, this investigation utilizes high resolution x-ray photoelectron spectroscopy (XPS), coupled to detailed thermodynamic modelling, with the aim of understanding trace metal speciation, distribution and phase composition. Characterization of the four samples show that iron at the surface of ilmenite particles interact with both copper and zinc to form ferrites, CuFe 2 O 4 and ZnFe 2 O 4 . Lead, on the other hand, is more prone to end up in the fly ash as condensed PbCl 2 , but the mixed oxide PbTiO 3 could be identified at the oxygen carrier surface. Thermodynamic calculations were shown to be in line with the identified compounds
Fate of trace elements in Oxygen Carrier Aided Combustion (OCAC) of municipal solid waste by Ivana Staničić( )

1 edition published in 2022 in English and held by 1 WorldCat member library worldwide

Oxygen Carrier Aided Combustion is a novel fluidized bed concept for burning waste. This study analyzed solid samples from an industrial OCAC application using municipal solid waste and the oxygen carrier ilmenite. The presence of oxygen carriers impacts the ash chemistry, which can influence corrosion and ash characteristics. By investigating samples obtained from industrial applications, unique and highly relevant information on the solid-state chemistry and the fate of important elements can be obtained. In total, 20 bottom ashes and 17 fly ashes were sampled over a period of 38 days. In a preceding study, the surface interaction between ilmenite and Zn, Cu and Pb was investigated. In this paper, the distribution of these elements throughout the particle cross-section and the influence of residence time has been studied using XRD, SEM-EDX and XPS. The results show that Zn is incorporated in the Fe-rich ash layer over time in the form of Zn ferrites, while Cu accumulates inside the ilmenite particles with time, and Cr is enriched in the magnetically separated bottom ash. Low concentrations of Pb were detected in the bottom ashes, suggesting that a significant part is released in the gas phase. The influence of temperature, bed material and reduction potential were evaluated using multicomponent, multiphase equilibrium calculations. It is shown that an ilmenite bed is less prone to form melts in comparison to a bed of silica sand and that the addition of sulfur could decrease the volatilization of Pb
Cu-impregnated alumina/silica bed materials for Chemical Looping Reforming of biomass gasification gas( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

Abstract: Raw gas derived from low-temperature biomass gasification usually contains condensable hydrocarbons referred to as "tars" as well as other hydrocarbons such as ethylene and other olefins. Reforming of these compounds via Chemical Looping Reforming has been recently proposed. In this work Cu supported on four different Al2 O3 /SiO2 -based porous support materials were investigated for reforming of ethylene. The investigated particles were manufactured by incipient wetness impregnation of the porous support with a copper nitrate solution followed by calcination, and then tested in a small-scale fluidized bed reactor at temperatures between 600 °C and 850 °C. The ethylene conversion was found to be strongly inhibited by the presence of aromatics in the gas. However, it was found that Cu supported on commercial PURALOX transition alumina catalyst exhibited superior properties, with high degrees of ethylene conversion achievable even in the presence of aromatic compounds. Under the experimental conditions in this work, up to 90% ethylene conversion was obtained at T = 850 °C in the presence of high concentrations of benzene. For the other prepared materials, the ethylene conversion was drastically reduced when monoaromatic compounds were present in the feed
Manganese ores as oxygen carriers for chemical-looping combustion (CLC) and chemical-looping with oxygen uncoupling (CLOU)( )

1 edition published in 2017 in English and held by 1 WorldCat member library worldwide

Fate of lead, copper, zinc and antimony during chemical looping gasification of automotive shredder residue by Ivana Staničić( )

1 edition published in 2021 in English and held by 1 WorldCat member library worldwide

Gasification experiments in this study were performed in a 2-4 MW indirect gasifier coupled to a semi-commercial CFB combustor at Chalmers University of Technology. Experiments were carried out during 13 days with automotive shredder residue (ASR), giving a unique opportunity to investigate the bed material under realistic conditions and with long residence times. The metal rich ash was accumulated in the bed, gaining some oxygen carrying capabilities, creating a chemical looping gasification (CLG) process. This study aims to expand the knowledge about the chemistry of zinc, copper, lead and antimony during CLG of ASR. Several experimental methods have been utilized, such as XRD, SEM-EDX and XPS along with detailed thermodynamic calculations to study chemical transformations that can occur in the system. Thermodynamic calculations showed that the reduction potential affect the phase distribution of these elements, where highly reduction conditions result in heavy metals dissolving in the slag phase. Copper and zinc ferrites, lead silicates and antimony oxides were identified at the particle surfaces in the bottom ash. The formation of an iron rich ash layer plays an important role, especially for copper and zinc speciation. The main pathways in the complex CLG system have been discussed in detail
Sulphur capture in fluidized bed boilers : calcium sulphide formation and limestone reactivity by Tobias Mattisson( Book )

1 edition published in 1995 in English and held by 1 WorldCat member library worldwide

Enhanced performance of manganese ore as oxygen carrier for chemical-looping with oxygen uncoupling (CLOU) by combination with Ca(OH)2 through spray-drying( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

Abstract: Chemical-looping with oxygen uncoupling (CLOU) is an innovative combustion technology with inherent capture of the CO2 and potential to drastically reduce the cost of capture. The process requires two interconnected reactors, between which the oxygen carrier particles are circulated while carrying oxygen from the combustion air to the fuel. In this work, the reactivity and mechanical stability of five materials were studied; three natural ores and two materials which were combinations of an ore and Ca(OH)2 . The overall aim was to investigate the feasibility of making a reactive and mechanically stable material using cheap raw materials and an industrially relevant particle manufacturing process. The two combined materials behaved differently from their natural counterparts. The Brazilian ore + Ca(OH)2 showed a decrease in reactivity towards methane, but higher reactivity towards syngas in comparison to the pure ore. The South African ore + Ca(OH)2 showed a major improvement in reactivity towards both syngas and methane, which could be attributed to formation of a perovskite-structure material with significant CLOU properties. A comparison between the pure ores and the combined materials show that the addition of Ca(OH)2 had generally a beneficial impact on the mechanical stability of the oxygen carriers. As a significant change in the particle size distribution was seen for all oxygen carrier materials after repeated redox cycles with long reduction periods, the particle disintegration was likely caused by the chemical phase transformations occurring inside the particles, rather than by mechanical forces
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