Natalia Czuma

AGH University of Krakow

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Katarzyna Zarębska

Kielce University of Technology

Paweł Baran

AGH University of Krakow

Piotr Zabierowski

University of Chemistry and Technology, Prague

Wοjciech Franus

Lublin University of Technology

Katarzyna Czerw

AGH University of Krakow

Bogdan Samojeden

AGH University of Krakow

Magdalena Gazda-Grzywacz

AGH University of Krakow

Monika Motak

AGH University of Krakow

Patrick Da Costa

Sorbonne Université

Jakub Szczurowski

AGH University of Krakow

Cooperative Institutions

AGH University of Krakow

Jagiellonian University

Faculty (United Kingdom)

Institute of Physical Chemistry

Urząd Miasta Krakowa

Cracow University of Technology

Eko-Energia (Poland)

Centre National de la Recherche Scientifique

Institut Jean Le Rond d'Alembert

Universitat Politècnica de Catalunya

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Ni/zeolite X derived from fly ash as catalysts for CO2 methanation

Fuel (2020)

Natalia Czuma Katarzyna Zarębska Monika Motak María Elena Gálvez Patrick Da Costa

Methanation

Atmospheric temperature range

Limiting

10.1016/j.fuel.2020.117139

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Citations (79)

Modelling of saturated and unsaturated hydrocarbons sorption on coal

Journal of Organic & Inorganic Chemistry (2018)

Natalia Czuma Agnieszka Dudzińska Sylwester Furmaniak Katarzyna ZarÃ„ÂTMbska PaweÃ...Â‚ Baran

Source

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Citations (0)

Synthesis of zeolites from fly ash with the use of modified two-step hydrothermal method and preliminary SO₂ sorption tests

Adsorption Science & Technology (2018)

Natalia Czuma Paweł Baran Wοjciech Franus Piotr Zabierowski Katarzyna Zarębska

Synthesis of zeolites from fly ash is an ecologically justified process aimed at the transformation of energy sector waste – fly ash into microcrystalline zeolites of broad possible application field. In this study, the synthesis of zeolites from fly ash by using a modified two-step synthesis was presented. The aim of such a planned experiment was to use the waste solutions from previous synthesis, in such a way that minimalization of negative influence of post-synthesis wastes on environment was possible. Received materials were tested for its sulfur dioxide sorption capacity, indicating its future possible application to capture SO2 from exhaust gases.

Microcrystalline

Hydrothermal Synthesis

10.1177/0263617418810607

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Citations (21)

The use of mathematical models for modelling sulphur dioxide sorption on materials produced from fly ashes

Energetika (2018)

Natalia Czuma Katarzyna Zarębska Paweł Baran Piotr A. Gauden

Fly ash-derived zeolites may become an attractive alternative for natural zeolites as well as for zeolites produced out of pure chemicals. A growing awareness of the need to protect the environment is an incentive for the use of waste materials as raw materials for production of microporous, multi-application materials – zeolites. Additionally, environmentally friendly actions undertaken in order to reduce air pollution intensify needs to search for new options for capturing hazardous air pollutants out of flue gases. Zeolites can be used as air pollutants sorbents. In this work there are presented results of sulphur dioxide, one of flue gases components, sorption experiments. The adsorbent used was zeolite synthesized form fly ash from a selected Polish power plant. For the purpose of investigation there were chosen fly ash zeolite samples synthesised with the use of different methods. Parameters were selected in such a way that one type of zeolite material was received. For the purpose of description of received results the mathematical model was used. As a result of experiments carried out it was found that the synthesized materials may be used as sulphur dioxide sorbent. It was found that the sorption capacity is highly connected with the zeolite synthesis method. Despite the fact that the same type of zeolite was received, samples presented differentiated values for capture, due to different conversion factors of fly ash into zeolite materials.

10.6001/energetika.v64i2.3784

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Citations (2)

Analysis of the influence of fusion synthesis parameters on the SO₂sorption properties of zeolites produced out of fly ash

E3S Web of Conferences (2016)

Natalia Czuma Katarzyna Zarębska Paweł Baran

Fly ash zeolites are interesting alternative for zeolies produced out of pure chemicals as well as for natural zeolites. It can be applied as SO2 sorbents out of flue gases. In the work the experiments were aimed at investigation of SO2 sorption capacity of samples produced out of fly ash in fusion process. The influence of fusion reaction parameters on the type of obtained zeolites and on the efficiency of synthesis was investigated. The samples containing the same types of zeolites, but with different production yield were testes on SO2 sorption capacity.

10.1051/e3sconf/20161000010

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Citations (11)

Fly Ash Based Geopolymers With Refractoriness Properties in the Context of Circular Economy

Research Square (Research Square) (2021)

Katarzyna Zarębska Piotr Zabierowski Magdalena Gazda-Grzywacz Natalia Czuma Paweł Baran

Abstract Nowadays appropriate waste management, along with efficient use of natural resources and implementing the concept of circular economy are an issue of high concern. The aim of the research was to synthesize geopolymers showing insulating properties, with specific strength and refractoriness parameters. For this purpose, waste from the energy sector was used which is produced in large quantities. The analyses were an attempt to manage fly ashes according to the concept of circular economy. For the synthesis of geopolymers perlite additive was used, the literature on the subject indicated that its addition had a positive effect on the refractoriness of the obtained materials. The SII4 geopolymer fully meets the requirements for thermal insulation in Poland (0.086 W/m∙K), as a material for single-layer walls. Of the two variables analyzed in the study, i.e., the influence of the mixture composition on the synthesis and the curing temperature of the geopolymer, only the first had a significant influence on the value of the thermal conductivity coefficient.

Circular Economy

Perlite

10.21203/rs.3.rs-802844/v1

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The Mineral Carbonation Process of High Calcium Fly Ash under Elevated Carbon Dioxide Pressure and Temperature

Scholars International Journal of Chemistry and Material Sciences (2020)

Jakub Sobala Natalia Czuma Jakub Bator Paweł Baran Piotr Zabierowski

Over the last years, the management of municipal solid waste (MSW) has been renovated and modernized.Timely treatment or storage of municipal waste does not, however, solve the problem of the threat MSW may pose for human life and environment.Therefore, projects of modern thermal plants for the processing of municipal solid waste, such as eco-incineration plants, have been launched on the market.It is not only possible to carry out the process of utilization of MSW, but also to obtain renewable energy.The result of MSW incineration is fly ash and bottom ash.In the fly ash composition, there are present chemical compounds such as silicon dioxide, magnesium oxide, aluminum oxide and calcium oxide.The carbonation process is a process in which calcium or magnesium oxide may react with carbon dioxide, forming carbonates.The mineral carbonation is possible with the use of high-calcium fly ash as one of the substrates of this chemical reaction.As a result, it produces carbonates which are not harmful to the environment as well as to humans.The idea of the experiment was to carry out the process of mineral carbonation of fly ash from the thermal treatment plant of municipal solid waste.The whole process was carried out at elevated pressure, and temperatures.After the experiment, several instrumental analyses were performed on the tested samples, such as XRD analysis, SEM scanning electron microscopy and IR infrared spectroscopy.The free calcium content was determined.

10.36348/sijcms.2020.v03i06.003

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Citations (2)

Fly ash-based geopolymers with refractoriness properties

Clean Technologies and Environmental Policy (2022)

Katarzyna Zarębska Piotr Zabierowski Magdalena Gazda-Grzywacz Natalia Czuma Paweł Baran

Perlite

10.1007/s10098-022-02309-x

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Citations (8)

CO2 adsorption properties of char produced from brown coal impregnated with alcohol amine solutions

Environmental Monitoring and Assessment (2016)

Paweł Baran Katarzyna Zarębska Natalia Czuma

10.1007/s10661-016-5423-z

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Citations (5)

The Influence of Temperature on the Expansion of a Hard Coal-Gas System

Energies (2018)

Paweł Baran Katarzyna Czerw Bogdan Samojeden Natalia Czuma Katarzyna Zarębska

This paper presents experimental results of the sorption-dilatometric kinetics of methane and carbon dioxide on a sample of hard coal from one of the coal mines in the Upper Silesian Coal Basin. The experiment included isothermal and non-isothermal-isobaric stages. For the isothermal stage, it was found that, up to a certain point (about 8 dm3/kg), the sample’s expansion was linearly related to the amount of gas absorbed. Studies on dilatometric kinetics under constant pressure, with a reduction in temperature, indicate that a dominant share of the heat-expanding properties of carbonaceous material influences changes in the size of the sample in the coal-gas system. It was also found that the sample expansion, due to temperature change, was 2.25‰, for the sample in both the vacuum and the non-adsorbing gas atmosphere.

Isothermal process

Isobaric process

Carbon fibers

10.3390/en11102735

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Citations (7)